CBF1000

CBF1000 => CBF1000 - General Discussion => Topic started by: robinson on 21 September, 2018, 09:07:01 PM

Title: starting problems
Post by: robinson on 21 September, 2018, 09:07:01 PM
hi, has anyone had any starting problems with there cbf ? sometime my bike will start first touch of the button and other times the engine will turn over and over then just manage to start, does  it weather the engine is hot or cold. any ideas what the prob is ??
Title: Re: starting problems
Post by: Slowly on 22 September, 2018, 08:28:25 AM
Happens the same for me. No diffference if hot cold or warm. If sitting for long or for a minute. No idea why
Title: Re: starting problems
Post by: alan sh on 24 September, 2018, 08:14:54 PM
It's generally because it's slightly flooded. I find it happens if:

1. I've turned the ignition on and the off with the kill switch off so the fuel pump runs. That pokes fuel down the inlet and floods the plugs (sometimes).

2. I start the bike from cold and then stop it within about 3 seconds. That pokes loads of fuel (as it's cold) down the inlet and not all of it burns off.

Do either of those scenarios ring a bell?

Alan
Title: Re: starting problems
Post by: jm2 on 25 September, 2018, 12:22:56 PM
(1) kill switch off - as in the switch is set to RUN (as opposed eng stop) ??

- It is always awkward to have a 'off switch' selected 'on' (in this case to kill).
Title: Re: starting problems
Post by: alan sh on 25 September, 2018, 08:55:24 PM
Yes, set to Run. That way, the fuel pump whirrs away when you turn on the ignition.

Alan
Title: Re: starting problems
Post by: Veloman on 26 September, 2018, 08:02:05 PM
Don't ask me why or how as I cant make sense of it but I had exactly the same problem until I changed my "technique" from starting with the side stand down to starting with the stand up. With stand up it starts easily on first press of starter.  With stand down it still starts but only after several attempts, sometimes almost to the point where it seems the battery is getting tired.  Keep meaning to have a closer look at side stand switch and clean but haven't got around to it.
Title: Re: starting problems
Post by: nomadd on 26 October, 2018, 01:28:45 PM
*Originally Posted by Veloman [+]
Don't ask me why or how as I cant make sense of it but I had exactly the same problem until I changed my "technique" from starting with the side stand down to starting with the stand up. With stand up it starts easily on first press of starter.  With stand down it still starts but only after several attempts, sometimes almost to the point where it seems the battery is getting tired.  Keep meaning to have a closer look at side stand switch and clean but haven't got around to it.

Yep, had exactly the same issue. Even tried a new side-stand from eBay. Same issue; bike was a nightmare to start.

In the end, I simply shorted the side-stand pins together at the connector under the fairing. That was 2 years ago and I've not had a problem since.
Title: Re: starting problems
Post by: Piper on 26 October, 2018, 07:27:58 PM
Yep I agree with Alan's comments. Had similar issues in the past now careful to turn the kill switch off if i just turn the ignition on without wanting to start the bike (just checking the mileage for instance).
Pete
Title: Re: starting problems
Post by: spanners on 24 November, 2018, 05:53:29 PM
I've had the same issue with mine, I even changed the crank position sensor. A lot better but occasionally plays silly buggers. It had a phase of starting better when upright but at the mo its fine starting on the side stand. I start it the same way as I have always done (bought new 9 years ago), I turn the key on and wait for the pump to stop then press the button
Title: Re: starting problems
Post by: bocca on 25 November, 2018, 09:38:27 PM
mine turns exactlly 3 times before starting. after a fair amount of riding, that drops to two turns.

I find it odd, as my TDM 4tx starts right up every time. Might have something to do with how FI works? :112:
Title: Re: starting problems
Post by: jack-the-dog-1 on 06 March, 2019, 06:32:46 PM
Hi try putting the side stand up worked with my 2010 cbf1000 John wolverhampton