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Need some jetting questions answered please?

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Hey guys Im working on a buddies klr650 and it has a big bore kit, my questions are...

1) what should the stock jetting be?

2) how restrictive is the stock muffler?

3) is there a recomended jetting from the lean factory setting?

Thank you :busted:

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I have a stock 09 KLR and the stock jet was a 142 and the stock muffler is VERY restrictive i put a two brothers slip on exhaust on mine. Seeing as how yours has the big bore i would go with the 170 from dynojet for the main

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Contact the manufacture or the people that did the big bore on the bike. Or go to you local Kaw dealer and learn from your mistakes. Your penance is to live with the mistake until the bike dies.

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