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Post by suzre5a on Feb 21, 2011 13:46:02 GMT -5
I noticed the other day that it appears that when I start my bike a small amount of fuel ends up in the vacuum hose that leads from the carb to the vacuum cutoff diaphragm. I would not have noticed it had I not replaced the black hose with a clear one. I can dump the fuel out of the hose and it does not come back until the bike has sat for about a week and I start it back up. Any thoughts? My guess is that over time the trapped fuel will shorten the life of the Diaphragm. Maybe I can seal off that vacuum connection and find a different vacuum source for the petcock?
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FC Zach
3rd Gear
Eagleville, TN
Posts: 335
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Post by FC Zach on Feb 22, 2011 2:52:04 GMT -5
The diaphragm is designed for fuel, well at least the opposing side (correct me if I'm wrong). There could be a possibility that the diaphragm has deteriorated and cracked thus allowing excess fuel to be pulled through the vacuum source.
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Post by suzre5a on Feb 22, 2011 11:53:19 GMT -5
Thanks for the feedback. For reference the petcock diaphragm is in excellent shape. I'm wondering that if its just one of the hazards of having a vacuum source that is connected to a carb. I think I am going to just plug that up and find another source.
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