i have a 2002 prairie 650 and its running bad. The plugs turn black in just a couple of days and starts to run poor again. I feel it is the air fuel mixture but i may be wrong. any tips or suggestions would be greatly appreciated.

 

Check to see if the choke is stuck on. It's a known problem.

 

yea, black kinda points to very rich mixture or oil comsumption.

monty