Polaris sportsman won't start

[lon]

I have a 2000 polaris sportsman 90 that won't start, it ran fine then one day It wouldn't start it has good compression the carb is clean it's getting gas, getting air, and has spark but won't start. HELP

[LT80]

Is the pipe plugged?

[lon]

i pulled the exhaust off and blew compressed air through it and shined a light down it and it looks fairly clean. i took the cylinder off and the piston looks good but a little bit of blowbye and i noticed the crank was had a little up and down play.

[LT80]

Up and down is no good.
I'd do a compression test now.
Maybe ask "old polaris tech" at atvconnection

[lon]

ill try the compression test today and then ask them. thank you