Mill Saw Tuning

[GeneralKayoss]

This is my G660 Pro (Stihl 660 clone) I run it with a 36" bar. I originally tried to tune it by ear a little on the rich side. Picked up a tach today, it was rich alright, 10400rpm rich lol! Anyway the idle was at 2400 so I left it alone and I put the top end at about 12400. Does this seem like a good safe tune for milling, using 30:1?

Also installed a Farmertec high output oiler, and it seems to be doing it's job after that two minute tuning session! Stock oiler wasn't doing this anyway! Although I didn't notice a ton coming off the end of the chain, chain is definitely well oiled though.

 

[NSEric]

I'd fatten it up a hair more, like 11500-12000rpm, I ran mine at 12800 with a short bar blocking up fire wood, they dont go past 13000rpm and make power unless you mod them.

I did the free oiler mod grinding on the pump to make it pump more just for cutting fire wood, im almost out of oil when im out of gas with a 20 inch bar. I dont know how a 36 inch bar survives milling.

 

[GeneralKayoss]

I'd fatten it up a hair more, like 11500-12000rpm, I ran mine at 12800 with a short bar blocking up fire wood, they dont go past 13000rpm and make power unless you mod them.

I did the free oiler mod grinding on the pump to make it pump more just for cutting fire wood, im almost out of oil when im out of gas with a 20 inch bar. I dont know how a 36 inch bar survives milling.

Yeah the stock oiler on this thing was pathetic tbh, even turned all the way up. I drilled the bar oiler holes out a bit but at most it would use 1/4 tank of bar oil per tank of gas (it was super rich then though) I might mill up another log this weekend to really test it out. I'll throw the tach back on it tomorrow and set it around 11,800.

 

[Vintage Engine Repairs]

Stock rpm is 13k (some 13.5k). I’d just get it on the mill, set it rich and then lean it out gradually until it only just cleans up. use 25:1

 

[J D]

Farmertec spec them at max 13500 rpm so if you're not going to set it as Tom suggests above then 12500 should be about right. Use a good FD rated oil & 30:1 will be fine. Be sure to tune to your mix. Muffler mod wouldn't hurt