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FMF 4.1 and pancake filter jetting

1392 Views 4 Replies 3 Participants Last post by  dylancordell
what jets will i need for running an FMF 4.1 and pancake filter with a stock bore?

it ran fine with just the filter, but wont seem to stay running with the exhaust... just dies after a second...
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How do I shim the needle? And where's the best place to get jets?
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