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VaFish · November 15th, 2015, 03:55 PM

Daughters bike has had some minor carburetor issues, flat spots in acceleration and occasionally a pulsing at speed. I had cleaned the carbs a couple times, shimmed the needles, and it seemed much better, but not perfect.

Well a couple days ago the wife says "The smell of gas in the garage is nauseating" I stepped into the garage thinking she was complaining about nothing again and almost started gagging. Looked over at the bikes and there was a puddle about a foot in diameter under my daughters bike. The petcock was leaking with a steady drip, drip, drip.

Well I quickly ordered a new petcock, but the daugher wanted to go riding this afternoon. I dug through my parts pile and found a Yamaha Quad petcock. It was a little short, had to mount it backwards, but it worked. Plugged the vacuum line to the petcock since the quad petcock didn't need it.

Took her bike for a ride and all the flat spots and pulsing were gone.

Contemplating leaving this petcock in place.

November 15th, 2015, 03:55 PM	#1
VaFish ninjette.org certified postwhore Name: Tom Location: Northern Virginia Join Date: Jul 2015 Motorcycle(s): 2001 Ninja 250, 2019 Harley Ultra Classic, 2001 Suzuki SV650 Posts: A lot. MOTM - Jan '16	Guess I Had a Vacuum Leak in the Petcock Daughters bike has had some minor carburetor issues, flat spots in acceleration and occasionally a pulsing at speed. I had cleaned the carbs a couple times, shimmed the needles, and it seemed much better, but not perfect. Well a couple days ago the wife says "The smell of gas in the garage is nauseating" I stepped into the garage thinking she was complaining about nothing again and almost started gagging. Looked over at the bikes and there was a puddle about a foot in diameter under my daughters bike. The petcock was leaking with a steady drip, drip, drip. Well I quickly ordered a new petcock, but the daugher wanted to go riding this afternoon. I dug through my parts pile and found a Yamaha Quad petcock. It was a little short, had to mount it backwards, but it worked. Plugged the vacuum line to the petcock since the quad petcock didn't need it. Took her bike for a ride and all the flat spots and pulsing were gone. Contemplating leaving this petcock in place.