I have eh 1989 trail boss 250 i have spark and just cleaned the carb but it still wont start so when i had the carb off i looked in side at the piston while i was rollin it over and it does look like it is comin down far enough it only comes down just passed the ring but i can not see the top of the piston any ideas???

SOURCE: Do i really need a special tool to remove engine on atv?

nope. get the tool... you will damage alot of stuff if you try other methods. just get the tool.

SOURCE: i have a 1989 polaris 250 trail boss and can not

go to www.alaskapowersports.com and there should be on the tabs polaris oem and its like the program the polaris dealerships use and if u like you can order it from there (no download needed)

SOURCE: 87 trail boss has spark and fuel but won't run

test the compression. it needs to be 90 psi or higher

SOURCE: Can you tell me if a 2002- 250 Trail Blazer motor

I would recommend not swaping the motor due to peformance differance and the money that will have to be invested it might be cheaper to buy a frame to fit it

SOURCE: I have a polaris trail boss 250 and wont start

try using the pull start you may not have compresion with the electic