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Trx 250r jetting


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Any porting?, Elevation, What size dome?, What carb?

I would start with the needle in the middle clip position. Would most likely start with a 168 Main. That should be pretty fat. Then incrementally jet down until the blubbering clears up at wot. Then I would adjust the needle for proper 1/4-3/4 throttle operation.

The above is based on the assumption a 38mm pwk carb is used.

Edited by CQR
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