LOUD backfire!!! Hawk 250 - ChinaRiders Forums

01-17-2017, 08:23 PM	#1
hnu13 Join Date: Oct 2015 Posts: 66	LOUD backfire!!! Hawk 250 bike has a very loud backfire on deceleration.. - Mods - stock pz30 carb 0.5mm overstock pilot jet 115 main jet needle raised +2 mixture screw about 1 1/4 out POD filter spark arrestor out baffle drilled out (about 8 holes) cat removed any ideas????
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