Howdy My 2002 998 starts perfect cold. Leave a bit of choke on…ands it’s solid starter altough if I ride for any more than 5 mins, if I then try and start it…it never does nine times out of ten…. battery’s good, real good. Tick over… Today I put some throttle on whilst attempting to warm start…and that helps.,, Any ideas what could be the issue?
The lever on the LH bar doesn’t operate a choke in the normal sense of the word it’s merely a fast idle lever, basically it holds open the throttle body valves slightly just the same as you could do with the twist grip but saves you having to do so whilst the engine warms up. The a/f mixture for starting is governed by the ecu and feedback it gets from various sensors on the bike. The fact it’s difficult to start when warm or hot makes me think it’s a sensor issue. I don’t have access to a wiring diagram at present but if it were my bike I’d check the wiring diagram for it. Trace the various sensors that feed info to the ecu on engine temp, then check the status/condition of them, are they sending the correct signal. In short, the ecu thinks the bike is cold when it’s not and is putting too much fuel in through the injectors when starting.
Think Paul’s got it there. IIRC there are two thermo sensors on the 998. One for the ecu and the other one is for the fans I think. The connector for the sensor for the ecu is just a simple connector which slides into the top of the sensor. I’d start there.
And take no notice of them saying the problem is it being yellow. The problem is that they can’t accept that yellow is the best colour!
I must say I like a yellow duc. And I like a yellow 911. But I recently saw a yellow Range Rover and it looked absolutely shite! Weird eh??
[QUOTE="bettes, post: 2071767, member: The problem is that they can’t accept that yellow is the best colour! [/QUOTE] Almost but not quite.
It’s a nightmare when the trackers keep going off when i forget to turn the ignitions on when moving them oops
It's the same thing when I open a door on my house and forget I've still got the alarm armed When it happens now, we just call it 'the weekly test'
