I have a 2007 wolverine 450 that is having multiple issues that may or may not be related. First of all, it's been sitting for 1.5 years without running. I recently started it and have a few issues:
1. Once it starts it runs at high rpm as if it is full choke regardless of choke lever position. The rpms are so high that you can't put it in D or R without the gears grinding.
2. While in P or N, if you give it a little throttle, it bogs down and stalls. If you give it a lot of throttle, it revs up fine and acts normal.
3. Periodically while in P or N, the red Reverse light will flash slowly for 10-20 sec and then will stop for 30 sec to 1 min before repeating. I'm figuring this is some sort of trouble code but can't find anything on it.

Any ideas on where to start?

Thanks

 

Sounds like you need to go through the whole fuel system. Clean the tank, carb, inspect the fuel line, filter etc.