I have bought a new de restricted sports exhaust for my speedfight and it was going fine for an hour or so, then i started loosing power. I have been told that my jets in my carb might not be the right size and cant take the power so I want to know what size I should buy,or if there is another problem?
jet up by approx 20, say from a 50 to a 70 main jet but to get max power you'd have to do other work like lighter rollers and remove any restrictors etc, go on the website for these for info.
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