1992 XJ600S won’t rev past 6k rpm

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Warsmit1
New to XJR
New to XJR
Posts: 1
Joined: Tue Apr 18, 2023 12:49 am

My bike runs and rides really good until it gets to 6k rpm then it sputters and won’t rev any higher.

All the carbs are clean.
Fuel pump is good.
I’m not running a fuel filter so it’s not a clogged fuel filter.
Floats are adjusted properly.

I’m losing my mind trying to get this bike running as well as it did when it left the dealership but to no avail.

Anybody got any ideas?

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