i have a 1997 sportsman 500 that me and my auto shop are going to install a turbocharger on theirs just one problem so far, the quad doesn't run at its ability and in order to get the bets performance out of it we have to fix it to get it running at its best ability. the problem is very awkward, it has VERY slow acceleration and about a 20mph top speed when its rly gets going in high but the governor is taken off. The throttle opens completely when its pushed however it still doesn't accelerate or hit its top end. if u put the throttle at certain points it will start to pick up and it use to go full speed at certain throttle positions that were not full however now it wont even go over 20mph. We found a vacuum leak but we fixed it and it ran a little bit better but it still doesnt have the get up and go it should have. it is capable of very fast speeds and i know it because iv been able to hit 61mph on it at my buddies farm but now it wont even go over 20 like i said. any suggestions? i really wana get her fixed so we can get on with the turbo! PLEASE HELP!

 

Welcome to the forum. Try posting in the Polaris forum instead. There are guys there that can fix anything on a Polaris. Check the throttle cable slack to see if the ETC is messing it up.