McCulloch 4600 Chain Saw issues

[JohnnyC]

I have a mac 20" saw...and got it as a feebee...

the original owner is elderly and can no longer start it.

I did get it started...after adjusting the 'l' and 'h'...he (PO) tried to do an adjustment because he couldnt get it running

It runs fine at idle...but sometimes breaks up whengoing all out while sawing large stuff.

sooo the other day i was using it...and it quit...thought it not getting gas when i was trying to restart (I pulled the plug and no gas on it)

I poored alil gas down the carb..it sounded like it was boiling and sizzling...seems to be over heating.

also the coil wire had melted to the cooling fins?

A friend seems to have heard thats a common issue? overheating that is?

is my 'h' setting off...i think its about 1.5-2 turns out

 

[D'Animal]

Boiling the gas in the fuel tank wich leads to vapor locking in the carburetor and sometimes the fuel system has plagued Old Homlites and McCulloch.


Your carb settings should be good where they are.

 

[JohnnyC]

is it that there is not enough air pushing thru? they got the entire thing enclosed and its getting too hot inside the case?

 

[D'Animal]

Running lean can increase the operating temperatures.

Debris packed in the cylinder fins can also cause the cylinder tempuretures to elevate.

It should not run hot enough to melt the sparkplug wire.