what in the sam hell!

[Yamaha_Rules69]

^ Hoser, really interesting info on your post at that website! Thanks for sharing! Cody, you never want to use great stuff sealer on a top end of ANY engine! I have experience with that stuff, and I wouldnt really recommend it for anything other than a torn clutch cover gasket, and a small amount at that.Also, anytime a piston breaks and falls into the crankcase, it is time for a tear down (split cases) You learn from your mistakes, and become better afterward. If you need some advice, post here, and we will try to help you out. Good luck!

[yeppimcody]

yeaa thanks yamaha i talked to my small engin teacher at school and he said thats what i should use it on the had bc the instrustions that came with it said use a good amount on the head gasket

[hoser]

yeaa thanks yamaha i talked to my small engin teacher at school and he said thats what i should use it on the had bc the instrustions that came with it said use a good amount on the head gasket

Any updates?

[atcrider1]

could be a carb problem, i recently rebuilt an 87 vmax 540 with new 30 over wiseco pistons and melted a hole it one the first time i took it out due to a plugged power jet, in the 3 days it took me to put the motor together, tune it in and blow it up, wiseco discontinued all oversized pistons for vmax's

[hoser]

could be a carb problem, i recently rebuilt an 87 vmax 540 with new 30 over wiseco pistons and melted a hole it one the first time i took it out due to a plugged power jet, in the 3 days it took me to put the motor together, tune it in and blow it up, wiseco discontinued all oversized pistons for vmax's

Is their any other brand pistons still available for that engine? I use to have a 540 but used the Yamahaha pistons.