THe chain is shot and the input side case is in 2 parts.All I can figure is he let the drive chain get loose and was jumping.Asked him how he was landing.Gas on or off the throttle and he said on.That explained it.How many of you land jumps on the gas?

 

its hard to tell what i do when i land!?!? usually i pin the gas leaving hte jump adn right as my rear wheels hit i usually give it a lil gas to keep moving. is the chain breaking? cuz if it is are u putting the master link on right?

 

if u keep the chain tensor like and inch away from teh swingarm it shouldnt be a problem

 

Drive chain didnt break.Internal chain had a bunch of slack in it from the hard jumps.and that what I think busted the case.

 

If my 12 yr old would keep the chain tight It would be ok.My chains are kept correct when I am around but he had it at his brothers and they dont understand Polaris maintanance.

 

haha wat do u mean internal chain? i have never check mine[img]i/expressions/face-icon-small-confused.gif[/img]

 

When you get alot of play in the output shaft it ussually means it is time for a tranny tear down.There is no way to check it without pulling the tranny.

 

how long have you been jumping it? I have just replaced my chain on my 95. Been racing it for 6years. When I jump I try not to have the power on. kinda feather it. then pin it after rears touch the ground. I think you can also strech the chain but not being on the gas just not as soon. If he is on the gas when jumping I belive it will do what you are talking about an when it gets the chain streched then it will skip over the gears an you can hear it an feel it. I guessing it might have been bad for awhile. Hope this helps