Join Date: Feb 2010
Location: Little Canada ,MN
Over heat problem, no power
There is some thing really wrong with it for sure, I have a 07 650 xt (stock) and it would smoke that thing,. I think I would try the old ECU chip if you have it, and see if that makes a diffrence .
OR it may require the carb get re jetted for the new ECU chip.
As far as the over heating problem i would check to be sure the fan turns on before it over heats, and if it does , go for a new thermostat. If you do go with a new thermostat, I would read some of the other posts here cause there is a way of burping the system to get all the air out, Something about lifting the radiator higher than the engine..
Thats about the extent of my knowledge, I'm new to the Artic Cat world, and only rode mine once for about an hour.
Sorry i couldnt help you more, but i'm sure a few others will chime in with a lot better info for you...