stock flywheel weights

[MOTO ON RM250]

Does anyone know what the average size of a stock 250 2t flywheel? Specifically a 2004 rm250, I understand rm's flywheel is usually smaller than others. Also what would be a good size steahly flywheel to get? Now I'm usually only riding at the track and would like some more traction as they always water it extremely to much.

 

[2-Strokes 4-ever]

RM's use to be known for "instant snap" which also made then them kind of a rear-end swapping handful if you weren't paying close attention. This started to change in 03. For MX, I would think a 6-8oz addition would be all you would want.........although I run 12oz on my woods bike.

 

[whenfoxforks-ruled]

Do you know there is an adjustment on the exhaust valve to tune where and how it hits? Flywheel weights,geez not again!

 

[MOTO ON RM250]

6-8 oz addition would be about how much? am i looking at about an 8oz?

 

[MOTO ON RM250]

Do you know there is an adjustment on the exhaust valve to tune where and how it hits?

I am not exactly worried about the hit, i just want more traction. Is that how a heavier flywheel works, it smooths the hit and thats how you get better traction?

 

[sick 96 250]

what he is saying is you can adjust the exhaust valve a little which will bring in a less harsh of a hit in which will give you more traction instead of breaking the rear loose. If I remember you want to turn it a little Counter clockwise and it will ease things up a bit with how hard it hits the powerband. Flywheel weights work also for lugging down low but you can manipulate the powerband strike by the exhaust valve adjustment.

 

[MOTO ON RM250]

got it.

 

[RM_guy]

I put a 9 oz flywheel weight on my '01 but it came stock with hardly any weight so I needed more. Stealy has a good chart for how much weight you need for the type of riding you do. I still like some snap but want some traction in the woods so I went with the Aggressive woodsrider/novice MX and it is a good balance. The 8 oz is the equivalent for your year bike. Here's the link to the chart http://www.steahlyoffroad.com/recommendation_charts.htm