RM250 woods motor:

[jackdrinker]

I'm looking to tame the hit of my 03' RM250...
The motor is 100% stock including pipe, save for a set of dual stage reeds and filter..
My time and money is vested in suspension and crash parts,
This motor is great but a little wild...
porting is not an option any time soon, so here are my Q's..
Steahly weight, maybe a 10oz
Pipe spacer
Power-valve spacer..
Anyone have any idea's how these will work on an individual basis or in a combination?

 

[soulmate33]

Go with a SFB 12oz or 14oz flywheel weight.
They are made from stainless steel. Cost is the same.
I run a 9oz on my CR250.

 

[jackdrinker]

Can you tell a difference with the weight?
Man, I wish I could get this thing sleeved down to a 200.... ahh, the dream..

 

[2-Strokes 4-ever]

Porting is the bottom line solution. Varner Motorsports knows how, did all of Suzuki GNCC's work. Flywheel weight helps some... smaller rear sprocket too (if your trails aren't too tight)... V Force cleans up the roll-on...Yamaha's 5mm reed spacer works well (and cheap) For me a Gnarly didn't work (must run race gas, and I refuse to) The 03's one sweet ride, but quite a handful if not worked with.

 

[d36RM racer]

I have a have a 03 with a rad valve, sst pipe, yz pistion and it runs on race gas and the bike was a handful for cc but i race it till last spring that way. I added a 14t front sprocket for a desert race and it made the power way more managable and i dont have to shift all the time

 

[jackdrinker]

Where would one get this 5mm spacer? I've found them in 3/8" and 1/4"

 

[sick 96 250]

what about adjusting the tension on the exhaust valve? It helps the hit of mine pretty decently