Chain Sharpening for the 1000th Time

[Lumberjack]

Originally posted by sedanman
For the MILLIONTH time! Intelli carb DOES NOT MEAN FIXED JET. There is such a thing as a fully adjutable intellicarb. HUsky uses a "compensating" (intelli) carb on some of their saws. Intelli carb is not the enemy, fixed jets are!

OK for us less chainsaw smart people, does the 660 still use a fixed jet carb?



Something else, it is an agreed thing that openining the muffler and retuning adds around 20% to the power of the saw. The 044 comes with 5.3 hp. 5.3 x's 1.20= 6.3hp, and the 066 comes with 7 hp. I know that the torque curves are diff, but the opened 044 is close to an 066 if its all you got. I rarely have to block up anything in the way of a trunk, my log guy picks it up. Now that i can sharpen chain, I can justify getting a bigger saw.

 

[sedanman]

To my knowledge the MS660 was never equipped with a fixed jet carb, limiter caps yes (easily defeated) but no fixed jets. I am also a fan of the newer style polymer flywheel, if the saw doesn't have to use power turning the flywheel, more is available to pull the chain.

 

[rbtree]

Originally posted by MasterBlaster
Cool, but the 'larger saw' has nothing to do with it.

An 044 takes a 20", 24" tops.

Pffssst. You easterners are so bar length disadvantaged....poor fellers you are...and bad backs too from bending over.....

In softwoods, a stock 044 pulls a 32 bar with ease. I've run them for years...., prefer a 28 or 25 though, I admit, if the trees are smaller or real hardwood.

 

[glens]

I'd bought a "magnum" front cover for my 066 (with probably no more than a gallon of fuel through it at the time), and on a 90° day in 22" red oak, I went from 22 seconds even to 19 seconds even with the only change being the front cover swap.  I wasn't racing or anything, just letting it fall through the log.  That's very nearly 16% gain.  By opening up the inlet basket of the muffler and enlarging the pea-hole on the side, 20% should be easy to find.

Glen

 

[tony marks]

well just one comment onthis. joihn if u running that big saw with no muffler.
u not only fell the tree u cutting but the noise probably knocks several others dn around u,huh. couldnt resist bud