Chain saw question.

[JayinNY]

I have this Jonsreds chainsaw that was my grandfathers, my dad got it in the 90s and I spent alot of time using it cutting wood with dad. In 2000 when I bought my house I took the saw and decided to work on it, it's a 801 at 80ccs this saw was a beast nothing stopped it, problem was it took 37 pulls to start it, parts were obsolete, but johnsreds emailed me a list of dealers, I found a guy in Wisconsin that had piston rings and a spring for the recoil. I re ringed it, and got it running great, a year or two later dad wanted it back, I don't think he used it once since then, well I got it back this week and the gas in the tank was bad and looked like jelly, in my second pic, I put straight gas in the tank to try to break up the crud, and poked it with a screw driver, any ideas how to get that crud out? I'm gonna try air compresser tomorrow, or maybe e85 ethonal will dissolve it, I can't imagine what the carb will look like? I'd like to get this running again if possible, it still does have spark.

 

[16-30 oilpull]

try seafoam. can get most parts stores

 

[Petert]

oxi clean laundry detergent will clean it right out! I have used it on old motorcycle tanks.
Good luck

 

[Russ from MN]

I have a 621 that's about 40 years old, runs great! I bought another one on Craigslist a few years ago for parts, but once I checked it over I got it running real well and sold it. The gas tank on it looked terrible, I rinsed it out and didn't worry about it, if the felt filter on the end of the fuel line is good a little scale in the tank is not a problem. I was told 20 years ago that parts were going to be hard to get but I haven't needed many, only a carb kit.

 

[Bret4207]

(quoted from post at 02:36:04 02/21/16) I have this Jonsreds chainsaw that was my grandfathers, my dad got it in the 90s and I spent alot of time using it cutting wood with dad. In 2000 when I bought my house I took the saw and decided to work on it, it's a 801 at 80ccs this saw was a beast nothing stopped it, problem was it took 37 pulls to start it, parts were obsolete, but johnsreds emailed me a list of dealers, I found a guy in Wisconsin that had piston rings and a spring for the recoil. I re ringed it, and got it running great, a year or two later dad wanted it back, I don't think he used it once since then, well I got it back this week and the gas in the tank was bad and looked like jelly, in my second pic, I put straight gas in the tank to try to break up the crud, and poked it with a screw driver, any ideas how to get that crud out? I'm gonna try air compresser tomorrow, or maybe e85 ethonal will dissolve it, I can't imagine what the carb will look like? I'd like to get this running again if possible, it still does have spark.

Don't put E85 n there, it will just make it worse. You can pull out whatever you can get out with a tool. Then add Seafoam or Berrymans or any carb cleaner type stuff and let it sit for a while, several days at least. Order a carb kit and new fuel filter and figure out what sized lines you're going to need and get Tygon or other modern, alcohol resistant line. NAPA will have it or any small engine dealer. Drain and rinse the tank multiple times. IF you can get it going, figure on changing the fuel filter several times over the first 25 hours of so of running. I've saved a lot of saws int he same condition. If the carb gives you problems and you can't clear the passages, it may need replacing.

That's a great old saw from the days when Jred was a viable brand.

 

[Jo Bird]

One of the best things you could do to upgrade the saw, do away with the old points and condenser. Install a " Nova 31-1968 & Nova II 31-8786" chip. Simple, easy and cost far less than a new set of point and condenser if they are even available. The saw will start so much easier, no more 37 pull's to get it running!!

 

[Jiles]

My grandson found a Homelite super ez automatic in an old barn. Barn was on property with home they bought.
No telling how many years it set. Gas tank was unbelievable on inside, worse then yours.
I have cleaned many fuel tanks, and have found that full strength Simple Green with several sheetrock screws, placed in tank and shook occasionally over several days, will remove all residue.
A bit slow, but safer then muriatic acid.
Tank cleaned up very well.
I can't say about your model, but many aluminum tanks are two piece and can be separated. Sometimes this is best and you can make a gasket.
I chose to clean the way I mentioned because it was simpler then tearing apart, since I didn't know history of saw.
Saw is now running great, after carb rebuild, and that's all I had to do

 

[Nordic]

Putting those recommended chemicals in there to loosen the crud is most likely where to start. What I did with my old Homelite with a bad tank...put the pressure washer nozzle in there for a good while (line to carb blocked). That made it clean. Changing filters often is not only inconvenient but gets expensive after a while. I haven't had any trouble since.