I just got a 2005 kx 85 and my first 2 stroke.
Bike has a lot of power lost through 1-3 gears, and picks up from there.
Bike had a lot of oil ran through it, so I ran the bike to burn the oil out but it's still not helping. Any idea of what it could be?
so for all who is reading an if you have the same problem.
1st check every thing on the bike to make sure working right.
2end clean the carb.
3rd if the bike is under 120 psi on compression. rebuild it!!!!!
DONT RIDE THE BIKE UNDER 120 PSI,IT WILL CUASE ALOT OF DAMGE AN MONEY.