Thread: G1 Muffler
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Old 05-24-2009, 10:13 AM   #2
smallblock450sl
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Yamaha
 
Join Date: Oct 2007
Location: Tacoma Washington
Posts: 11,875
Default Re: G1 Muffler

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Originally Posted by Link View Post
Can someone tell me what the small rubber hose is for that runs from the muffler to the engine???
It really runs from the muffler to the oil pump. The tube in the muffler is called a "jet sensor" and it tells the oil pump how much "pressure" the muffler has at a peticular RPM, thus the oil pump gives more oil at higher RPM.
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