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adouglas · September 21st, 2017, 12:37 AM

Easy enough to test the petcock...

If it's a vacuum petcock, it should not allow fuel to flow if the engine isn't running.

Try draining the carb bowls with the petcock in the ON position. If fuel keeps on flowing after they should have emptied, the petcock is faulty.

Relevant threads (note: this is for a newgen model, so the part is different... but if it's vacuum operated, the principle behind the 2007 version is the same):

Discussion of symptoms
https://www.ninjette.org/forums/show...hlight=petcock

Solution, with pics of the petcock
https://www.ninjette.org/forums/show...hlight=petcock

September 21st, 2017, 12:37 AM	#13
adouglas Cat herder Name: Gort Location: A secret lair which, being secret, has an undisclosed location Join Date: May 2009 Motorcycle(s): Aprilia RS660 Posts: A lot. Blog Entries: 6 MOTM - Jul '18, Nov '16, Aug '14, May '13	Easy enough to test the petcock... If it's a vacuum petcock, it should not allow fuel to flow if the engine isn't running. Try draining the carb bowls with the petcock in the ON position. If fuel keeps on flowing after they should have emptied, the petcock is faulty. Relevant threads (note: this is for a newgen model, so the part is different... but if it's vacuum operated, the principle behind the 2007 version is the same): Discussion of symptoms https://www.ninjette.org/forums/show...hlight=petcock Solution, with pics of the petcock https://www.ninjette.org/forums/show...hlight=petcock __________________________________________________ I am NOT an adrenaline junkie, I'm a skill junkie. - csmith12 Nam et ipsa scientia potestas est. Heri historia. Cras mysterium. Hodie donum est. Carpe diem.