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Offline Paulturner46

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Trouble starting from warm
« on: 24 November, 2015, 12:36:45 PM »
Hi everyone.
When I start my CBF1000 06 plate is started from cold, it starts with no problem, however if, after a run, I go to start it after 10-30 minutes or so, it can be tricky to start. It turns over fine, but doesn't always fire.
Any ideas what I can check?
Service manual and spanners at the ready.
Thanks
PT

Offline shumba

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Re: Trouble starting from warm
« Reply #1 on: 24 November, 2015, 03:38:57 PM »
 I would first check or replace the obvious such as plugs and air filter.

Offline Slawcbf

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Re: Trouble starting from warm
« Reply #2 on: 24 November, 2015, 04:06:58 PM »
You might want to check the o2 sensor. Had similar problem and after replacing the sensor my bike starts without much fuss. It also improved throttle response and removed annoying vibrations at 3000-3500 rpm. It didn't improved the fuel consumption though.

Offline Robo

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Re: Trouble starting from warm
« Reply #3 on: 24 November, 2015, 05:54:16 PM »
If it is the o2 sensor I would go and red line it before I was to change it as most O2 Sensors soot up.

I would firstly change the PLUGS.

 :028:
If theres a gap i can get through it !!!

Some people pay for an IAM... I am mad.....

Offline richardcbf

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Re: Trouble starting from warm
« Reply #4 on: 25 November, 2015, 11:15:26 AM »
*Originally Posted by Paulturner46 [+]
Hi everyone.
When I start my CBF1000 06 plate is started from cold, it starts with no problem, however if, after a run, I go to start it after 10-30 minutes or so, it can be tricky to start. It turns over fine, but doesn't always fire.
Any ideas what I can check?
Service manual and spanners at the ready.

Thanks
PT

ECT sensor (Engine Coolant Temperature)? or CKP sensor (Crankshaft Position)?
For reference....
Re: Extended cranking when motor is hot
https://www.cbf1000.com/index.php/topic,17403.msg209778.html#msg209778
(No one ever said on their deathbed, "Gee, I wish I had spent more time alone with my computer." Danielle Berry.) http://hmpg.net/

Offline Bifferman

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Re: Trouble starting from warm
« Reply #5 on: 25 November, 2015, 12:44:21 PM »
*Originally Posted by richardcbf [+]
ECT sensor (Engine Coolant Temperature)? or CKP sensor (Crankshaft Position)?
For reference....
Re: Extended cranking when motor is hot
https://www.cbf1000.com/index.php/topic,17403.msg209778.html#msg209778

Nice of Ori to remove all his posts on the subject as it may well have helped PT46.  Just looked at his posts in other threads in his profile and virtually all those have been removed as well :151:.

Offline Biker Mike

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Re: Trouble starting from warm
« Reply #6 on: 25 November, 2015, 12:58:29 PM »
*Originally Posted by Bifferman [+]
Nice of Ori to remove all his posts on the subject as it may well have helped PT46.  Just looked at his posts in other threads in his profile and virtually all those have been removed as well :151:.
If you start now Andy, you might be able to catch him up by the end of the Century.
 :001:
Definitely an 'orible thing to do.

Offline richardcbf

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Re: Trouble starting from warm
« Reply #7 on: 25 November, 2015, 01:09:17 PM »
*Originally Posted by Bifferman [+]
Nice of Ori to remove all his posts on the subject as it may well have helped PT46.  Just looked at his posts in other threads in his profile and virtually all those have been removed as well :151:.
Don't know, but this may be relevant?.....
*Originally Posted by Ori [+]
MAP Sensor Info

Posted by: Ori
« on: 04 September, 2014, 01:31:47 PM »

I had the need to purchase a MAP sensor for my MK1 and found they retail around £200 with the dreaded VAT.

Looking in to this further, I found that many other Honda's use the same part, so I located the following which may be of help.

Part number 079800-7430 or product number 37830-MEL-003

There are some suppliers in the states who sell these for £40, around £70 with shipping and import duty.

I managed to find a used one off a CBR600RR for £35 delivered.

Hope the numbers help somone, all comments welcomed.
and
*Originally Posted by Nuff [+]
Re: HELP ....  LOW REVS
« Reply #121 on: 06 September, 2014, 08:52:21 PM »

Well, if your map sensor is shagged and causing your problems then replacing it would seem a logical plan? For reference Ori needed to replace it as it was causing starting problems when the engine was hot, but it showed up on diagnostics. From your comments I'm still not sure if you actually had diagnostics done or are just going off your technicians gut instinct, but either way why would you NOT replace a faulty sensor?
« Last Edit: 25 November, 2015, 01:13:12 PM by richardcbf »
(No one ever said on their deathbed, "Gee, I wish I had spent more time alone with my computer." Danielle Berry.) http://hmpg.net/

Offline Paulturner46

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Re: Trouble starting from warm
« Reply #8 on: 28 November, 2015, 12:17:37 AM »
Thanks everyone.
Food for thought.
I'll start with the basics and work up from there.
Thanks again.
PT

Offline ian scotter

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Re: Trouble starting from warm
« Reply #9 on: 30 November, 2015, 08:33:08 PM »
Hi Paul. I have a 10 plate CBF1000 and have similar problem. Starts first time when hot or cold but when warm sometimes spins up but doesn't start. Last week for first time it didn't eventually fire up and I had to let her get fully cold and then jump started. Been trying to get her to not start by running her till hot then coming back after half an hour or so but she is playing hard to get and is firing up. If you get a result could you let me know please. Regards, Ian Scotter