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Post Info TOPIC: Popping on deceleration/overrun


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Popping on deceleration/overrun
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Ive recently replaced the lower carb o-rings, seal and diaphragm and set up the carb with 50 pilot, I think 142 or 147 main (couldn't read clearly) with pilot screw 2 turns out,  twin air filter (snorkel still present) and dominator end can. It starts up almost immediately but the popping on the overrun seems a bit excessive when using engine braking, clutch in deceleration is a lot less obtrusive. 

Is this common or should I be looking at a smaller main jet? Don't really want to pull the carb out again if i don't have to. 

Bike seems to pull ok and will lift the front from standstill if setting off a little enthusiastically



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2005 TTR-250



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Sounds to me like it's running a bit lean from the Dominator end can.

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mossproof wrote:

Sounds to me like it's running a bit lean from the Dominator end can.


Looks like you could be right as after I rode it for a bit more i noticed ithe popping was at its worst at low speed/rpm so I started playing with the pilot screw. It appears better with a bit of a richer mix (around 2.25/2.5 turns).

 

Cheers 



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2005 TTR-250



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Good news  smile



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