Question about 2002 Yamaha YZF-R6
My 2002 R6 is having a little sputter when I crack the throttle wide open from about 6 to 8000 rpm then clears up and winds out great all the way to 14000. Help....
I have the exact same problem on my 02 R6, I installed a factory pro jet kit, micron race mr 400, K&N air filter and I have stutter between 6-8 rpms. I took the bike into the show 4 seperate times to fix this problem and nothing has been solved yet. My plugs are fine, my carb was cleaned, I don't know what else to do.
Posted on Aug 14, 2009
Hi and welcome to FixYa,
Offhand, it would seem to be a slightly lean mix or an airleak.
Check your plugs (color). If very light brown / gray or almost whitish, then it is lean. You can try raising the main needle by a millimeter using shim or small washers to lift the needle. in some versions, the needle would have several grooves where a lock clip could be adjusted.
To determine if it is an airleak, while idling, spray the junction of the airbox cover and body with non-staining carb cleaner. Do the same on the rubber couplers from the airbox to the carbs. If the RPM flutters or increase momentarily, there is an airleak.
Postback results of tests.
Good luck and thank you for using FixYa.
Posted on May 29, 2009
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Posted on Jan 02, 2017
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