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Mind of it's own over 10krpm

Posted: Thu May 17, 2018 4:02 pm
by JBFZXR400L5
Runs perfect up to 10k. If i drop it in 6th and pull from 6k rpm it will go over 130mph and hit the red line no worries. If I drop it down a few gears so it's sitting at 10k rpm and then pull hard the bikes revs skips all over the place from 10-14k rpm. Changing gears up there is a nightmare I don't know if I've changed up or not because of the revs going crazy. Any ideas? Cheers.

I never had this issue before the bike went in the garage a few days ago to sort out some electric issues...rode it yesterday and noticed it. Coincidence?