Ranger-692
ArboristSite Member
25” with skip but runs a full comp just fine as well, just wanted less to file.
Did the mtronic take care of the carb, or did you have to do a reset?Empirical evidence tells me the straight shot on my 400 is a good thing. More power immediately.
So you want the muffler inside area as large as possible to recieve and relieve the compressed gass from the cylinder.
The outlet should ideally be about one inch in diameter at 70cc, you do the math, thats about 33% of the cc.
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