Author Topic: 066 carb tuning after muffler mod  (Read 2226 times)

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Offline Cut4fun

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Re: 066 carb tuning after muffler mod
« on: August 19, 2012, 11:24:04 am »
Looks like you have a dual port cover already. Check carb tuning if just installed. Skip to my  other info for back half modding, recheck carb tuning.

If stock I keep them like this. On a stock saw with muffler mod the rpm is still the same IMO.  After muffler mod you will richen up the H side to bring it down to the desired rpm. You should notice quicker cut times and more power in the cut. 
Sometimes you have to adjust the L for throttle trigger response, most times I have noticed not though. Sometimes the I idle needs tweaked, then again most I have seen stock with MM didnt. Usally just the H side.

The 066 660 DP dual port muffler cover is a great flowing cover and a bolt on. 

On you back half drill out the holes on your cage or remove it if you have one there.

On your back half where your exhaust exits open that hole to the deflector.

 

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