Jonsered 90

[digdeep]

Hello I am new to this site. I came accross this site researching a saw my father recently gave me. Its a Jonsered model 90 he purchased new in 1978 (the same year I was born). This saw was his firewood saw for about 6 years until he went to Stihls. He cleaned up the Jonsered and put it on a shelf in the shop in 1984. It sat there until around 1990 he pulled it out and cleaned it up just to see if it still ran. It ran perfect. Back on the shelf it went.
I was there for dinner a couple of weeks ago and I was talking about getting a Stihl MS460 to go with my Stihl MS260. He said I could have the old Jonsered in the shop. I said no way would that thing run. We went out filled it up and it fired up on the 5th pull incredible. The thing runs like a top. I have cut a couple rounds with it very impressed. My question is what are some things that I should do to keep this saw in top shape. What are some issues to look out for in this model saw. I am only familiar with Stihls and don't know anything about Jonsered. Great site lots of useful info.

 

[eyolf]

Get a spare air filter and a set of points now, while you still might be able to. OR...just use the saw now and then for enjoyment.

I have one and love it. But it's kinda heavy for its power and the anti-vibe is so-so; 35 years of improvements on modern saws and all that. If you're used to a newer, more nimble saw, it will start to feel like you're driving an old truck without power steering after a while...

 

[digdeep]

I already see parts are hard to get. There is not much info on these saws. That is what turned me onto this site seems the guys on here have more info than anyone else. I have used a Stihl 044 more than any other saw, and the Jonsered is like an old heavy dinosaur. But I like it seems like a real beast in your hands. Its got a 36" bar on it know and came with a 40" bar also. This will not be an everyday saw.

 

[SawTroll]

1978 is pretty late for a 90 - close to 910 time........

 

[digdeep]

Could be It does not have any model # on it only a serial #. It has the decompression valve. How do I post pics? I would like to know what model it is.

 

[digdeep]

The serial # on the Jonsered saw is 484542 I have seen where some members can track this and identify saws with the #.

 

[taplinhill]

On the pre-Electrolux take over saws (like the 90), the serial number is just the production sequence. The later saws have a "code" to them. As far as keeping it running good, use good fuel, good oil, and keep the tank and carb drained when you are not using it. New parts are hard to get, but used ones are around. It shares most parts with the 801 and some with the 80.

 

[adkranger]

Could be It does not have any model # on it only a serial #. It has the decompression valve. How do I post pics? I would like to know what model it is.

When you open the "Reply to Thread" page, under the box where you type (scroll down) you'll see a button "Manage Attachments". Click that to upload your images. Make sure to resize them to 300kb or smaller first. If you search for posting pictures or something similar there were detailed instructions posted by someone a while back for embedding them into your post.

Let's see that ole Johnny Red.

 

[digdeep]

Lets see how these pics turn out. I need to get my good camera for good ones.

 

[taplinhill]

That's a nice 90.
And family saws are the best.

 

[digdeep]

I found on the collectors corner site that this saw should use a 25:1 mix. I run all my other saws 50:1 should I mix special for the saw or just put the 50:1 in it? Does anyone know of a good saw shop in the SW Washington area to get bars and chains for the Jonsered. We have no dealers in the area.

 

[adkranger]

Voila

I'd say you can run your regular, quality 50:1 no problem. I run the same mix in all my saws reqardless of vintage, the oil has changed much more than the saws internals.

Very nice Jred. Don't have one, yet, but not for the lack of looking.

 

[digdeep]

How did you get the pics to show up like that? This site is very addicting can't stop just searching around. There is some great info on here. Some more pics

 

[GeirA]

To get the image directly in the thread:
After closing the Manage Attachments window, you'll see the attachments in a list (below the button for Manage Attachments).
If you right-click on the link for the attachment you'd like to inlcude, select Copy link address, and then click on the Insert Image "button" in the text editor. Paste the link address in the small "window" that pops up, and that should insert the image into the post.

I could make a detailed (pics included) tutorial if one hasn't been made. Computer tutorials used to be my bread and butter.

 

[SawTroll]

I found on the collectors corner site that this saw should use a 25:1 mix. I run all my other saws 50:1 should I mix special for the saw or just put the 50:1 in it? Does anyone know of a good saw shop in the SW Washington area to get bars and chains for the Jonsered. We have no dealers in the area.

The oil has improved a lot, so I see little or no reason to use anything but 50:1, provided you use a good quality synth oil. My 621 is older than that 90, and it has been run on 50:1 for a long time, also well before it was handed over to me.

 

[heimannm]

That is a really nice looking 90. My first new saw ever was a 621 in 1981, I ran that thing for 27 years until it finally failed a PTO side bearing and started spitting balls through the cylinder. I still have a couple just for old times sake.

Clean that thing up, run it when you need a long bar, and do try to get a few routine maintenance items like the air filter and points and you should be set for 20 years or more.

And by the way, that roller nose bar is a really nice touch, take care of it and enjoy the history.

Mark

 

[digdeep]

My plan is to hang onto it and just use it for the big stuff. I have used it three times this week just to try it out maybe a total of 4 hours. It still amazes me how this thing fires up so easily for a 32 year old saw. I have two of the old Oregon roller tips the one on the saw and a 42'' that is brand new never used. I need to invest in new chains. The old Jonsered is so heavy I still want to find a used MS440 or a 441 or 460 to compliment the MS260. What are good chains for the Jonsered?

 

[sledhead34]

Hello I am new to this site. I came accross this site researching a saw my father recently gave me. Its a Jonsered model 90 he purchased new in 1978 (the same year I was born). This saw was his firewood saw for about 6 years until he went to Stihls. He cleaned up the Jonsered and put it on a shelf in the shop in 1984. It sat there until around 1990 he pulled it out and cleaned it up just to see if it still ran. It ran perfect. Back on the shelf it went.
I was there for dinner a couple of weeks ago and I was talking about getting a Stihl MS460 to go with my Stihl MS260. He said I could have the old Jonsered in the shop. I said no way would that thing run. We went out filled it up and it fired up on the 5th pull incredible. The thing runs like a top. I have cut a couple rounds with it very impressed. My question is what are some things that I should do to keep this saw in top shape. What are some issues to look out for in this model saw. I am only familiar with Stihls and don't know anything about Jonsered. Great site lots of useful info.

do you still have the 90 ?? just run it 25:1 they love that mix and keep her warm inside that saw will outlast the modern saws 10 to 1 ,great low end and top end

 

[sledhead34]

I found on the collectors corner site that this saw should use a 25:1 mix. I run all my other saws 50:1 should I mix special for the saw or just put the 50:1 in it? Does anyone know of a good saw shop in the SW Washington area to get bars and chains for the Jonsered. We have no dealers in the area.

run 25:1 these saws need that extra oil for ring and compression ...