sheebad1990 Posted May 17, 2014 Report Posted May 17, 2014 Can anyone help my banshee runs fine at first. Starts first or second kick. After riding awhile it idle high. I shut it down yesterday. Started it today and only one side had exhaust coming out. It idled high and just shut off. Can someone please help Quote
sheebad1990 Posted May 17, 2014 Author Report Posted May 17, 2014 How would I pink point where the leak is coming from. Quote
turbowrenchhead Posted May 17, 2014 Report Posted May 17, 2014 (edited) google "how to build a leak down tester" Once you have it built then you apply 7psi to the crank case. It should hold that pressure for 20 mins. If it doesn't then you know you have a leak. You spray the seals and gaskets with a soapy water mix. The leak will create bubbles. Whala! there is your leak. I have had leaks between the case halfs and the reed/intake boot gaskets. Edited May 17, 2014 by turbowrenchhead Quote
sstaton1983 Posted May 17, 2014 Report Posted May 17, 2014 Check compression, the side with a hole in the piston will be the side the leaks on...do the leak down test to see if it passes, when it don't pass then you pull the side covers off so you can see the crank seals..pressure up to 6 psi and spray soapy water then look for bubbles. Quote
sheebad1990 Posted May 17, 2014 Author Report Posted May 17, 2014 Could I turn a compression test into a leak tester? Quote
sheebad1990 Posted May 17, 2014 Author Report Posted May 17, 2014 Oh One more thing do I have to split the motor to replace crank seal if that's the issue. But I have lost any oil. Thanks for advice. Quote
bigweav81 Posted May 17, 2014 Report Posted May 17, 2014 yeah you have to split them, but ive read where guys leave the top end bolted on, and split the cases removing bottom case half only. heard its a little tricky to put back together. a leak down test is cheap to build, or you can buy a cheap home built leak down test off ebay for 30 bucks. Quote
sheebad1990 Posted May 17, 2014 Author Report Posted May 17, 2014 Ok thanks for the help. I will be checking that in the next couple days. Will update soon. Quote
turbowrenchhead Posted May 18, 2014 Report Posted May 18, 2014 I haven't had one seal up with just gaskets yet! I always have to silicone both side of the gasket with Yamahabond. Quote
sheebad1990 Posted May 27, 2014 Author Report Posted May 27, 2014 Ok I found the problem. easy fix. Idle screw was wiggling lose. No air leaks but when I first start now it idled high then goes to normal but fine afterwards Quote
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