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Rough idling on cold starts
#1
Hello all, wondering if any of you could help meĀ  Smile

My fazer doesn't like idling when it first starts up, even on a day like today, 18 degree's and I can just start it and let it idle, I either have to put a tiny bit of choke on or giving it a few blips of revs when it sounds like its about to die, the idle starts at about 1050 and if I leave it, it will work it way down to around 600-700 before it cuts out.

I've noticed that the down pipes from cylinder 3 + 4 seems to take longer to warm up than the other 2, I know electrical problem tie 1+4 and 2+3 together so I've ruled that out (correct me if I'm wrong)

Once it's up to running temp she idles nice and steadily at 1.2k, no dropping in revs or wanting to cut out

So my best guess is the valve clearance on cylinder 3 + 4 may be too loose, and when it warms up the expansion of the valve creates a better seal hence idling fine once up to temp?

27,000 miles on the engine, not sure if the clearance has ever been adjusted before.

Just looking for some second opinions before I go ahead and strip her down, I've got a Haynes manual and it seems very long winded, does anybody else have a simpler way to get at the valves to shove a feeler gauge in?

Thanks, Louis.
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Messages In This Thread
Rough idling on cold starts - by Louis101993 - 01-09-12, 02:41 PM
Re: Rough idling on cold starts - by red98 - 01-09-12, 03:24 PM
Re: Rough idling on cold starts - by darrsi - 02-09-12, 02:41 AM
Re: Rough idling on cold starts - by AdieR - 02-09-12, 08:21 PM
Re: Rough idling on cold starts - by darrsi - 02-09-12, 10:27 PM
Re: Rough idling on cold starts - by darrsi - 03-09-12, 06:25 AM

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