Two Stroke Motocross
Two Stroke Motocross Forum => Technical => Topic started by: stewart.brown.rm250 on April 24, 2013, 10:37:59 PM
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How would I go about getting more power and speed out of my 2007 rm 250 I just got this one and after my first time out tonight dissapointed cos I sold my 06 rm250 last feb and it was double the bike it was my mates backup bike and it must have been tuned to the max cos nothing has come close since ? Any advice would be awsum need power
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With my 07 all I did was add a fmf fatty pipe and muffler ,it made a really good boost over the whole rev range and the bike pulled really well and the best thing is its a pretty cheap good mod.I didn't really do a lot more the rm has a great user friendly manner I have also heard of some adding a 10 oz flywheel weight but personal preference on that and would depend on your riding .hope it helps
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not sure about your power and speed comment... I guess it depends on what you use the bike for. I ride mx mostly and some offroad desert/dune stuff. I put a PC pipe and silencer on mine, with a MT reed assembly. I agree with vetman that a flywheel weight helps with hook up on the slippery stuff. I installed the lightest weight available and it is a simple bolt on mod. Depending on your track 1 tooth on the rear is also a good bet....
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How old is the top end, is the piston clearance in spec or was it not measured before installing the piston.
Jetting set up etc can make a big difference. Timing being retarded also gives a more mellow power curve.