Question about 1998 Aprilia RS 125 Extrema
You have upset the air fuel flow by changing the exhaust, I would try placing a piece of paper over the air filter to change the intake first, to see what happens, then if that doesn't work, you will need to rejet, and sometimes the factory setting won't work, so you will need an adj jet, Find an aftermarket for your carb I think dyno tune has one. They work great. I hope this helps.
Posted on Apr 06, 2010
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Posted on Jan 02, 2017
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