My peugout speedfight 2 50 isnt running rite i added a doppler sports exhuast and sports airfilter i added the bigger main jet but i think it might still be to small when im riding it it dosent rev out to its full and gose really slow intill i go down hill then it tears and also when i go off from a standing start it flys for a sec then slows rite down

nick muller, March 2008

i have the same problem i only hit 41 max with a tenigas exhaust, 6.5 rollers

john, April 2008

Sounds like you need lighter rollers fitted

Ducko, March 2008