muffler mod and carb adjustment on ms290


New Member
Mar 22, 2012
hey guys im new to chainsawin. i have a ms290 with like 3 hours on it but it needs more go. so my question is how do you adjust the carb, and how big do you make the holes on the muffler


Well-Known Member
Jan 10, 2012
Is the question, how to remove the limiter caps or how to generally adjust a carb? I just drilled a couple holes under the deflector on mine. 5/16 I believe.
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