Jonsered Chainsaws

[RandyMac]

I got this little guy from BigBadBob, while at the GTG.

621

There are a few things to work out, some I know about and I'm sure
there will be a few more as I go through it.

 

[wendell]

I didn't know you were allowed to own "little guys".

 

[RandyMac]

I didn't know you were allowed to own "little guys".

Got to attempt balance.
Besides, it's red and has a manly profile.

 

[MacLaren]

That sure is nice Randy. I like it.

 

[RandyMac]

You-all want this thread stickied?

 

[PB]

You-all want this thread stickied?

Aren't there enough threads stickied already? Christ, it's getting out of control. What happened to the free market economy? Threads will stay at the top if people want them too.


PS, that 621 is a nice looking saw. If you need a good bar at a decent price send me a PM. There is a source that I can't post in the forum.

 

[wendell]

Got to attempt balance.
Besides, it's red and has a manly profile.

I agree. I do like mine!

 

[Arrowhead]

I know it's a long shot, but does anybody have a decent 590 piston they would part with?

 

[PB]

I know it's a long shot, but does anybody have a decent 590 piston they would part with?

That there is a VERY long shot. Not many people have a 590 piston and even fewer are willing to separate with them. I will keep my eyes open for you though.

 

[Arrowhead]

That there is a VERY long shot. Not many people have a 590 piston and even fewer are willing to separate with them. I will keep my eyes open for you though.

LOL... Yea, I figured it was a stretch, but I got my fingers and toes crossed. :msp_smile:

 

[SawGarage]

That there is a VERY long shot. Not many people have a 590 piston and even fewer are willing to separate with them. I will keep my eyes open for you though.

are the 490's and the 590's the same bore/stroke? should be some other options out there..... unless this is a puritan saw


on that note...

anyone have a rear handle mount, felling spike, or spikes, and maybe a coil for a Jonsered 910? have plenty to give/trade...1st born isn't here yet, though...lol

 

[Arrowhead]

are the 490's and the 590's the same bore/stroke? should be some other options out there..... unless this is a puritan saw

Same stroke, different bore. The 490 is 44mm and 590 is 45mm.

 

[SawGarage]

Same stroke, different bore. The 490 is 44mm and 590 is 45mm.

same casting on the cylinder? 44zn15?

J

 

[Arrowhead]

same casting on the cylinder? 44zn15?

J

The casting numbers are all the same on the 490/590/Partner 5000's. That's Mahles cast number. The manufacturer decides bore and port timing. The part numbers are what's different.

 

[SawGarage]

The casting numbers are all the same on the 490/590/Partner 5000's. That's Mahles cast number. The manufacturer decides bore and port timing. The part numbers are what's different.

correct....that is the way I understood it... the manuf. must also determine DOME/combustion chamber.... as the same cyl is used on some orange saws too, and the squish clearance is MORE, and compression less.

question here is, what's better, a 490/5000, or a 590???


Is the manuf. part # on the cyl as well, somewhere?

J

 

[terry2tmd]

If you have been adjusting the points, you don't have a 70E. The E stands for electronic ignition, and the 70's didn't have points.

You guys are right, I am sure. I haven't had the pleasure of being around a lot of Jonesered saws so I am kinda retarded about them. At the moment that particular project has kind of been back burnered, due to keeping existing saws running, I sure appreciate you guys for all the help though.

 

[terry2tmd]

View attachment 190304View attachment 190305View attachment 190306View attachment 190307View attachment 190308
Ok guys what is this? It says 80 what does that mean what's the displacement, and where is the best parts source for it? It has points, and I believe that and a new fuel line are keeping it from running. I had it running once when It ran it ran like a scalded cat!

 

[w8ye]

Pictures

 

[Joe46]

80cc's. Made between 1970 and 1980. It does have points like you said. I can't help with parts though. Sorry.

 

[Cantdog]

Yep all true...way good old Swedish muscle..best chance for NLA or used parts are off E-Bay and E-Bay sellers/stores. I have one real nice runner and three others that are on the way to rebuilds....