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  1. YFZ Powertrain
    Hi guys, i was hoping i can get some suggestions on what vortex settings i should run i have the 2021 yfz450 Mods : Yoshi rs2 full system Fci intake Hotrot crank Athena stock bore cylinder Cp 12.5.1 high compress piston Stage 2 cams Ais delete Oil return tank Vortex so lately i destoryed the...
  2. YFZ450 & YFZ450R General Talk
    07 yfz 450 high compression with stock engine So i changed out the cylinder and piston on the quad after i had smoke leaking out of the exhaust head. Ended up changing out the piston and cylinder. Wanted to do it soon anyway. Put it all back together and got two very loud pops on start up...
1-2 of 4 Results