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My bike just started revving really high when I was parking it for the night, not red line but still high enough to creep when the clutch is slowly released. Throttle feels ok (not sticky) but I'll try lubricating it. Possible cracked carb boot? Vaccume leak? What could it be and what should I look for?

I'll check more in the am.

Looks like the throttle was sticking on the carb itself seems fine now after I wiggled it a bit. I'll lube up all the cables and moving bits.