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MCX Phazer CO adjustments

slymax

TY 4 Stroke Junkie
Joined
Sep 4, 2004
Messages
622
Location
Northern Alberta
My wife rides a Phazer with the head shim. I have it running good at around 12lbs boost but think it would benefit from different CO settings like the Nytro and Apex do. Anyone found a good setting? We ride it at 2-4000ft. Yes, it's hard starting when it's cold.
 

did you have the ecu update done? Also i read on snowest where if you hold your hand over the exhaust while starting it will help the sled start. Seems to work for me.
 
All updates done. I have the CO at -17. Hand over exhaust must be a myth, doesn't make any difference. Gonna leave it out in the cold and see how it starts.
 
I thought it was a myth also but Dave at powderlites was the one that posted it. Also Dustin at outlaw was removing the decompression valve on phazers that had a head shim are low compression pistons.
 
The other day I noticed something about this cold starting issue. Usually my sled is in an unheated garage and has always started, always. One day we got a ton of snow so i left the sled out for some reason. It started perfectly at -25. I rode the sled for a few hrs that day, parked it and came back to ride it at 4:30 again, it would not start, hmmmm. I pulled sled into garage and next morning started fine. next day I parked sled with exhaust facing away from wind and started fine, same afternoon I tested this theory and turned sled so wind blew in exhaust and guess what, would not start. In extreme cold, try not to allow wind to blow into exhaust. I think the cold blowing air gets the motor colder from wind blowing into exhaust. Could be coinsidence but I think not. That extra few degrees of cold air directly on exhaust port contributes to harder combustion
 


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