WFO or go home
Newbie
What does MCX recommend for peak RPM?
Their dyno shows the peak HP at a higher RPM than the 7850 recommended by Yamaha.
Thanks,
Their dyno shows the peak HP at a higher RPM than the 7850 recommended by Yamaha.
Thanks,
woodsrider
TY 4 Stroke Junkie
- Joined
- Feb 17, 2005
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- 669
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- Lewiston, ID
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- USA
- Snowmobile
- 2017 YZ450FX1 Moto-Trax 137 Mountain Kit
You should be running between 8500-9000 peak rpm (Yamaha Spec). I try to run 8600-8700. If i get below 8500 I adjust my shockwave.
robertyoke
Veteran
- Joined
- Jan 23, 2008
- Messages
- 39
i spin mine a 9000 and let the load pull it down to 8800 or so. rev limiter hits at 9200 or so
WFO or go home
Newbie
Thanks for the info.
jaysrippen
Newbie
I was also curious, just called Price George Yamaha, MCX distributer, they recommended 8650rpm for there 12# boost set up.
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