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Motor runs fine at first but when you go to full throttle the motor stalls and will only keep running at a lower idle? seems to be fuel related so I checked the fuel filter its cleen. I then found a fuel pressure gage and checked the fuel pressure in idle and full throttle. after priming before starting 10-12psi. in idle 4-5psi. in full thottle drops to less than 2psi. I do not know what is the correct psi. per condition? how should I proceed?

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I'm not too sure but it sounds like theres a problem with the actual throttle. there could be a pressure release in the throttle line thats not working right or like in a car the pully/lever like system that controls the throttle is messed up. i would check to make sure your model has a pressure release or is known for falty throttle gauges. hope that helps

Posted on Jun 28, 2009

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Posted on Jan 02, 2017

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