CBF1000

CBF1000 => CBF1000 - General Discussion => Topic started by: 1madboiler on 01 September, 2014, 09:48:37 AM

Title: Fuel consumption...
Post by: 1madboiler on 01 September, 2014, 09:48:37 AM
A couple of things have struck me regarding fuel consumption. Would an MRA screen and a top box make that much difference to fuel economy? I am averaging 43mpg on my 2008 biffer, mostly commuting 13 miles each way but with the odd blast thrown in, commute is on A roads. I have read the previous posts on this subject but I am going to have to use the bike without the top box to see if it makes that much difference. My best ever tankful was 55mpg and that was a ride out without the top box but 12mpg difference??? I am rotund/pleasantly plump/corpulent (delete as required) and weigh around 15 1/2 stone. I seem to be miles away from what others are getting. Checked for binding brakes etc and everything is ok. The most worrying aspect of this for me is as a yorkshireman.... I am using more petrol than i need to.  :005:
Title: Re: Fuel consumption...
Post by: Biker Mike on 01 September, 2014, 10:20:45 AM
I believe screen and top box make less difference to fuel consumption than the types of roads you ride on.
Motorway blasts are far more likely to burn through your fuel than bimbling along on A's and B's.
 :016:
Mike
Title: Re: Fuel consumption...
Post by: Ossymosis on 01 September, 2014, 11:31:21 AM
*Originally Posted by Biker Mike [+]
I believe screen and top box make less difference to fuel consumption than the types of roads you ride on.
Motorway blasts are far more likely to burn through your fuel than bimbling along on A's and B's.
 :016:
Mike
I'm 19st and have found the opposite. longer runs on the motorway are better for my mpgs than doing shorter runs. I log my fill ups with fuelly and my all time average is just over 44mpg and best is 51.2. short journeys round town kill the mpg figures so if its under 6 miles will take the push bike.

also winter time mpg goes down as it takes longer for the engine to warm up.
Title: Re: Fuel consumption...
Post by: Biker Mike on 01 September, 2014, 12:04:00 PM
Yep, I can see that Os, if you're spending time stuck in traffic rather than making steady progress.
Only yesterday, I was discussing with my daughter how costly and damaging to her car it was to drive two miles to work instead of walking.
 :151:
Title: Re: Fuel consumption...
Post by: phild on 01 September, 2014, 02:40:03 PM
Top box, panniers loaded for touring, avoiding motorways / autoroutes still returns 50 plus mpg on my mark2. The wife's CBF600 does even better.  :028:
Title: Re: Fuel consumption...
Post by: gedspeed on 01 September, 2014, 06:50:45 PM
The most deciding factor is the amount of revs you use and how much twist of the throttle.

I get between 55 and 61 but i tend to use the bike in the 2-3.5k range, when i do pull 4-6k then i get down as low as 45mpg, lower the revs the less fuel.


Ged
Title: Re: Fuel consumption...
Post by: Rev Ken on 01 September, 2014, 07:46:19 PM
At higher speeds wind resistance can have a major effect on fuel consumption. Screens and top boxes however don't contribute as much as, shall we say, a larger outline?....... :164:
Title: Re: Fuel consumption...
Post by: Yunusemrekara RIP on 01 September, 2014, 08:38:27 PM
If oil had a low price, i think, no body wouldn't talk about milage but frequency of fill ups.

Why don't you try LPG  :008: doesn't matter how much cc you got, it's cheeeeap!

http://youtu.be/wF5zViHtLy0 (http://youtu.be/wF5zViHtLy0)
Title: Re: Fuel consumption...
Post by: Biker Mike on 01 September, 2014, 08:43:45 PM
*Originally Posted by yunusemrekara [+]
If oil had a low price, i think, no body wouldn't talk about milage but frequency of fill ups.

Why don't you try LPG  :008: doesn't matter how much cc you got, it's cheeeeap!

Unable to take bikes through the EuroTunnel if they run on LPG, plus wouldn't want to ride on two wheels with something as explosive as LPG directly in front of me. I'd need to rename the CBF, The Hindenburg.
 :018:
Title: Re: Fuel consumption...
Post by: Yunusemrekara RIP on 01 September, 2014, 08:52:36 PM
*Originally Posted by Biker Mike [+]
Unable to take bikes through the EuroTunnel if they run on LPG, plus wouldn't want to ride on two wheels with something as explosive as LPG directly in front of me. I'd need to rename the CBF, The Hindenburg.
 :018:

You got me Mike. :028:

Biffa is a sporty bike with a 1000cc detuned Fireblade engine, what do you expect?

It's funny to talk about for 4-5 miles in average. Is it because of touring screen, is it about twisting throttle?  :004:

You can fly with Hindenburg or you can ride NC700 for economy.
Title: Re: Fuel consumption...
Post by: edger on 02 September, 2014, 10:19:53 AM
Not to sure about mileage but I know that a sunday hoon will empty the tank in around 150 miles.
Almost ran out last week ,the gauge  is rubbish  I/4 full to empty in the blink of an eye,
Just made it back, when I stopped on a down hill junction she cut out as the petrol sloshed away from the pump.
Managed to limp to the PUB though so it could have been worse :001: :001:
Title: Re: Fuel consumption...
Post by: gedspeed on 02 September, 2014, 08:45:24 PM
*Originally Posted by edger [+]
Not to sure about mileage but I know that a sunday hoon will empty the tank in around 150 miles.
Almost ran out last week ,the gauge  is rubbish  I/4 full to empty in the blink of an eye,
Just made it back, when I stopped on a down hill junction she cut out as the petrol sloshed away from the pump.
Managed to limp to the PUB though so it could have been worse :001: :001:


Mental note, if this bike comes up for sale avoid  :008:


Ged
Title: Re: Fuel consumption...
Post by: phild on 02 September, 2014, 10:34:25 PM
I'm not sure about the average miles per litre gauge on my MK2.

I've decided not to reset it after every refuel, I'm now averaging 13.1 miles per litre............that's a whopping 262miles per tank!! Although today me and my wife did about 160 miles, her CBF600 took 12.99litres and mine took 13.4 litres.

In view of these figures, I'm not sure how I'd need to ride to get just 150 miles to a tank. :125: :001:
Title: Re: Fuel consumption...
Post by: edger on 03 September, 2014, 08:18:05 AM
I may have miscalculated the amount of petrol in the tank to start with ,
But every thing else stays the same ,I wish the tank came with a reserve tap .
Title: Re: Fuel consumption...
Post by: Bifferman on 03 September, 2014, 09:02:03 AM
*Originally Posted by edger [+]
I may have miscalculated the amount of petrol in the tank to start with ,
But every thing else stays the same ,I wish the tank came with a reserve tap .

Ah well, it doesn't, but I have a spare bamboo cane in my garden shed for dipping the tank if that helps  :008: .
Title: Re: Fuel consumption...
Post by: NeiljohnUK on 03 September, 2014, 03:48:22 PM
The Mk1 is a heavier drinker than the Mk2, which makes sense as they refined the mapping and the criteria from governmental requirements changed. My baby BMW's fuel map is actually dangerous at low speed, close the throttle and the total fuel cut stops the engine dead at low revs, BMW updated the map, but UK main stealers won't install it if they can avoid it... In the USA you only have to ask, class action litigation focusing the corporate mind me thinks.

Back to Biffers, my Mk1 does ~10 miles to the Litre, large rider, large screen, top-box, add the panniers and it drops even more.

Addendum: Talking to my observer for the day yesterday he's also suffering the fuel cut issues on an R1200RT, seems BMW have issues across the ranges, going by the Booster Plug testimonials even on the 4 cylinder models...
Title: Re: Fuel consumption...
Post by: edger on 03 September, 2014, 08:28:57 PM
BAMBOO CANES!!  just had a flash back to my boarding school days :005:
Title: Re: Fuel consumption...
Post by: applecross on 04 September, 2014, 02:10:09 PM
I have no idea what my MPG is.  I ride entirely for pleasure and on lovely twisty, hilly and fast roads.  I'm sure everyone is getting better MPG than me but what the hell I enjoy the blast :001: :001:
Title: Re: Fuel consumption...
Post by: selva1055 on 07 September, 2014, 03:59:56 PM
hi, not sure if this adds to the confusion. I used to have a 14 mile each way commute through light traffic on minor roads, lots of junctions and averaged 42-43mpg ridden through last winter and up to May. Now doing a 55 mile each way, heavy traffic ( 20 - 50 mph) motorway 5 miles (M25),  at around 70 (4500 - 5000rpm) for 45 miles (A3) then a bit of minor road, averaging 52-55 mpg, scenic route home occasionally stopping at Loomies, still gives 53-55. Always have top box with stuff for the office and sometimes stick a side pannier. Tweaked screen height to get buffeting down and now only the helmet collects the bugs.
Title: Re: Fuel consumption...
Post by: edger on 07 September, 2014, 08:35:05 PM
3/4 full to just on the red in 100 miles ,
no idea how much this is but it was a nice Sunday morning out :002:
Title: Re: Fuel consumption...
Post by: phild on 07 September, 2014, 08:54:59 PM
Still averaging 13 miles to the litre.......touring at the moment but using twice as much.......the wife is following me on her bike and I'm paying for the fuel! :006:
Title: Re: Fuel consumption...
Post by: Toydepartment on 08 September, 2014, 11:35:58 PM

Ive done quite a few trips on my old '98 Blade with people on fuel injected bikes. My Blade would always use less fuel for the same speed/distance than the others with FI. The blade was fitted with a stupidly short straight through can, dynojet kit and K+N then set up on a dyno at 122RWHP. So it was not standard. My Brother had an FI SRAD 750, the blade would use at least a litre less fuel for the same distance/speed. Which was about 110-120 miles at 80 - 85mph on motorways. I thought it was normal, its one of the things I think about (ok, very briefly) when buying a new bike.
Title: Re: Fuel consumption...
Post by: Westbury71 on 09 September, 2014, 11:02:43 AM
Ive done nearly 3000 miles on my MK1. Worst MPG was 48, best just under 54. Mainly I acheive an average 52, which I am very happy with.  :062:
Title: Re: Fuel consumption...
Post by: applecross on 09 September, 2014, 11:37:30 AM
We've got 13 miles to the litre, 48 miles to the gallon.  Has anybody got kilometres to the gallon? :187:
Title: Re: Fuel consumption...
Post by: smiler66 on 09 September, 2014, 11:52:35 AM
Hi

1.6 kilometers to 1 mile.

 :152:
Title: Re: Fuel consumption...
Post by: alan sh on 09 September, 2014, 12:18:04 PM
*Originally Posted by applecross [+]
We've got 13 miles to the litre, 48 miles to the gallon.  Has anybody got kilometres to the gallon? :187:

13 miles per litre is 59 mpg (UK gallons)
Title: Re: Fuel consumption...
Post by: phild on 09 September, 2014, 09:14:11 PM
Working in Kms at the moment.

20.4kms to 1 litre........well that's what my bike is telling me. :002:
Title: Re: Fuel consumption...
Post by: jonl on 10 September, 2014, 12:13:37 AM
I have recorded all my fill-ups since new:

5.39   L / 100 km   

43.6 MPG (US), so low '50s in Imperial gallons

I am pretty steady, slow rider, RPM mostly in the 4,000-6,000 range, with occasional bursts above the speed limit.  Saturday's top speed per GPS would have led to impounding the bike and suspension of the license.
Title: Re: Fuel consumption...
Post by: Spanners62 on 10 September, 2014, 09:23:01 AM
I have to confess to being one of those really sad people who records everything.
The best I ever had on a Mk1 was 67mpg over a tank. This was a complete outlier and was achieved bimbling through the Ayrshire countryside with full paniers and a 92kg me on board on one of those beautiful dry days that are so rare up there it has been known for a public holiday to be declared when the sun appears (I can say that; my spiritual home is Prestwick). I have never had anything close ever since.

My Mk11 rarely returns less than 55mpg, never more than 59mpg. Most of my riding is commuting, 7 miles winding 50mph back road, 60-80mph dual carriageway for 12 miles and a couple of miles of town riding at each end. Always with a top box and my 92kg, 6'1" body on board.

It turns out I have been riding with a faulty Exhaust Gas Control Valve so it will be interesting to see what happens when I get that sorted.
Title: Re: Fuel consumption...
Post by: pt151 on 12 September, 2014, 12:45:18 PM
My first post.  Picked up an 09 Mk I last Saturday.  I had an 04 CBF600 until a few months ago.  I haven't checked the economy yet but thought I would mention a slight issue in measuring economy.  When the tank looks nearly full and the pump cuts out, it is still possible to get in another 1.5 ltrs or so at a dribble.  On my 600, I ran it dry, added a cupful from the container I had in the top box and then managed to get over 20.2 litres in the tank at the nearest garage.   Honda quoted that CBF600 at 19 litres tank capacity and I think the Mk1 1000 at 19.4 l - looks like the same tank though.  Obviously for accurate mpg measuring its necessary to refill the tank to a consistent level.
Title: Re: Fuel consumption...
Post by: applecross on 12 September, 2014, 01:41:11 PM
 :028:That's a great point about filling the tank.  I go on some longish runs around the Highlands and filling stations are few and far between.  I've been amazed at how much extra you can get into the tank by just dribbling it in.  Of course if your not going to ride the bike straight away its not a good idea to fill the tank completely, change in temperature could have it overflowing.  However if your just setting out you'll use the extra before you have a problem.  Anybody got the filling stations and cafes mapped in the Northern Highlands?
Title: Re: Fuel consumption...
Post by: Biker Mike on 12 September, 2014, 01:47:54 PM
Now, if I try and fill my Mk.II beyond the collar just below the filler lid, any further fuel just flows out the pipe near the swing arm pivot, so no point attempting it.
Title: Re: Fuel consumption...
Post by: applecross on 12 September, 2014, 01:59:43 PM
That's what I meant by overfilling it and overflowing.  You just explained it better than I did.
Title: Re: Fuel consumption...
Post by: Flying Fox on 12 September, 2014, 05:23:49 PM
Got back last week from a 4 day Scots tour, averaging about 52 MPG, not hanging around - OK, I admit it, hooning it most of the time and making plenty of progressive overtakes. That was even with topbox, panniers, tankbag and tent. However.... most of the running was at fairly constant speed in the mid rev range and modern engines give good fuel consumption under such conditions. Having said that, my Triumph triples would average 55 MPG under those conditions, despite having engines giving 10% more power. Perhaps the catalytic converter is the villain there?
Title: Re: Fuel consumption...
Post by: sfd63 on 12 September, 2014, 06:48:13 PM
More power will mean less throttle to achieve same speed so less fuel being used.
Title: Re: Fuel consumption...
Post by: The Fitz on 12 September, 2014, 07:26:09 PM
Hi All, I did a run last summer on Motorways, 80mph (ish) two up, topbox full and tank bag. Filled the bike with petrol that morning and at 191 miles ran out of fuel.... :019:
So I now say the range of the CBF is 191. I know I can get better on back roads (A and B roads) etc. See below my typical MPG.

29/03/2013   49.68      
03/04/2013   43.47      
27/06/2013   45.24      
21/08/2013   51.32      
14/09/2013   44.98   19.3l = 191 miles. Ran out of fuel outside Cork. 95% motorway    
31/05/2014   53.55   16.47l = 194 miles??? Run N52 to Blackrock, Co. Louth.

It just goes to show MPH is complex!!!

Title: Re: Fuel consumption...
Post by: jonl on 12 September, 2014, 07:33:30 PM
I don't believe tank-to-tank mileage is important, nor accurate.  Too many variables, including how level is the bike, how full you fill it, quality of the fuel, ambient temperature, how flat or hilly the terrain, stop-and-go vs. cruising, how much one is carrying, luggage on or off, and whether on a particular day one feels the need to spank it up to 8,000 RPM vs. puttering along at 4 or 5,000.

I track mine in a spreadsheet, so using all the miles traveled / all the gas purchased, I get a lifetime average, which gets more accurate as the # of fill-ups increases.

I'm no expert, but I try to never run a fuel tank really low when the fuel pump is inside, thinking the pump may overheat and fail sooner.  I think the most mileage I have done on a tank is just over 300 km (maybe 190 miles).
Title: Re: Fuel consumption...
Post by: Montblanc on 12 September, 2014, 08:03:44 PM
Rode about 400 miles in the last 3 days and got 55 mpg - mix of highway (25%), town (25%) and mountains (50%) -- very pleased with the result. I usually top up at about 180 miles on the tank and don't rely on the gas gauge. The gauge seems to have a mind of its own. Holding the top bars for a long time or rapidly going down - from what I read here that is normal.
Title: Re: Fuel consumption...
Post by: edger on 16 September, 2014, 08:23:46 PM
Wales today Aberystwyth, Lampeter, llandovery Builth Wells and home again to Shropshire
194 MILES on one tank of petrol, the needle was above the full mark  its now on the bottom of the red zone.
I should really take some cash out with me!! :003:
On the upside I managed to make it back to the pub and get a pint on account :001:
Title: Re: Fuel consumption...
Post by: Montblanc on 16 September, 2014, 08:30:36 PM
Another few hundred miles and holding steady at 55mpg on 2012 CBF 1000 which equates to about 230 miles from full to empty. Mix of mountains, highway, country roads and as little city driving as possible.
Title: Re: Fuel consumption...
Post by: Markytp on 16 September, 2014, 09:25:01 PM
I'm getting between 130 and 150 miles on a full tank on a 2008 biffer.
Title: Re: Fuel consumption...
Post by: sfd63 on 16 September, 2014, 09:37:09 PM
130-150 that dont sound good!!!! you ragging the backside off it? LOL
Title: Re: Fuel consumption...
Post by: Markytp on 16 September, 2014, 09:47:15 PM
*Originally Posted by sfd63 [+]
130-150 that dont sound good!!!! you ragging the backside off it? LOL

No, the opposite. Commute into work everyday, 15 miles each way, average speed 20-30 mph.

Then on a weekend it gets ragged lol.

I always fill up just as the gauge hits the top of the red bit, so there will be more mileage depending on how far you can go on the red  :001:
Title: Re: Fuel consumption...
Post by: alan sh on 17 September, 2014, 07:16:33 AM
Sounds ok to me.  You have 40 miles left when it hits the red.
Title: Re: Fuel consumption...
Post by: Markytp on 17 September, 2014, 07:17:35 AM
*Originally Posted by alan sh [+]
Sounds ok to me.  You have 40 miles left when it hits the red.

Thank you Sir!
Title: Re: Fuel consumption...
Post by: edger on 17 September, 2014, 08:12:18 AM
Mind you  doesn't the red sector disappear quickly when your miles from a garage :mfrlol:
Title: Re: Fuel consumption...
Post by: Montblanc on 17 September, 2014, 09:30:42 AM
For the MK II with the electronic gauge what kind of warning does it give and does that also mean 40 miles left?
Title: Re: Fuel consumption...
Post by: Westbury71 on 17 September, 2014, 10:10:45 AM
*Originally Posted by edger [+]
Mind you  doesn't the red sector disappear quickly when your miles from a garage :mfrlol:

Nothing brings about saintly riding like a rapidly falling fuel guage!

Out of interest (or not!), at the weekend I was at a fuel station and had left my wallet at home. I only had my 'emergency' 10 note, so decided to just put a gallon in to get me back home. After adding just 4.58 litres (6.00), the guage went from bottom of the red zone to just under half full!
Title: Re: Fuel consumption...
Post by: Biker Mike on 17 September, 2014, 11:21:01 AM
*Originally Posted by Montblanc [+]
For the MK II with the electronic gauge what kind of warning does it give and does that also mean 40 miles left?
Once you're down to your last 4 litres, the gauge begins a count UP in tenths of a litre.
Once you'e down to nothing, the engine cuts out.
 :001:
Title: Re: Fuel consumption...
Post by: Montblanc on 17 September, 2014, 12:27:29 PM
Shame about that last part! Will try to avoid ...
Title: Re: Fuel consumption...
Post by: squarepeg on 17 September, 2014, 06:49:29 PM
Got my mk1 in April this year and have recorded fill ups in an app on the phone. Best mpg is 57.6, worst 40.4 with an average of 51. So I'm happy. Try and fill to the bar in the filler neck each time.
Title: Re: Fuel consumption...
Post by: Markytp on 17 September, 2014, 09:43:24 PM
I don't have a bar in my tank  :110:
Title: Re: Fuel consumption...
Post by: Spanners62 on 18 September, 2014, 07:08:10 AM
Regarding the Mk11 fuel gauge, surely someone in Honda development was having a laugh.

They state the reserve is 4l. So once the bar starts flashing we should have 4l left (am I reading this right or should I switch my brain on?).
The gauge then counts up to 1l which should be around 11-13 miles, depending on your riding style.
My experience has been that the gauge then starts flashing rapidly. I did another 5 miles before I chickened out and filled up but in theory there should still have been around 2.5 litres left in the tank. (How am I doing so far? I got kicked out of Glasgow Uni because my maths was so bad).
At that point he instruments said I had used 17.0 litres (is this calculated from throttle position?) so in theory it is saying there were 3 litres left. So 3l as stated by instruments, 2.5 estimate . . . numbers are near enough.

Now my point is,  I can't believe there is more than two litres unusable fuel in the tank. If so surely advertising the tank as of 20l capacity is disingenious.
Am I wrong?

Has anyone run the bike to see how much of the 20l is actually usable?

The gauge is a joke, though. Once it starts flashing, if you you go down a hill it resets; if you take a shap bend it resets, if you brake hard it resets and if you put the bike on it's stand it resets. We're dealing with a mechanical gauge here so without multiple, cross linked, highly damped sensors everything is just an estimate.

Right, I'm off to my other thread to have a rant about engine lights and Honda service.


Title: Re: Fuel consumption...
Post by: richardcbf on 18 September, 2014, 07:40:53 AM
*Originally Posted by Spanners62 [+]
Regarding the Mk11 fuel gauge, surely someone in Honda development was having a laugh.

They state the reserve is 4l. So once the bar starts flashing we should have 4l left (am I reading this right or should I switch my brain on?).
The gauge then counts up to 1l which should be around 11-13 miles, depending on your riding style.
My experience has been that the gauge then starts flashing rapidly. I did another 5 miles before I chickened out and filled up but in theory there should still have been around 2.5 litres left in the tank. (How am I doing so far? I got kicked out of Glasgow Uni because my maths was so bad).
At that point he instruments said I had used 17.0 litres (is this calculated from throttle position?) so in theory it is saying there were 3 litres left. So 3l as stated by instruments, 2.5 estimate . . . numbers are near enough.

Now my point is,  I can't believe there is more than two litres unusable fuel in the tank. If so surely advertising the tank as of 20l capacity is disingenious.
Am I wrong?......
When you 'filled up' how many litres (as indicated by the fuel station 'pump') was needed to do so?

*Originally Posted by Spanners62 [+]
Regarding the Mk11 fuel gauge, surely someone in Honda development was having a laugh.....

...The gauge is a joke, though. Once it starts flashing, if you you go down a hill it resets; if you take a shap bend it resets, if you brake hard it resets and if you put the bike on it's stand it resets. We're dealing with a mechanical gauge here so without multiple, cross linked, highly damped sensors everything is just an estimate....
What do mean by 'resets' and which indicated value is that, e.g., Real-Time fuel consumption rate or Reserve consumption totalised?
Title: Re: Fuel consumption...
Post by: Montblanc on 18 September, 2014, 07:57:26 AM
I ran mine down yesterday to the flashing reserve and refilled when .5 was on the gauge. I got 14.5 liters in the tank filling it to the bar with it leaning on the side stand which means in theory that I can account for 18.5 liters (14.5 + .5 + 3.5). Am interested to hear the experience of others.
Title: Re: Fuel consumption...
Post by: Spanners62 on 18 September, 2014, 09:55:41 AM
#Richard.

When I refilled the tank took 17.45 litres on sidestand (as per manual) absolutely brimmed (strictly not as per manual).

By reset I mean that if the fuel load shifts when you are counting up the litre, it can reset the count to zero. For example, I have the South Downs as part of my journey home. The reserve display could read 0.9l as I hit the decent into Falmer. At that point the fuel load in the tank shifts relative to the sensor and the display indicates the last average until I level out at the bottom of the hill at which point the reserve starts counting up from 0 again.
When I say the instruments indicated that I had used 17 litres I am referring to the fuel used page on the right display, the one after average consumption. I imagine this is calculated from the same data as the instantaneous and average consumption. I have to say that I have found that particular reading to be impressively accurate.
Title: Re: Fuel consumption...
Post by: Biker Mike on 18 September, 2014, 12:05:36 PM
I took my MkII (just me and a lightly loaded 52 litre Givi Maxia 3 top box) for a 306 mile fast but legal run from Poole across to Talgarth on the Northern edge of the Brecon Beacons National Park and back again last Wednesday and achieved 12.39 miles per litre (based on a top-up before, in-between and after, using a total of 24.73 litres of fuel).

That works out at 56.3 mpg, which I'm quite happy with considering the amount of M4 and A449 covered on the run.

Mike
Title: Re: Fuel consumption...
Post by: Spanners62 on 18 September, 2014, 12:22:58 PM
 . . . and I meant descent, not decent . . . .dyslexic keyboard.
Title: Re: Fuel consumption...
Post by: applecross on 18 September, 2014, 12:36:57 PM
I've never know so much discussion over one subject.  :138:  Does anyone think this is getting a little geeky now.  What the hell, rob your children's piggy banks, steal your partner's money or give up the fags, just get the tank filled and get out on the road!
Title: Re: Fuel consumption...
Post by: richardcbf on 18 September, 2014, 04:03:40 PM
*Originally Posted by applecross [+]
I've never know so much discussion over one subject.  :138:.....
I guess you don't use a TV or Radio cos my mother in law told me yesterday that one subject has had so much coverage for the last month or so that she may give them completely up in favour of her audio books and shortbread which is here only (begrudging) conscious consumption of anything Scottish!  :007:
Title: Re: Fuel consumption...
Post by: applecross on 19 September, 2014, 11:42:18 AM
Without wishing to get too political I know it was on the news a lot but it was a big deal.  However I was confident the good sense of the Scots would prevail and it has.  Over 85% voted that's passion and commitment not seen in politics in the UK for a long time.
Title: Re: Fuel consumption...
Post by: Devonisjustthebest on 19 September, 2014, 01:04:26 PM
I agree with applecross, I just ride for fun and the MPG in unimportant, I agree with the comment about the inaccurate fuel gauge though very poor!!!

When mine gets down to 1/4 I take no chances and fill up pretty quickly.

If MPG was important I'de go and buy a TDM or something much smaller!

Neil
Title: Re: Fuel consumption...
Post by: richardcbf on 19 September, 2014, 01:11:08 PM
*Originally Posted by Devonisjustthebest [+]
I agree with applecross, I just ride for fun and the MPG in unimportant, I agree with the comment about the inaccurate fuel gauge though very poor!!!

When mine gets down to 1/4 I take no chances and fill up pretty quickly.

If MPG was important I'de go and buy a TDM or something much smaller!

Neil
I'm the same, but for some riders the CBF1000 is their only/main daily transport, so concern about mpg is understandable, as per the opening post in this topic.
Title: Re: Fuel consumption...
Post by: Devonisjustthebest on 20 September, 2014, 09:46:24 AM
Sorry, Point well made!
Title: Re: Fuel consumption...
Post by: Montblanc on 20 September, 2014, 10:18:48 AM
I just like to measure stuff - average speed, performance of any kind, efficiency, etc. - must be the "inner engineer" trying to be heard.
Title: Re: Fuel consumption...
Post by: Steve T on 05 April, 2015, 05:10:14 PM
Thought I'd add my tuppence to this long deceased thread.

Only had the CBF for a month and 700miles (got another steed to add miles to as well  :016:).

Thrapping along, or, as some would say, making progress  :007:, on twisty A & B roads that abound in this corner of the island, I got a little over 49mpg.

Just today, with the boss on the back for the first time on this machine - over 53mpg along the same route.

Seems to me that this machine is so laden with torque that it matters little how I ride, I still get a good return for my money from this litre machine  :046:  :152:

I personnally use the fuel consumption as an indication of the bikes health, taking into consideration the style of riding / route travelled of course.

End of my tuppence worth - moving on  :015:

Steve T

 :018:
Title: Re: Fuel consumption...
Post by: Josiah on 06 April, 2015, 08:03:23 AM
Been reading this looongggg thread, :006:
On my mk1 24000 miles taught me to ignore the fuel gauge and to be safe I'd always fill up at about 150 mile using the trip.
On my mk2 and only 1600 miles I'm beginning to have doubts about the fuel gauge  :087: so I'm back to using the trip again and filling up at about 150 miles.

One thing I've not seen mentioned is atmospheric conditions which always used to affect engine performance, slightly damp air and the engines always seemed to produce more power which would give better mpg.

Me I don't care I just ride these days for pleasure I just don't want to run out of fuel.

Josiah ( still )  :125: ( and now kneeds more koffy )
Title: Re: Fuel consumption...
Post by: alan sh on 06 April, 2015, 10:14:14 AM
On my MK 2, I reset the trip each time I fill up, but then I use the "amount of fuel used" display to see how much I've got left (it's a 20 litre tank, so easy to work out). Its pretty accurate.

Alan
Title: Re: Fuel consumption...
Post by: Rev Ken on 06 April, 2015, 10:20:23 AM
*Originally Posted by alan sh [+]
On my MK 2, I reset the trip each time I fill up, but then I use the "amount of fuel used" display to see how much I've got left (it's a 20 litre tank, so easy to work out). Its pretty accurate.

Alan

Huh, we MK1s have to use more brain power to work out how far we can go! :016: (I remember the days when I used to use a stick to dip the slab petrol tank on my car!)
Title: Re: Fuel consumption...
Post by: Brit182 on 06 April, 2015, 01:07:11 PM
I use the "amount of fuel used" display

Some kind people on the forum told me how to set this up a while back and I found it pretty useful. Until I pressed the wrong button a few weeks afterwards and the computer reset itself back to the rolling display of how many litres were disappearing as I went along. Since then like Josiah I have stuck with the old method of seeing how many miles have gone by.

May dig out the thread later and have another go at the techno option. Used run corporate IT systems back in the day, so I really shouldn't be beaten by a jumped up digital clock! :008: