FIXED - Bike dies on idle or closed throttle.

[ThatDippyTwat]

Bike is a Roadwin 250fi, essnetially a CBR250R single.

If you let it idle in neutral, it does after 3-4 seconds. If you roll off the throttle it will die when revs get lower, about where you would start to clutch in to come to stop. it's done it the odfd time or two in the last couple of days, but it was particularly horrific tonight in the lashing rain. It happens less when it's hot, but it was thrashed on the way home tonight, in a gear lower than usual, because it kept dying - It was certainly hot.

I'm inclined to think it's the TPS, possibly a bad or soaked connection to it, or it's on the way out. Before I go tearing into it, does anyone have any other ideas?
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'98 VFR800 (touring) - '12 VFR800 Crosrunner (Commuting) - '01 KDX220 (Big Green Antisocial Machine)

[jaffa90]

Sounds like a weakening mixture, what year mileage is the bike and when was the fuel injector last cleaned and checked?

[ThatDippyTwat]

2014, just over 8K, injector never checked as far as I know, but I've only had it for about 1K miles. Until it started doing this a couple of days ago, it was just fine.

I'll see if it's got an intake leak, that's easy enough to test without taking stuff apart.
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'98 VFR800 (touring) - '12 VFR800 Crosrunner (Commuting) - '01 KDX220 (Big Green Antisocial Machine)

[Easy-X]

Just at a complete tangent: how's is the clutch? Could it be that, when warm, it's only say 95% disengaged and the slight drag is stalling the engine?
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Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter

[ThatDippyTwat]

[ThatDippyTwat]

Fixed it .

Sprayed carb cleaner around the intake and no increase in revs. So I took the fairings off, which was a battle in and of itself, to look at the throttle body. There was a touch of slack in the throttle cable, so we adjusted that out, and it no longer dies on idle, or low throttle. The slack was really insignificant, but evidently enough that on the lower stop, it won't feed in enough fuel to idle. It still ticks over at about the same RPM, so we're calling it done unless it plays up again. We'll give it a run tomorrow to make sure.
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'98 VFR800 (touring) - '12 VFR800 Crosrunner (Commuting) - '01 KDX220 (Big Green Antisocial Machine)

[Pete.]

[ThatDippyTwat]