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Old 10-01-2008, 05:40 PM   #1
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Unhappy Back-pressure exhaust line- HPI RS4

I recently bought an HPI RS4 with a nitro Star .12 motor. It is running fine except when I open up the throttle, the line running from the exhaust to the top of my fuel tank for back-pressure keeps popping off of my exhaust. I've tried both zip ties and super glue, but nothing will hold it on, and this is causing fuel to be sprayed all over the rear end of my car. Any help on attaching this line would be greatly appreciated!! My car is constantly covered in fuel!!!


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Old 10-01-2008, 06:34 PM   #2
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it sounds like the fuel nipple that is in the top of your tank is blocked, either buy a new fuel tank or you can try and unblock it if it is blocked by shoving a pin then something the size of the hole. or you could take it to ur LHS and get them to look at it.

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