CBF1000

CBF1000 => General Maintenance, Servicing, and Mechanical => Topic started by: Rachy40 on 03 May, 2016, 10:04:08 PM

Title: CBF running temperature
Post by: Rachy40 on 03 May, 2016, 10:04:08 PM
Bought an 06 CBF 1000 in November. Noticed that when riding it the fan comes on a lot. It even comes on during the cold weather in December-February. As there is no way of watching the temp gauge I find this a bit concerning as I'm due to ride it in Spain this June. I've never had any other bike have a fan come on in cold weather during Normal riding. My blackbirds fan hardly ever comes on unless I'm in slow moving traffic.
Any advice or comments would be appreciated
Title: Re: CBF running temperature
Post by: Robo on 03 May, 2016, 10:38:40 PM
Sounds like a CBF to me. Normal  :028:
Title: Re: CBF running temperature
Post by: alan sh on 03 May, 2016, 10:48:54 PM
I agree. Riding in town, the fan comes on very quickly. As long as it goes off again, you're fine.

Alan
Title: Re: CBF running temperature
Post by: Rev Ken on 03 May, 2016, 10:54:10 PM
Even with a radiator guard and riding fuly loaded very slowly through congested towns in hotter parts of Europe than Spain, it never suffered, unlike two BMWs in our group! (And I've now got a BMW!)
Title: Re: CBF running temperature
Post by: bazza696 on 04 May, 2016, 08:00:09 AM
The CBF is no way as bad as the VTR having radiators on the side. I have a temperature gauge on it and spends most of the time just under the red line with the fan running. When I go out with the boys for a ride, get 10 storms together at a set of lights, the heat is nearly unbearable.

I would be more worried if the fan doesn't come on. I'm not sure how the CBF is set up but my Proton Satria GTI fan came in regularly to keep the temperature at a normal level, rather than allowing it to over heat before cutting in, cause being a Malaysian car in a hot country, once it overheated it's hard to get the temperature back down.
Title: Re: CBF running temperature
Post by: ivor hugh jarse on 04 May, 2016, 08:39:37 AM
An engine burning fuel should have heat.. I had a Bandit 1200 air/oil cooled without any water cooling and in summer when stood the heat haze ripples rising up from each side of the engine were distorting my vision. I did 48,000 miles of hard miles and it never missed a beat. 
Title: Re: CBF running temperature
Post by: Trance-Elbow on 04 May, 2016, 09:28:56 AM
Mines a 2008 and the only time the fan doesn't come on is when the temperature out is at or below 0C. in hot weather it does feel very hot, but it's never caused a problem. I'm guessing that is normal behaviour for a Biffer.

What has always worried me though, is the lack of temp gauge. How do I know that the "Over Temp" warning light even works?
Title: Re: CBF running temperature
Post by: Robo on 04 May, 2016, 10:36:33 AM
If you hang tiny hooks from the front of the Radiator  :260: you can dry your weeks worth of underpants.

Or Gloves. :138:
Title: Re: CBF running temperature
Post by: Trance-Elbow on 04 May, 2016, 11:58:39 AM
*Originally Posted by Robo [+]
If you hang tiny hooks from the front of the Radiator  :260: you can dry your weeks worth of underpants.

Or Gloves. :138:

But Robo - Surely you need them behind the radiator as the air entering will only be ambient temperature. If behind, your underpants will benefit from the additional heat generated by the radiator and thus accelerate the drying cycle/time?  :164:
Title: Re: CBF running temperature
Post by: ivor hugh jarse on 04 May, 2016, 12:33:06 PM
*Originally Posted by Robo [+]
If you hang tiny hooks from the front of the Radiator  :260: you can dry your weeks worth of underpants.

Or Gloves. :138:

Underpants? plural.... not singular underpant!... you extravagant person - sure you're not a female?
Title: Re: CBF running temperature
Post by: Stuart Fordyce on 04 May, 2016, 01:08:22 PM
Joining in here as mine runs rather hot. At the moment any stop at traffic lights brings on the temperature light. The coolant level is fine and there's no obvious leak. I do run a rad guard. However, I don't want to cook the head gasket or anything - have I got a duff thermostat, or is there anything else to check? O2 sensor, temp sensor or the like? I've had a look through the old threads and yet to find a conclusive answer.
Title: Re: CBF running temperature
Post by: gingernutz on 04 May, 2016, 09:12:44 PM
Obviously a cbf thing,  mine is hot too. I stopped to filter through heavy traffic after a long run one day last week and just then it started to rain - hey presto huge cloud of steam.  :034:
Title: Re: CBF running temperature
Post by: Robo on 04 May, 2016, 10:20:42 PM
Guy's n Underpant wearers you own a CBF. runs hot in winter and hotter in summer.

 :062: you wish :047:
Title: Re: CBF running temperature
Post by: bazza696 on 05 May, 2016, 11:05:30 AM
My only concern would be that if you are doing a lot of town riding and not getting the bike up to a 30mph or more, then you may start to run the battery a little low.
Title: Re: CBF running temperature
Post by: Trance-Elbow on 05 May, 2016, 11:50:09 AM
*Originally Posted by Stuart Fordyce [+]
Joining in here as mine runs rather hot. At the moment any stop at traffic lights brings on the temperature light......

In 8 years, I've never seen the temperature light come on. That would worry me greatly!!  :005:

Could be thermostat or a weak pump or something. Does the service manual suggest any possible cause's and/or tests to carry out?
Title: Re: CBF running temperature
Post by: Bifferman on 05 May, 2016, 02:28:43 PM
*Originally Posted by Trance-Elbow [+]
In 8 years, I've never seen the temperature light come on. That would worry me greatly!!  :005:

Could be thermostat or a weak pump or something. Does the service manual suggest any possible cause's and/or tests to carry out?

 :0461:  It would concern me as well and I wouldn't run the bike until I had sorted it.  I have had my bike for 9 years come July and never seen the light come on when riding the bike but the fan does come on early.  If fan was coming on without the coolant indicator light then I wouldn't worry at all because this is normal.  Coolant light coming on is NOT normal.

Fan comes on so it can't be the wiring connector which has occasionally been an issue for a few (small number).  You need to read the MKI Service Manual - search 'Service Manual MKI' and you will find the link.  Chapter 7-4 Trouble Shooting.  Coolant change (if it has not been changed since 2006, change it with the correct anti freeze), indeed is the coolant level correct.  A couple have had to change the thermostat which is located in a housing under the fuel tank - lift tank at front and hinge at rear to access but it is covered in the manual anyway.  If you remove the thermostat the manual gives detailed instructions on how to check if it is OK.  The thermostat is more likely rather than the pump (you can hear that by putting a screw driver blade on the pump housing and ear to other end), the ECT sensor or the fan control relay which I have never heard of fritzing.

Just sort it, before you run the bike any more.
  If you can't do the work or prefder not to this is not a major job for a stealer to sort.  The most expensive bit will be the coolant additive and try not to get ripped by using Honda's own.

Andy
 :149:

p.s.  Steam coming from the rad when it has been raining and you come to a stand still is almost always due to there being no drain hole in the lower frame of the radiator.  Also happens when you have cleaned the bike and hosed it down so unless you can actually see water pis*ing out of the rad somewhere don't let it concern you.
Title: Re: CBF running temperature
Post by: Biker Mike on 05 May, 2016, 05:17:10 PM
*Originally Posted by Bifferman [+]
...
The most expensive bit will be the coolant additive and try not to get ripped by using Honda's own.
A dealer quoted me about 16 for coolant yesterday.
Title: Re: CBF running temperature
Post by: Stuart Fordyce on 05 May, 2016, 07:40:29 PM
Sorted it out. My radiator cover had trapped a lot of crap behind it. I suspect Attenborough would have been interested. I have removed the rad cover now.

I have always been a little wary when washing the radiator. I had to replace mine a few years ago, which was an expensive business. I have perhaps been a little gentle with the hosepipe.

The thermostat will be tested when I change the coolant at the 40k service at the end of the month.
Title: Re: CBF running temperature
Post by: Stuart Fordyce on 05 May, 2016, 07:43:42 PM
Going through other replies. The coolant level is OK, and it's worth me pointing out that I instruct in a very hilly part of South London. My bike is invariably going very slowly in traffic, and I spend an inordinate amount of time waiting at traffic lights.
Title: Re: CBF running temperature
Post by: Bifferman on 05 May, 2016, 08:12:13 PM
*Originally Posted by Stuart Fordyce [+]
Going through other replies. The coolant level is OK, and it's worth me pointing out that I instruct in a very hilly part of South London. My bike is invariably going very slowly in traffic, and I spend an inordinate amount of time waiting at traffic lights.

There are other instructors on here who ride a MKI and they do NOT have the coolant light coming on.   There are also peeps who ride in very much higher temps than we have here and same.  It should not come on at all.

Glad you have found one possible cause.  Glad you are going to check the thermostat when you have the coolant changed.  The coolant which basically a 50:50 mix with distilled water also acts to cool the engine so good that you are having this changed as well.

Sounds as if you are heading in the right direction so hope it all works out fine.

Andy
 :149:
Title: Re: CBF running temperature
Post by: bazza696 on 06 May, 2016, 08:34:24 AM
*Originally Posted by Stuart Fordyce [+]
Going through other replies. The coolant level is OK, and it's worth me pointing out that I instruct in a very hilly part of South London. My bike is invariably going very slowly in traffic, and I spend an inordinate amount of time waiting at traffic lights.

If your going to invest in changing your coolant and your riding causes the fan to come on all the time, why not consider investing in a waterless coolant.

I believe the benefits over normal water based coolants, is that it has a lower surface temperature so it will have more surface contact with the internal components and when water based coolants get hot, the liquid in contact with the surface can start to boil and create steam. This causes a void where the liquid is no longer in contact with the engine, and can reduced or offer no further heat transfer, which causes the temperature to rise and starts a viscous circle.
Title: Re: CBF running temperature
Post by: Stuart Fordyce on 06 May, 2016, 09:06:11 AM
I have seen those on Wheeler Dealers and it is a thought...
Title: Re: CBF running temperature
Post by: Trance-Elbow on 06 May, 2016, 11:47:00 AM
I too had considered using waterless coolant, but bulked at the  cost.  :191:

There appear to be 3 types of standard ready mixed coolant on the market. These are Blue, Red and Purple. They all seem to be of suitable spec for the Biffer and the only difference I can see is the stated service life and inclusion of something called Organic Acid Technology (OAT).  :087:

Does anyone have any recommendation which is best to use and why?

Blue - http://www.eurocarparts.com/ecp/p/car-accessories/engine-oils-and-car-fluids/antifreeze-and-screenwash/blue-antifreeze/?523770501&0&cc5_865 (http://www.eurocarparts.com/ecp/p/car-accessories/engine-oils-and-car-fluids/antifreeze-and-screenwash/blue-antifreeze/?523770501&0&cc5_865)

Red - http://www.eurocarparts.com/ecp/p/car-accessories/engine-oils-and-car-fluids/antifreeze-and-screenwash/red-antifreeze/?523770511&0&cc5_866 (http://www.eurocarparts.com/ecp/p/car-accessories/engine-oils-and-car-fluids/antifreeze-and-screenwash/red-antifreeze/?523770511&0&cc5_866)

Purple - http://www.eurocarparts.com/ecp/p/car-accessories/engine-oils-and-car-fluids/antifreeze-and-screenwash/red-antifreeze/?523770521&0&cc5_866 (http://www.eurocarparts.com/ecp/p/car-accessories/engine-oils-and-car-fluids/antifreeze-and-screenwash/red-antifreeze/?523770521&0&cc5_866)
Title: Re: CBF running temperature
Post by: Robo on 07 May, 2016, 11:49:49 AM
*Originally Posted by Trance-Elbow [+]
  :087:

Does anyone have any recommendation which is best to use and why?




I use this in all my vehicles, 3 bikes , 2 cars and 1 van.

http://www.eurocarparts.com/ecp/p/car-accessories/engine-oils-and-car-fluids/antifreeze-and-screenwash/blue-antifreeze/?523770501&0&cc5_865 (http://www.eurocarparts.com/ecp/p/car-accessories/engine-oils-and-car-fluids/antifreeze-and-screenwash/blue-antifreeze/?523770501&0&cc5_865)

I buy it concentrated and  mix it 50 /50 with deironized water  for my bikes but just mix it with tap water for my 4 wheeled vehicles. Never had a problem with the bikes as I change it yearly, never had a problem with the 4 wheeled vehicles, I just top it up and change it when needed.

Title: Re: CBF running temperature
Post by: macdoc on 20 May, 2016, 08:39:32 PM
Sitting here with soem riders...oen recommended a thermocouple on the rad hose and get a gauge. Anyone taken that approach?...
I reallly prefer to see what the temp is approx instead of depending on idjit light.
Title: Re: CBF running temperature
Post by: Biker Mike on 20 May, 2016, 10:42:10 PM
I recently posted this under another header, but relevant to the discussion here:
https://www.cbf1000.com/index.php/topic,20077.msg238590.html#msg238590 (https://www.cbf1000.com/index.php/topic,20077.msg238590.html#msg238590)
Title: Re: CBF running temperature
Post by: macdoc on 20 May, 2016, 11:46:26 PM
Grabbed one of these for $20.

(https://images.weserv.nl/?url=ecx.images-amazon.com/images/I/71sQ-IBTlhL._SL1500_.jpg)

A unique digital temperature meter with a 8 ft cable and remote temp sensor probe. Ideal for seeing temperature in cars, aquariums, pet habitats, HVAC air ducts, computer towers and cpu temp, reading temperature inside or outside the home, test equipment, farms, pools , jacuzzi, see outside air or water temperature in automobiles, vans, trucks,RV's and boats. The unit has a great professional look when flush or surface mounted onto any surface. Mounting Hole Size 1"x 1.75" (0.5" deep) Temp. Range -40F to +160F.to +160F ( -30C to +70C) Fahrenheit to Celcius Selector Switch located on the back of unit Unit auto updates the temperature reading every 8 seconds. The temp sensor probe is rustproof because its made of 100% stainless steel. It does not have a backlight . This is a high quality unit ( Not made in China ).

All this instrument does is tell the temperature -- that's exactly what I wanted. I used double backed super velcro to attach the thermometer on the motorcycle

Think it's useful...worth a try.
Title: Re: CBF running temperature
Post by: SaturnV on 21 May, 2016, 10:04:44 AM
 :0461:

Only had my bike 1 week and only 150 miles but that's the first thing I noticed!  My old CBR F3 it hardly ever comes on (except at traffic lights) but that has a gauge too which barely goes above 'cold' section of dial except when stopped for a few mins. 
Yes it's annoying not having a temp gauge - they could've easily fitted one on the left where the HISS warning is with a feed from the ECT sensor.  Found a bit in the Haynes manual, Trance-Elbow, about testing the temp warning LED and ECT sensor if you don't have already I can take pics and email you or attach here...
Title: Re: CBF running temperature
Post by: macdoc on 21 May, 2016, 11:17:37 AM
That's okay thanks ...I'm happy with the velcro approach. I can also use it as an ambient temp too once I get a feel on the bike temp.
Going out for 3 weeks on the road so any sort of an engine temp gauge appeals without tapping the electronics. Once I have a baseline reading...from cruising speed to slow traffic...I just need to keep an eye on it. I've never seen the heat sensor light come on but then in bright sunlight I could have missed it.

Suggestions as to were to place the sensor welcome. 8' cable so have some range.
Title: Re: CBF running temperature
Post by: Robo on 21 May, 2016, 11:28:58 AM
Each to their own but I can't see the point.

I ride up to 10 hours a day in a little place called LONDON. Where the traffic is gridlocked.

Then other days I'm all over the tiny Island.

The bike runs hot and heats my pies nicely when strapped to the zorts.

The only time the warning light has ever come on was when the water was a bit low in the Radiator due to me not bleeding the system correctly after a water change.


Check out what temp the thermostat opens at and the fan comes on, :028:




Title: Re: CBF running temperature
Post by: macdoc on 21 May, 2016, 11:46:52 AM
I ride quite remote areas and last time I had a breakdown ( shredded tire ) it took be 11 hours to get a tow. I don't need that when a $20 gauge can reassure me all is well.

I have a TPMS for the last 4 years as well. Served me well even tho the only flat ( since plugged and solid ) showed up in the driveway.

Buddies Burgman 650 ...which in 4 years of owning mine had never moved a shred above 3 bars on the temp....started to show above 3 and we were able to get to a spot in the Daintree rainforest where we could figure out what was going on, top up and limp home. A tow from there would have been brutal as it's across a ferry.

(https://images.weserv.nl/?url=douglas.qld.gov.au/wp-content/uploads/2013/12/daintree-ferry.jpg)

with some local critters to be concerned about. The crocs pull up and sun right beside the ferry launch.

(https://images.weserv.nl/?url=i106.photobucket.com/albums/m269/macdoc/travel/australia%202012/daintreemindyourfeetCroc.jpg) (http://s106.photobucket.com/user/macdoc/media/travel/australia%202012/daintreemindyourfeetCroc.jpg.html)
Gotta love Aus  :015:

Tho moutain region Pennsylvia gives it a run for remote...even the tow driver got lost.
The GPS SAID it was a road.

(https://images.weserv.nl/?url=i106.photobucket.com/albums/m269/macdoc/Burgmanrockystream.jpg) (http://s106.photobucket.com/user/macdoc/media/Burgmanrockystream.jpg.html)

do I hear banjos?? :110:
Title: Re: CBF running temperature
Post by: Robo on 21 May, 2016, 11:51:57 AM
Nice pics but pointless :431:
Title: Re: CBF running temperature
Post by: SaturnV on 21 May, 2016, 11:59:01 AM
According to manual the thermostat is fully open at 90-95 deg C and on the cb1000r the overtemp warning trips at 122 deg C when the digital readout starts flashing. Haynes don't say about what temp the warning led on cbf comes on so am assuming its similar. Ok I know what you're thinking: that's well above boiling point of water, but of course the coolant system is pressurised to around 16 to 20 psi which raises the boiling point due to Boyle's gas laws I think? Don't u just hate a smart-ass boffin lol?!
Title: Re: CBF running temperature
Post by: Robo on 21 May, 2016, 12:06:29 PM
Still pointless.

If I was worried about all the above the temp ain't the problem  :087:

The fan is, I'd wire a switch inline to over ride the fan's relay.

It's the fan that will pack up first. WTF is a gauge going to do  :435: tell you what gear you're in

 :084:
Title: Re: CBF running temperature
Post by: richardcbf on 21 May, 2016, 12:11:57 PM
*Originally Posted by macdoc [+]
That's okay thanks ...I'm happy with the velcro approach. I can also use it as an ambient temp too once I get a feel on the bike temp.
Going out for 3 weeks on the road so any sort of an engine temp gauge appeals without tapping the electronics. Once I have a baseline reading...from cruising speed to slow traffic...I just need to keep an eye on it. I've never seen the heat sensor light come on but then in bright sunlight I could have missed it.

Suggestions as to were to place the sensor welcome. 8' cable so have some range.
Presumably the purpose of the temperature indication is to be able to see a significant change in measurement, not a specific or accurate value. Also, if engine coolant temperature is suitable, then the outer surface (perhaps with some thermal grease and thermal insulation plus overwrapping with foil tape) of the radiator upper hose should do?
Title: Re: CBF running temperature
Post by: Robo on 21 May, 2016, 12:15:12 PM
*Originally Posted by richardcbf [+]
Presumably the purpose of the temperature indication is to be able to see a significant change in measurement, not a specific or accurate value. Also, if engine coolant temperature is suitable, then the outer surface (perhaps with some thermal grease and thermal insulation plus overwrapping with foil tape) of the radiator upper hose should do?


Next thread . I'm fitting a fuel gauge light, indicator  :495:
Title: Re: CBF running temperature
Post by: macdoc on 21 May, 2016, 01:29:14 PM
Nice pics but pointless :431:
I ride remotely as against who ever mentioned London ....the pics are fun and emphasize that and that is exactly where we ran in an overheating problem on the Burgman ....so yeah ....there is a point. Had we continued much futher north it would have escalated into a very costly experience.

If you don't have something cogent to add then refrain from commenting. There is one pointless post in the thread and you made it. If you don't understand then too bad. Richard gets exactly what I'm after..

*Originally Posted by richardcbf

Presumably the purpose of the temperature indication is to be able to see a significant change in measurement, not a specific or accurate value. Also, if engine coolant temperature is suitable, then the outer surface (perhaps with some thermal grease and thermal insulation plus overwrapping with foil tape) of the radiator upper hose should do?

You outlined exactly what I wanted ....a reference point I can refer to and I was thinking upper hose as well for easy access. Foil tape a good idea and we have some thermal paste around for processors.

Meanwhile it's a lovely long weekend, full day riding the backroads coming up and I''ll just have to deal with the temperature angst for another week.  :015:

Listening for a fan or not is useless - I ride with noise suppression and want a visual indicator.
Title: Re: CBF running temperature
Post by: Robo on 21 May, 2016, 01:59:57 PM
*Originally Posted by macdoc [+]
I ride remotely as against who ever mentioned London  :435:have you forgot :462:....the pics are fun and emphasize that and that is exactly where we ran in an overheating problem on the Burgman :430:It's a suzuki scooter  a honda  :112: ....so yeah ....there is a point. Had we continued much futher north it would have escalated into a very costly experience.

If you don't have something cogent to add then refrain from commenting.Piss off, your posts end in arguments and pointess comments  There is one pointless post in the thread and you made it.  If you don't understand then too bad.  :462:Richard gets exactly what I'm after..Far away from a gauge

You outlined exactly what I wanted ....a reference point I can refer to and I was thinking upper hose as well for easy access. Foil tape a good idea and we have some thermal paste around for processors.

Meanwhile it's a lovely long weekend, full day riding the backroads coming up and I''ll just have to deal with the temperature angst for another week.  :015:

Listening for a fan or not is useless -You  Don't know the CBF  you would feel the fan against your leg I ride with noise suppression and want a visual indicator.


Still pointless
Title: Re: CBF running temperature
Post by: gedspeed on 21 May, 2016, 02:20:35 PM
*Originally Posted by richardcbf [+]
Presumably the purpose of the temperature indication is to be able to see a significant change in measurement, not a specific or accurate value. Also, if engine coolant temperature is suitable, then the outer surface (perhaps with some thermal grease and thermal insulation plus overwrapping with foil tape) of the radiator upper hose should do?

The top hose is not a good point to check the temperature overall,  if the thermostat fails then the coolant will not flow through the top hose,  temperature reading will be distorted.

Best is probe fitted near th water jacket on the head.

Ged
Title: Re: CBF running temperature
Post by: Robo on 21 May, 2016, 02:36:26 PM
*Originally Posted by gedspeed [+]
The top hose is not a good point to check the temperature overall,  if the thermostat fails then the coolant will not flow through the top hose,  temperature reading will be distorted.

Best is probe fitted near th water jacket on the head.

Ged

 :0461: but who will dare to fit that, this takes more than sticky tape to fit.

It still will only give you a reading, the fan cools the engine, so Like I said but I've been told its pointless , fitting a toggle switch to activate the fan would do better.How many CBF's suffer from over heating :260:
 :028:
Title: Re: CBF running temperature
Post by: Bifferman on 21 May, 2016, 03:07:03 PM
*Originally Posted by Robo [+]
:0461: but who will dare to fit that, this takes more than sticky tape to fit.

It still will only give you a reading, the fan cools the engine, so Like I said but I've been told its pointless , fitting a toggle switch to activate the fan would do better.How many CBF's suffer from over heating :260:
 :028:


Errrrrr, don't know Gov .................... I guess only those who's fan has misbehaved :015:.  I remember the first case of overheating on here, it was years ago and (I think) it was a loose wire to the fan after someones bike had been in for a service.  A quick reconnection and all was well again.  Has there not been someone in the last year or so who had a thermostat that needed replacing.  All pretty rare though.
Title: Re: CBF running temperature
Post by: richardcbf on 22 May, 2016, 10:56:16 PM
*Originally Posted by gedspeed [+]
The top hose is not a good point to check the temperature overall,  if the thermostat fails then the coolant will not flow through the top hose,  temperature reading will be distorted.

Best is probe fitted near th water jacket on the head.

Ged
Good point, locating the sensor on top hose would also enable a failure of thermostat to be 'highlighted'.  :028:  :007:
Title: Re: CBF running temperature
Post by: SaturnV on 23 May, 2016, 10:10:02 AM
 All good stuff and interesting points / advice and whilst it's a good idea to design systems to be 'fail-proof' (as opposed to 'foolproof' lol) if you take it to extremes you'll run out of dashboard space to put all the gauges not to mention the distraction and 'information overload' trying to read them!

On any liquid cooled vehicle (most of my experience over the years is on cars so far) there are various components in the system that are potential points of failure; e.g. radiator, fan, thermostat, water pump etc., coolant itself and hoses / watertight / airtight connections. If you experience a sudden loss of coolant or de-pressurisation of the system that could also prove catastrophic to the engine and the sensors / gauges may not help much either as they work better at reading water temp not air...

Finally, people are concerned about the lack of coolant temp gauge and the possibility of the warning LED failing but nobody has warned about the possibility of the OIL pressure LED or sensor failing: not enough oil circulation to lubricate / cool an engine is an equally worrying situation...  Should we all fit oil pressure gauges too?!
Title: Re: CBF running temperature
Post by: gedspeed on 24 May, 2016, 08:20:20 PM
*Originally Posted by SaturnV [+]
All good stuff and interesting points / advice and whilst it's a good idea to design systems to be 'fail-proof' (as opposed to 'foolproof' lol) if you take it to extremes you'll run out of dashboard space to put all the gauges not to mention the distraction and 'information overload' trying to read them!

On any liquid cooled vehicle (most of my experience over the years is on cars so far) there are various components in the system that are potential points of failure; e.g. radiator, fan, thermostat, water pump etc., coolant itself and hoses / watertight / airtight connections. If you experience a sudden loss of coolant or de-pressurisation of the system that could also prove catastrophic to the engine and the sensors / gauges may not help much either as they work better at reading water temp not air...

Finally, people are concerned about the lack of coolant temp gauge and the possibility of the warning LED failing but nobody has warned about the possibility of the OIL pressure LED or sensor failing: not enough oil circulation to lubricate / cool an engine is an equally worrying situation...  Should we all fit oil pressure gauges too?!

There could be a built in engine cut out if temp gets too high or loss of oil pressure, if there isn't there should be.!

Ged
Title: Re: CBF running temperature
Post by: SaturnV on 24 May, 2016, 10:02:05 PM
 :460:
True Ged, just as there is a built in cut-out for excess engine speed, i.e. red zone of rev counter...

Unfortunately that's not the case, according to the manual but others may be able to correct that assumption?

Tim

Title: Re: CBF running temperature
Post by: jm2 on 25 May, 2016, 12:15:21 PM
But there is an over temperature warning device - it is the red led light. 

The only real issue is that it goes untested so confidence is low.
Title: Re: CBF running temperature
Post by: Robo on 25 May, 2016, 12:21:34 PM
*Originally Posted by gedspeed [+]
There could be a built in engine cut out if temp gets too high or loss of oil pressure, if there isn't there should be.!

Ged

 :mfrlol: I can tell you that my fan got stuck ,something I did. the bike over heats and boils over via the expansion tank.sounded like a steam pressure cooker on the boil, there is nothing to shut the system down apart from you.
I had just completed the bikes rebuild and was sitting beside it wondering why the bike was overheating + fan rubbing on radiator:028:
Title: Re: CBF running temperature
Post by: gedspeed on 25 May, 2016, 05:03:09 PM
*Originally Posted by Robo [+]
:mfrlol: I can tell you that my fan got stuck ,something I did. the bike over heats and boils over via the expansion tank.sounded like a steam pressure cooker on the boil, there is nothing to shut the system down apart from you.
I had just completed the bikes rebuild and was sitting beside it wondering why the bike was overheating + fan rubbing on radiator:028:

Why the water is boiling the engine is still losing heat, when it's out of water it won't.

Ged
Title: Re: CBF running temperature
Post by: bazza696 on 26 May, 2016, 01:12:35 PM
Don't forget on CBF it has the oil cooled by the radiator water, my VTR has a separate oil cooler, so the oil is being heated by the coolant, and coolant by the oil.
Title: Re: CBF running temperature
Post by: illmor on 26 May, 2016, 05:25:10 PM
I`ve just replaced coolant on my bike. Drained old one, flushed with water and put new one in. Motul Inugel Expert. Comparing to Suzuki RF900 I had for over five years, radiator is around 25% smaller, so I expect engine to run hotter. 7 years difference, so I guess machining tolerances, production process, materials moved on a bit...   Fan does come on fairly often in town, but I`m not worried at all. Once you get to running temp ( about 95 deg ), it just stays there. If they are designed to run like that, let it run like that. My 5p
Title: Re: CBF running temperature
Post by: stergios on 02 June, 2016, 05:43:54 PM
i'm living in a much hotter climate so i experience that fan quite a lot.

as i work at a hella gutmann diagnostic (for bikes  also) dealer so i have one and can check at what temp the fan engages for some more info.

for my everyday use i already  ordered this

http://www.trailtech.net/722-ef6 (http://www.trailtech.net/722-ef6)


so far its the best way of getting that temp reading with no holes ,cutting etc .

it fits in the rad fins watch the installation video.
http://www.youtube.com/user/trailtechinc/videos?sort=dd&view=0&shelf_id=1 (http://www.youtube.com/user/trailtechinc/videos?sort=dd&view=0&shelf_id=1)

and  regarding the diagnostic tool i can make a vid showing at what temp the fan comes on and where it stops .




Title: Re: CBF running temperature
Post by: SaturnV on 02 June, 2016, 06:34:16 PM
 :460:
Be interested to see what results you get regarding running temp variation / range of values...
Title: Re: CBF running temperature
Post by: oznerol on 16 June, 2016, 01:47:39 AM
Fan starts around 212-14 F.
Title: Re: CBF running temperature
Post by: J-man on 16 June, 2016, 08:20:32 AM
For accurate and cheap temp monitoring:
http://www.ebay.com/itm/Digital-blue-led-200-to-450-PT100-Platinum-Resister-Temperature-temp-Sensor-B-/300964146047?hash=item4612dc6b7f:g:00MAAOxyWiRSMNto (http://www.ebay.com/itm/Digital-blue-led-200-to-450-PT100-Platinum-Resister-Temperature-temp-Sensor-B-/300964146047?hash=item4612dc6b7f:g:00MAAOxyWiRSMNto)

(https://images.weserv.nl/?url=i.ebayimg.com/images/g/00MAAOxyWiRSMNto/s-l500.jpg)
12 dollarzz
There are more of that kind on E of Bay
Title: Re: CBF running temperature
Post by: stergios on 04 March, 2018, 02:21:10 PM
my reply is a bit late but here are the working temps

while on the road trashing it or not  anything above 4000rpm keeps it between 75c to 85c

stop for a second or two temperatures reach 99,9 faster than ....well you get the idea. At 100c is where fan kicks in.... sloooowly bringing temp down due to  the tiny radiator honda decided to use.

Perfect bike for traveling just dont stop... or be in a place that its warm....

the brand used si RUNLEADER from aliexpress and i used it with the sensor rl-ts003 that goes in the radiator fins for optimal results (if you own a motocross its pretty common to see such temp gauses). It claims its waterproof.... its not but it can show voltage, time ,and temp. You can adjust and alarm at a preset temperature .
Title: Re: CBF running temperature
Post by: SaturnV on 04 March, 2018, 04:38:19 PM
 :460:   :028:

Better late than never as the saying goes  :001:

May I ask what the power switches are on the left and right?  I guess running lights but could be wrong...

Title: Re: CBF running temperature
Post by: stergios on 04 March, 2018, 09:03:16 PM
the right one was installed by the previous owner for the main beam  but i dont like having to use the throttle/brake hand to access a switch thus i drilled another hole to match the design and used the left one.

for now its a backup switch :)

Title: Re: CBF running temperature
Post by: SaturnV on 04 March, 2018, 09:50:47 PM
 :062:
Title: Re: CBF running temperature
Post by: MohKraats on 07 January, 2020, 06:59:57 AM
Temperature where the thermostat starts opening is 82 degrees C
The fan kicks in just above 100 Degrees C (my case 105)

Checking the system quick and dirty, but simple:
- Start the bike when cold
- Feel with your hand the temperature of the engine, and the temp of the top hose going to the radiator.
- The top hose must remain kind of cold, till the engine gets hot. (thermostat closed)
- Then at some point suddenly you feel the top hose getting hot (thermostat opens)
- A while later the fan kicks in, and must shut down again too after not to long.
- There should be no warning lights during all this.

Doing it more properly, I advise to install a temperature meter, with a sensor in the hose that goes up to the thermostat.
Like e.g. from https://www.aliexpress.com/item/32872167117.html?spm=a2g0s.9042311.0.0.27424c4djpFTtC

(don't bother to try the sensor in the oil drain plug, since that plug is located at the front of the engine and very much influenced by wind and spray)