Yz 125 more grunt?

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6/16/2018 9:44 AM

I got a 2017 yz 125, loving it so far, but coming off of bigger bikes I do miss the grunt though. What’s the best bang for buck to get more bottom end pull without losing top end? Thanks


6/16/2018 10:12 AM

144 kit


6/16/2018 8:15 PM

Pipe, reeds, port the cylinder, head mod and the correct fuel. You’ll have a little ripper


2011 Yamaha YZ 250 -MX
1996 Yamaha Banshee 350 -Trails
1982 Chevy S10
2005 Pontiac GTO -451rwhp

6/17/2018 3:04 AM


"Performance Matters"

6/17/2018 6:20 AM


6/17/2018 6:42 AM

F1 Moto wrote:

Rocketship menu:

F1 Moto long rod hi inertia crank
HGS exhaust
VHM Head
VHM Billet piston
V4R reeds
F1 Moto porting

Jrewing wrote:

Sounds cheap!!!!

That's the most expensive can of SPAM you'll ever eat.


6/17/2018 10:37 AM

Yeah, spend $1000s on bolt ones and it will be nearly as fast as a stock bike with a 58mm piston lol.


6/18/2018 5:20 PM

Don't forget MXA's go-to for more grunt: add a tooth to the rear sprocket.
That one, plus maybe mill the head for more compression and run a V-Force reed assembly. Those three things tend to target the bottom end.


Braaapin' aint easy.

6/19/2018 8:27 AM

the only thing I found is a vortex ignition with the x-10 map. Super fun low end for tight tracks.