Re: PA 50 II jet

Joe Woods /
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it's a #78 .. and if the bike is in good tune this carb/jet combo works fine. And the main jet/butterfly carb will accurately flow a lot more mixture than the stock machine will ever demand.

It'll be adequate up to about 40mph, near 7,000 RPM, which should happen if you pump up the engine with an expansion chamber or other performance mods.

Beyond that point you might want to do something to avoid running a bit lean.

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