Powernow on a TM 250??

[KTM250RDR]

I am turning a 01 TM 250 mx into a Hare Scramble/Enduro bike. Will a Powernow increase the bottom end power? Any other ways to get the bottom power a little stronger?
Thanks

 

[Rich Rohrich]

I am turning a 01 TM 250 mx into a Hare Scramble/Enduro bike. Will a Powernow increase the bottom end power?

It may change the part throttle reponse somewhat, but it won't change the low end power. Getting any sort of low end power out of a TM250 MX bike will be tough without major changes.

 

[TM-Frank]

Boyesen Dual Stage Reeds help a bit.
Another idea would be to mount the lighting setup from the enduro version (bolts right on the ignition rotor). This would of course only tame the engine without adding low-rev power.

 

[bte]

It will be hard to get low end out of that bike without spending a good bit of $. Out of all the little things I tried the best mod was changing out to a 36mm carb. It took about a month of testing to get the needle and jet combo but it did help out.

Good luck,
brown

 

[TM-Frank]

bte,

that's interesting!
I still have my old 96 TM250 lying around here as a basket-case and one of the plans is to reassemble it it hand it over to a friend of mine. She is a beginner rider and currently has an absolutely worn out RMX which just refuses to die. I am a bit sceptical if the somewhat pipey TM would be the right bike for her. I didn't have any problems with the motor characteristics but she might have.
Can you still remeber or look up the jetting/kind of fuel/oil-ratio combo you ran with the 36 mm carb? A Keihin PWK or a Mikuni?

 

[blanc]

I currently own the 96 bike and i certainly wouldnt call it pipey.Its ultra smooth....and i would have said very similar to a slightly modded rmx! Looking for a new exhaust for my bike anyone know where i can get one? Anybody have spares theyd like to sell of any sort for this bike?

 

[bte]

TM-Frank,
I will look around to see if I can find it.
I think it was a 14?? series needle, and around a 185-190m 45p.
Like I said, I look around and see if I can get you the info.

brown