400 Starts but dies while wariming up

Hi folks, first post on this forum for me. I have a 2000 Kodiak 400 that I can’t get running. As the title says, I am able to start the motor but I never get to fully warmed up – the warmer it gets, the worse it runs, until it dies completely. I thought maybe the choke was the issue because it was stuck closed. I pulled it apart and unstuck it but that didn’t seem to help. I tried searching the forum but nothing that came up seems to match my issue.

A little background on the atv – its a spare that doesn’t get run much – it ran great last summer but sat all winter. Since the spring it doesn’t want to run. Any ideas?

Thanks for any help you can give.

400 Starts but dies while wariming up

Hi folks, first post on this forum for me. I have a 2000 Kodiak 400 that I can’t get running. As the title says, I am able to start the motor but I never get to fully warmed up – the warmer it gets, the worse it runs, until it dies completely. I thought maybe the choke was the issue because it was stuck closed. I pulled it apart and unstuck it but that didn’t seem to help. I tried searching the forum but nothing that came up seems to match my issue.

A little background on the atv – its a spare that doesn’t get run much – it ran great last summer but sat all winter. Since the spring it doesn’t want to run. Any ideas?

Thanks for any help you can give.