How do I flatten the power curve on a KX100??

[Jimbokdx]

I want to get my son a KX 100. I don't think he is tall enough for a 125, but I'd like to get him something that does better on hill climbing than his YZ80. Problem is, I'd like to bump up the low and mid-range power. How do I do that?

Jimbo

 

[cujet]

I am sure Eric Gorr can modify the porting for you. In addition ask him if a big bore kit is available. Often times a big bore kit mellows out the power in a really nice way.

Chris

 

[CJ Rider]

Just a thought... Even plain stock, the KX100 is an easier hillclimber than a YZ80. Try one out and see.

 

[bbilliot]

Start by changing to a bigger rear sprocket. Try going up 2 teeth. If you still need more, the FMF fatty pipe will add to the bottom and boysen dual stage reeds help too.

Hope that helps.

 

[LocoCD]

I've posted a couple of time on this subject. Doa quick search. We've done a ton of mods - best bottom end changes were Carbontech Low Tension reeds (worked better than the Boyeson Dual Stage) and an SST pipe w/turbine core. There is no comparison to an 80. it's a great woods bike.