Scored a Ms 361 and a ms170 some issues

[skelator]

Ok I know the 170 is like a throw away. It starts and runs but compression is really low and it smokes a lot. I see pistons and cylinders are way cheap so maybe I’ll give that a shot I’m not sure yet.

Now the reason for the deal the 361. It starts up on full choke and it idles at a normal speed if I leave it on full Choke. If I move it to half choke it revs to the moon then immediately dies. Any suggestions?

 

[Woodwackr]

Ok I know the 170 is like a throw away. It starts and runs but compression is really low and it smokes a lot. I see pistons and cylinders are way cheap so maybe I’ll give that a shot I’m not sure yet.

Now the reason for the deal the 361. It starts up on full choke and it idles at a normal speed if I leave it on full Choke. If I move it to half choke it revs to the moon then immediately dies. Any suggestions?

Carb rebuild. If that don’t work, replace it.
Other than that…pull muffler and check piston. Do vac/pres test.
170s with a good muffler mod will cut like a 250.

 

[hacskaroly]

Ok I know the 170 is like a throw away.

Yes it is...but it was free so you can have some fun with it. For some real fun, the Milwaukee 7" bar does fit on the saw and I believe with a 31 driver chain (you may have to make it yourself if you have access to chain tools), but it would be a ripper!

As for the 361, possibly a dirty carb, need to clean it out and replace diaphragms if they are stale.