evolution 46 tuning help

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04-20-2008, 12:05 PM

weldercde

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evolution 46 tuning help

I put my evolution 46 on my tribute. I can get it tuned on the ground at full throttle but when I pick the nose straight up it starts to serge. So I tune it again and get it to running good both ways on the ground, but after take off it starts to serge. I put a new A-3 plug in it and a tower muffler on it. Need help

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04-20-2008, 01:45 PM

JustErik

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RE: evolution 46 tuning help

It sounds like an air leak somewhere. I would carefully check and/or replace all the fuel line, including inside the tank.

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04-20-2008, 03:52 PM

blw

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RE: evolution 46 tuning help

Good choice in plugs and muffler!

The fuel line from the remote needle valve to the carb is the first thing I would replace. Is the carb tight in the crankcase?