Muffler Question?
I put a Blue max 16hp engine in my Cushman and bought mandrell bent 1.25 tubing and welded up the head pipe and welded it to a stock muffler off of a 295cc robin engine that has a 1.25 pipe going into the muffler and a 5/8 tail pipe coming out of it. The motor seems to lay down about 2900-3000 rpm. Do you think the stock tail pipe is the bottle neck? I think I can cut the muffler and replace the 5/8 tail pipe with a 1.25 pipe like the rest of the exhaust system. Does this seem reasonable or do you think it will drastically reduce the efficiency of the muffler?? should I do a 1.00" instead??
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