PCV tuned properly

[Quadrider43]

Just got my '10 XMX back from the dyno. Had the tech tune my PCV on the dyno. He showed me the initial pull....AFR looked like a roller coaster maxed out at 34HP, and dropped rapidly afterwards. After being tuned AFR averaged 13.5:1 with 37HP. I know, sounds low, but the same dyno showed my YFZ with a Duncan Racing HP4 head, full exhaust, vortex ignition, etc. maxing out at 39HP. Very happy considering I spent about $3000 for the Duncan engine, and only have about $650 into the Rotax engine!

[hcomras]

wow thats a loooooow reading dyno. just goes to show how different they can be! my woods stage 2 dynos (at sea level) at 49rwhp.

[gregory]

What kind of u running?

[hcomras]

What kind of what?

[gregory]

Sorry fuel lol haha.... It was late lol

[Rdy2goride]

I just got the PCV on my 08 450x looking for a good AFR table, can someone help?

[venom108]

Off the top my head like 13.6 to 14.0

[kastemato]

They say 12,5AFR gets the most grunt out.

[gregory]

Quadrider43 also doesnt run the o2 sensor either.

[jimjim]

Quote: Originally Posted by Rdy2goride

I just got the PCV on my 08 450x looking for a good AFR table, can someone help?

you need to hit the dyno.