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02 XR650L Jetting

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The bike has a flat spot at 15 to 20 mph. The bike has cut air box - k/n air filter - XR only full system - drilled and shimmed carb..

XR Only sent me 60 and 170 jets to install. Before my install the bike had 55 and 162 and was worse! Was rough low end unable to idle around the yard ( the bike would surge) and high end 55 mph was flat.

I purchased the bike used about a month ago, now trying to work the carb bugs out.

Is the 60 to small or large? The 170 seems pretty good however looking for suggestions.

Thanks

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yes,the stock needle is to lean for the air box mods.

shimming didnt do anything for lean root/straight diameter.

dynojet kit.

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