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Post Info TOPIC: Revving problem - suggestions please


Veteran Member

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Revving problem - suggestions please
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Have a 1995 OE, have recently noticed that if I 'snap' the trottle open quickly (with the bike standing still & warmed up), the engine splutters & sometimes dies. If I open the trottle normally, every thing is ok, with the engine revving with no issues. This issue is not apparent when riding and doesn't seem to affect anything. Have had carb & airbox apart with no apparent blocked jets, damaged diaphram etc,  changed the air filter, checked the o ring in the inlet manifold, all ok. It still does it when running with the air filter completly removed, Have also changed the spark plug, (which looked ok) but no joy. Have a 147 & 50 jets fitted, do I need to rejet slightly? - or have i missed something??

 



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Senior Member

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Mine does the same, I found that if I just fiddled with the air/ fuel screw( located at the bottom I the carb) it mostly fixe the problem. Worth a fiddle anyway before u start buying new jets and going nuts.

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A dried up puddle is a missed opitunity ;) Melbourne Australia


Guru

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I noticed the same thing the other day so had a bit of a play with the pilot screw, I'm sure you know this but just in case, turn it all the way in till it's just seated, then turn out 1.5 turns, start up and turn it in or out till you get the best result.

As you say, not a problem when riding unless your in really tight single trails, just stay on the gas a bit as you brake and drift into the corner if possible

Hope this helps

Steve



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2004 TTR250 - Highway Dirtbike Hand Guards, 38mm Bar Risers, D606 Front & Rear, Opened up Airbox with Twin Air Filter, Re-jetted Carby, B+B Bash Plate & Frame Guards, DIY 3mm Alloy Tail Tidy, 14/47 Gearing.

 



Veteran Member

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thanks for the advice, I had checked & reset the pilot screw as per the manual (1.5 turns), but will have another tweak, to see if this helps. Maybe the issue has always been there, but I had never noticed it before

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