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I have a 2004 ktm pro senior that is running horrible. I took the carb apart and it looks great and the reeds also look great.so we are thinking its the jetting. It has a 260 and a 60 jet. What size should we get or what else coukd be making it either really rich or to lean.

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You need to do research to find out what size you need given your elevation, humidity, and mods (if any) Don't trust anyone who just says to "go one size up" or whatever. Other things to check are the float level height and the jet needle clip position (if no clips, it could be improperly shimmed). Both of these will have a big effect on fueling. Check your FSM for the appropriate specs.

Posted on Nov 12, 2014

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