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adouglas · May 6th, 2010, 05:26 PM

I just pulled my gas tank off for the first time.

I've got a bad petcock... stuck open. It is DEFINITELY in the ON position and NOT the PRI position.

I didn't have the tank completely empty, so I got fuel all over the place. Probably spilled at least a pint, maybe much more, before I got everything under control.

Yuck.

I suspected something might be wrong last fall, when I tried to drain the carbs and kept on getting fuel flow.

So the only thing keeping the engine from flooding is the float valve seats in the carbs.....

I'm tempted to just buy the whole assembly (you can order it that way), but I took the vacuum side off (easy... five screws) to see what's going on in there.

This looks like an easy fix, even though I can't see anything wrong with it. I figure I just have to replace all the rubber parts, because that's about all that can go wrong with the thing.

Anyone ever rebuild one of these?

May 6th, 2010, 05:26 PM	#1
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	Uggghhhh... bad petcock I just pulled my gas tank off for the first time. I've got a bad petcock... stuck open. It is DEFINITELY in the ON position and NOT the PRI position. I didn't have the tank completely empty, so I got fuel all over the place. Probably spilled at least a pint, maybe much more, before I got everything under control. Yuck. I suspected something might be wrong last fall, when I tried to drain the carbs and kept on getting fuel flow. So the only thing keeping the engine from flooding is the float valve seats in the carbs..... I'm tempted to just buy the whole assembly (you can order it that way), but I took the vacuum side off (easy... five screws) to see what's going on in there. This looks like an easy fix, even though I can't see anything wrong with it. I figure I just have to replace all the rubber parts, because that's about all that can go wrong with the thing. Anyone ever rebuild one of these?