Motorcycle Repair: 2002 KX125 no mid range/top end, crankcase pressure, fuel mix

Question
Bike was running great then started losing power at full throttle. Now doesn't accelerate after about 1/8 throttle. Acts like its running out of fuel.Checked reeds, carb and jetting.Checked timing and compression all looks okay. Fuel mix is 32-1,with a BR8EIX. Packing was just changed. Any help would be appreciated, thanks.

Answer
Sounds to me like the baffle in the muffler could be clogged. Either that or fuel has leaked down into the crankcase and filled it up. If thats the case, your engine cannot build the crankcase pressure it needs to run correctly..

Hope this helps!

~Mark