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The TTR250 FAQ web pages -> TTR250 -> Carb stuff -> Surging at part throttle, air leak?
Post Info TOPIC: Surging at part throttle, air leak?
Bran


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Surging at part throttle, air leak?
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Hi all, got my 1994 OE out of winter slumber & it has a sort of surge or uneven running at low/part throttle. Fresh fuel, well warmed up, pulls cleanly(ish) through rev range, ticks over fine. I've had this problem before & nver got to the bottom of it. Bike has snorkel mod, shorty header & exhaust from Steve. I can't see perishing on the rubber tube between carb & head & everything is up tight. Problem there warm & cold but if anything seems worse when warmed up. Checked drive side by running with looser & tighter chain but no significant difference so think it is definitely engine surging. Any thoughts on what to try next? Thanks!



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TTRfan


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Partially blocked pilot jet? Doesn't take much to clog them

Brian



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Exeter, Devon, UK

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Ttboof


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mine never sits very long, but i splash a bit of carby cleaner in the tank occasionally, and don't have to clean the carb with the crap fuel we get these days .

 



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The TTR250 FAQ web pages -> TTR250 -> Carb stuff -> Surging at part throttle, air leak?


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