Question about 1998 Aprilia RS 250
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Posted on Jan 02, 2017
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Hi, What Fuel/oil ratio are using?
I'd strongly suggest 40:1 with fully synthetic 2T oil and
How is the bike's compression? It should be165-215PSI. If
it is less than this install new correct size piston and rings and use new gaskets.
If the bike is still splutter and blowing lots of smoke then raise the main jet needle by one notch.
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