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jonsereds 621

Discussion in 'Chainsaw' started by wedge, Dec 18, 2003.

  1. wedge

    wedge ArboristSite Operative

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    i bought a johnsereds 621 at a garage sale. i know nothing about it other than it weighs a ton and runs like a top. any one know its displacement or approx. age and so on. my searches have produced nothing
     
  2. smokechaser

    smokechaser ArboristSite Operative

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    Wedge

    Specs out as so:

    56cc/3.4 c.u. in.
    45mm bore
    35mm stroke

    hope this helps.
     
  3. wedge

    wedge ArboristSite Operative

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    its a bit of an anchor. but the price was right. any clue to approx. how old it could be? thanks for the info
     
  4. eyolf

    eyolf Addicted to ArboristSite

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    There are a few of us here that like Jonsered chain saws. I own a 621, and while I acknowledge it is heavier than some more modern saws, it seems to be a willing worker.

    56cc with an 8-tooth sprocket, running 3/8 full chisel on a 20" bar...a guy would think the saw would be pretty wimpy, but it really isn't. Seems to pull hard at a little lower rpm than some other Jonsered saws of the same general era...there's a big diff between this saw and the 535, for example, that isn't fully explained by the measly 7 cc's diff.

    621 is a quite good firewood saw, able to handle about anything around. The downside of the 621 is that it has been discontinued for long enough now that a few service parts are getting tough to find. I'd not let that stop you unless the saw is in almost perfect shape...to nice to use. With reasonable care it should last a casual user forever.
     
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  5. wedge

    wedge ArboristSite Operative

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    its in great shape and appears to need nothing. ill have to give her a try. thanks for the link rocky. i still must say its a load to carry around though
     
  6. Pacific

    Pacific ArboristSite Operative

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    I had a 525 Jonsered I was glad I cooked it because the SOB never did run right since I got it. It was a light saw perfect for brushing but the MS260 that replaced it is even nicer :blob2:

    All I can say about buying a used saw from a garage sale is buyer beware you could be buying a dead horse. The first thing you do is pull the muffler off if you can and see if the piston is scored if so walk away.
     
  7. wedge

    wedge ArboristSite Operative

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    i had it running at the sale, it needed a carb cleaning but the price was right. the only ones i always but no matter are stihls . as long as the price is right. spare parts are nice to have
     
  8. bob621

    bob621 ArboristSite Lurker

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    Manual for 621

    I have the Operator's manual and parts diagram for the 621 on ebay this week. Anything you want to know from the docs?
     
  9. bama

    bama Addicted to ArboristSite

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    I love my 621. Yes, it is heavier than today's saws, but she has lots of grunt. I run an 8 tooth 3/8 20" bar and never slow down in the oak I cut. These saws are bullet proof if properly maintained. Parts are a little hard to come by, but there are some good sources. Decent anti-vibe for a saw from the 70's, too.
     
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  10. PB

    PB Addicted to ArboristSite

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    Well if you decide that you don't need another anchor, let me know I always need another Jonny. :cheers:
     
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  11. GASoline71

    GASoline71 Mr. Nice Guy (Moderator)

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    I've got a 70E that is it's bigger brother. The saws were made in the late 70's early 80's.

    Heavy but tuff. My 70E is 69 cc's and it has more grunt than you would espect from a sub 70 cc saw.

    Gary
     
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  12. SawTroll

    SawTroll Information Collector

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    You are right on!

    It is a really cool firewood saw for "yard" use, but a bit heavy to carry into the woods. The chain speed is quite good with the 8-pin (that was standard), no reason to try a 7-pin with reasonable bar lenghts.

    Hmmm - something familiar with that post.....:greenchainsaw:
     
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  13. SawTroll

    SawTroll Information Collector

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    The nearly identical 62 came out in 1968 and the slightly refined 621 in 1970.
    The design was well ahead of its time, and production lasted until at least 1982, when it was replaced by the 630, I think.

    Power rating was 3.6hp/2.65kW at 7700rpm, but it "seems" to have more, the way it cuts.

    Even the anti-vibe actually works.
     
    Last edited: Oct 17, 2007
  14. jra1100

    jra1100 Addicted to ArboristSite

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    My 621 buy

    I used my neighbors saw this winter to cut up a limb that came down in a ice storm. The limb was about 12 inches and walnut. The old saw went through it like a hot knife through butter. I asked him what it was since all the markings were worn off. He said it was a Jonsered 621. I thought it was a hell of a cutter if a bit on the stout side. I found one on ebay and bought it for $26. It took a long time to get here and I emailed the guy, so he threw in another one as a parts saw to make amends. Saw started right up, but as he said in the ad, it had a hesitation when at full power. Took it to my saw guy and now it's great. Not bad for a $26 dollar investment. JR
     
  15. Chainsaw Master

    Chainsaw Master ArboristSite Operative

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    Wow....you got a real good deal on that 621 Jonny,..... $26 bucks..... thats almost free....the only downfall of that saw was the air filter, it would suck a lot of sawdust down in the carb.
    Way back in '75 I used to run a 621 all day felling, and limbing for a tree length logging operation, when the 70E came out & I bought one I remember thinking how much more powerful it was over the 621, but the 621 was prolly wore out by then. Also the 70E also had a much better air filter on it & like Bama said they had real good anti-vibe for those days.....
     
  16. David Y.

    David Y. Addicted to ArboristSite

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    Nice buy!!

    I saw one today on craigslist for $150. I have borrowed my brother's 621 several times. I concurr with all the other assessments. It's heavy and it cuts well.
     
  17. dudley92

    dudley92 ArboristSite Lurker

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    Garage Sale 621

    I also just bought a Jonsered 621 at a garage sale. Does anyone have a bucking spike that they would be willing to sell for this saw? Thanks.

    Dudley
     
  18. SawTroll

    SawTroll Information Collector

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    I find no reason for one, the weight of the saw and an 8-pin 3/8" rim (was standard) sure helps.....
     
  19. dudley92

    dudley92 ArboristSite Lurker

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    Sawtroll--I'm going to get a new chain today without all the anti-kickback bars on it and give it a try without the spike. Thanks for the info.

    Dudley
     
  20. SawTroll

    SawTroll Information Collector

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    Just make sure it has an 8-pin on it, unless the bar is over 20".
     

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