020 carb

[ptrkptz]

I am going to rebuild a carb on a 020 Stihl. The saw is a 1970s, I took it in to have it rebuilt and they said that "The saw is not worth rebuilding. You have to crack the case to get to the carb."

I think that it is worth rebuilding, so I took the rebuild kit from them. So my question is, does anyone know where I can find a exploded view of a 020t saw that was built in the 1970s?

The case is all metal, no plastic so I want to get is going again.

Thanks in advance,

ptrkptz

 

[tomdcoker]

020 Carb.

If you will send me your email address I think I can send you a copy. Tom

 

[RES]

The saw you are referring to is a 020av. The saw breaks apart into two halves to get to the carburator. There are five main screws. Two on the top. Two on the side where the pull rope is. There is one buried deep below the sparkplug wire. You have to remove the handle. One screw on the side. There are two special screws that secure the handle to the rubber mounts. Once you remove these, the handle is still tied to the linkage. I find that I have to take the handle apart and remove the front mount to undo the linkage. If you take off the air cleaner cover, there are two hex nuts holding the case to the carbureator. Once you remove all the screws, the case will split. Make sure you dump out all the gas, since you disconnect the tank when you split the saw and gas will leak out. This is a great little saw that is worth saving. Two things to check on this saw is the fuel pickup hose and the vacuum hose.

 

[Stihldoc]

RES is absolutely correct. The pulse hose should always be replaced when doing the carb on a 20Super. I once used Tygon and it melted against the cylinder fins. Lesson learned. Tygon is great fuel hose but not happy around hot parts. The 20Super is lots easier to work on than it first appears. I also see lots of points clap out on these dinosaurs. There is an excellent (but pricey) electronic conversion kit from Stihl and probably lots of good aftermarket ones. Anyone tried one of these?