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View Full Version : Yz426f with yz450f decompression cam timing.



FITT#421f
05-24-2009, 07:17 PM
I have a yz426f motor in my hybrid and it has the yz450f decrompession cam in it, i was wondering if anybody could walk me through it step by step on how to time the motor.
Thanks alot

ss440ex
05-24-2009, 08:25 PM
Do a search in this section....
Or go to Thumpertalk , they have a few good write ups...
Good luck.

You need to time the new 450 cam, by matching it to the lobe position of the oem yz426 cam.

Forget about the DOTS....

Hand crank it over when done to be safe.