ok i'll try to explain this the best I can. My 1999 banshee w/pro-circut pipes, boysen reeds, reed spacer, and a white bros booste bottle. I can sart it and it idles but it wont rev up, When I give it throttle it bogs out really bad. It all started when my cousin ran it out of fuel and re-fueled it. It hasnt run right since then. The left plug is soaked and the right one is dry, its like the left cylinder isnt burning any fuel, and yes its gettin spark we checked. I also put new plugs in it.And the carb on the left side is soaked w/oil. Help me out here people do I just need to clean the carbs or did my rings break?
thanx for your help,
JoN

 

you might have an air leak, this happened on our old snowmobile. at first we thought it was the carbs so we tried adjusting everything that we could and it still would bog down when you gave it gas and one piston was soaked with gas and oil but the other one was running fine. we ended up melting the piston. So Dont try running it. i would take off the head and compare the tops of the pistons.

 

no no no....Its the throttle box. It happend to my 97 Banshee. Just open the throttle box up and spray some wd40 on it.