powernow mod

2 replies to this topic
  • yar250f

Posted 03 March 2003 - 06:10 PM

#1


has anybody had any experience doing the power now mod on 2 strokes? can you experience similiar results as is being reported on the four strokes? my 250f is in a million pieces i'm waiting for rod bearing ,2cnd gear, left crank half, and some bearings etc. should have traded up my kids bikes are a yz80 and yz125 so i was wondering if the power now mod would benefit those bikes? thanks for the info

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • yamaha.dude

Posted 03 March 2003 - 11:17 PM

#2

I think you may see some sort of improvement... but then a YZ80 or 125 is not known for it's bottom end lugging power characteristics anyway... you may get a bit of power, but you may not notice it, because the rest of the bike is designed for keeping it in the powerband... the JamesNOW will not significantly broaden the powerband on those bikes... changing the reeds and a different pipe will make far more difference...

It may throw your low-end jetting out the window though, I have no direct experience...

HTH,

David

  • yz007f

Posted 06 March 2003 - 06:42 AM

#3

I have heard when you put the powernow on a 2smoke you should drop the main jet about 3 sizes on a 125.

yz007f



If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!