dont start it without changing the oil. I would check to see if the carb needs cleaned .the needle and seat could be hung open with dirt or something. If so it can fill the motor with fuel.Did you leave the fuel on,off and reserve switch on for to long when not riding. well change oil then check for compression.the top end could be letting the fuel mixture blowby.
85 mph
36:1
They should be close enough to use, might have to trim a little to get an exact fit.
2004 RM 125 Head Bolt Torque is Initial 11 .0 lb-ft, Final 18.0 lb-ft
These (link below) are for a 08 RM 125.
Its stamped on the Crankcase and its 850ML.
32:1 ratio
Stock the claimed hp is 40 hp.
A 2003 RM 125 may bog out at low RPMs due to several factors, including a dirty air filter, improper jetting, or a clogged carburetor. Additionally, issues with the fuel delivery system, such as a failing fuel petcock or bad fuel, can contribute to this problem. Ensuring that the bike is properly tuned and maintained can help resolve the bogging issue. If the problem persists, it may be worth checking the ignition system for any faults.
I believe mine says 800ml on the side of the cases. Or it should be a little over 3/4 of a quart.
Will a 94 rm 125 engine fit on a 2000 rm frame?
A 1997 rm 125 can go around 60mph.