Fuel Mix?

[WoodyBlue]

Question for the pros and milling veterans out there. Running a MS 660 Mag, Stock. What is the best fuel mix for it for milling on a Logosol M8 Farmers?

 

[dmb2613]

40 to 1 and richen out the carb

 

[mdavlee]

I always did 32:1 milling just for the ease of 4 oz per gallon. I’ve went as rich as 16-20:1.

 

[WoodyBlue]

40 to 1 and richen out the carb

When say “richen out the carb” can you give some specific tips please?

 

[Deets066]

When say “richen out the carb” can you give some specific tips please?

I would get familiar with tuning a carb if you plan to mill with a chainsaw.

 

[WoodyBlue]

So that is why I asked the question. I know it is difficult to illustrate here in words but I have a LITTLE experience in tuning a carb. But not a lot. So making it run leaner is setting the idle higher or lower to almost a stall or what.

 

[dmb2613]

Open up the high side [ turn the screw out ] 1/2 turn will get you in the ballpark if the saw was tuned properly to start with. it needs to gurgle some at wide open throttle when not under a load. If it screams it is too lean

 

[dmb2613]

So that is why I asked the question. I know it is difficult to illustrate here in words but I have a LITTLE experience in tuning a carb. But not a lot. So making it run leaner is setting the idle higher or lower to almost a stall or what.

OK you have a high speed screw, a low speed screw and an idle screw. this is going to be too much for me to type

 

[Deets066]

If your saw has limiters, a fixed stop. Turn both screws out until they stop.

Keep in mind this may not be rich enough, espeacially if you go to 32:1 fuel mix.

32:1 will run leaner than 50:1, therefore needs to be tuned richer.

 

[ray benson]

So that is why I asked the question. I know it is difficult to illustrate here in words but I have a LITTLE experience in tuning a carb. But not a lot. So making it run leaner is setting the idle higher or lower to almost a stall or what.

This should get you started.
http://www.madsens1.com/saw_carb_tune.htm
The service manual explains adjusting the carb with limiters and without limiters. Check your inbox