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strange fueling issue
Posted: December 1st, 2014, 5:11 pm
by ddewey78
So I was riding over Thanksgiving and one day my bike was running great, the next it started winding up, as if the fuel was shut off, but it wasn't. If I pulled the choke on, it would idle back down. Any thoughts where to start looking?
FYI it is a 97 motor with a pwk carb.
Posted: December 1st, 2014, 6:44 pm
by MojoScojo
Air leak.
Posted: December 1st, 2014, 6:44 pm
by motardcr500
Sounds like a classic air leak.
I'd start with a thorough inspection of the carb and the carb boot.
From there I would do leak down test.
When is the last time the engine was rebuilt?
Posted: December 1st, 2014, 7:10 pm
by ddewey78
it had a top end put in it last year, maybe 12-15 hours on it. I havent even unloaded it out of the trailer yet, but when i do, i will start with looking at the carb and boot, thanks
Posted: December 1st, 2014, 7:58 pm
by motardcr500
Ok, If the carb and boot checks out ok, you might want to toss in some crank seals.
It certainly can't hurt
Posted: December 2nd, 2014, 2:42 am
by jr475
This happen to mine with about the same amount of hours and it was the base gasket.
Posted: February 12th, 2015, 10:38 pm
by ddewey78
delayed reply,
so i checked the carb and boot, looked fine, so i broke downand i bought a leakdown tester, glad i did. turned out there was a tiny split in the boot, never would have seen it. fixed it up, and runs great now. thanks!!!
Posted: February 13th, 2015, 7:44 am
by Sandblaster
Good to hear.
Love my leak down tester...