Chainsaw Repair

Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Jonsered => Topic started by: Cut4fun . on November 16, 2011, 06:10:39 pm

Title: Jonsered 670 625
Post by: Cut4fun . on November 16, 2011, 06:10:39 pm
Here is the jonsered 670 IPL somebody was asking for. Both air filter types and part numbers are listed. 

Jonsered 670 625 IPL  http://www.jonsered.ws/625.pdf
Title: Re: Jonsered 670 625
Post by: Spike60 on November 19, 2011, 06:51:31 am
The air filters are still available, but the top covers are NLA. Parts for this family of sas is starting to get iffy, particularly the early twin coil models. Noticing it on the orange side also.
Title: Re: Jonsered 670 625
Post by: farmboy on November 19, 2011, 10:08:12 am
The 2 piece coils were a problem a couple of years back.  OEM set was around $180 or more if I remember right.  Now lots of sources for AM.  I've been stocking up on everthing I can find for this series because of "iffy".   Seeing more and more NLA's.
Shep
Title: Re: Jonsered 670 625
Post by: Spike60 on November 19, 2011, 11:17:22 am
At $180 a set, we're better off if they're NLA.  :D
Title: Re: Jonsered 670 625
Post by: North West Farmer on November 25, 2011, 12:39:54 am
The shortage of parts for the 100 series Jonsereds is getting to the point of being frustrating.  Scott at Chainsawr.com has new and used parts for a lot of brands, specializes in Jonsered.  His operation has kept my 910E in operation by supplying good used parts.  Recently The muffler was burned out and he supplied a used unit  that kept the saw going.

The frustration is due to having a very good, strong running Jonsered  that I would like to keep using for a long time.  It continues to be my primary falling and bucking saw that I use on trees over 24 inches in diameter and it appears that it will cost at least $600 to $1000 and possibly more to replace the saw if a part, that I would consider a normal wear part, like a muffler, dies. 

I realize that planned/designed obsolescence my be involved and in the bulk of products that is definitely the reason for lack of replacement part availability.  One very interesting thing about chainsaws is the tendency to become extremely attached to your favorite saw that always starts, runs strong and in large, has a history of being bomb proof.

Preferably, the manufacturers would do more to provide parts access for good saws of age, or aftermarket suppliers would pick up the short fall.  That being said, without the above occurring, we are fortunate that we have the Chainsawr.com type of business that work hard to keep the rest of us in operation.  Keep the old saw parts coming!

Nick, North West Farmer
Title: Re: Jonsered 670 625
Post by: Spike60 on November 25, 2011, 07:55:28 am
I wouldn't say that anything is "planned" beyond the fact that after a certain time there is no business case to be made to support a saw that is 30 years old. For those of us that have them of course, we'd like to be able to still get parts. But the number of such saws still in use is limited and the demand for parts is too small to manufacture or import them.

I recently scored another load of stuff from a former Jonsered dealer. I think I've got enough now that I will "go public" at some point and offer the stuff for sale. But I first need to inventory everything and get it organized and maybe on my website. Many of the part numbers are worn off the bags. Fortunately though, I'm enough of a Jonsered Geek that I recognize most of them.

There are some interesting things in those boxes, much of it NLA. NOS 70E cylinder assembly, 111 cylinder gaskets, a fair amount of 900 series parts. Lot's of goodies.
Title: Re: Jonsered 670 625
Post by: Cut4fun . on November 25, 2011, 10:33:27 am
I know where new 111 top ends are  at if someone ever needs a hook up ;) .  Not cheap give away priced but fair priced and worth it if you do 111's IMO
Title: Re: Jonsered 670 625
Post by: North West Farmer on November 25, 2011, 10:32:28 pm
Spike60,

I for one would be very interested to see what you have come up with in the cash of Jonsered parts.  I only have one Jonsered product, the 910E, my baby, but my youngest son is, as you say, a Jonsered geek, he has chainsaws, back pack powered weed whackers, hedge pruner, pole saw and other Jonsered equipment.  I have used several of his toys and they have sold me on Jonsered, with the exception of a weak dealership organization in our area of Oregon.

Almost had to go through an act of Congress to locate any muffler for my 910E, let alone a muffler equipped with an approved spark arrester.  Scott at Chainsawrs .com sent me a good used muffler that had no spark arrester, a requirement in the woods of Oregon.  He also sent some spark arrester screen material I was able to braze into the burned out muffler to produced a fairly good unit to meet the State requirements. 

My next step will be to attempt to fabricate a spark arrester equipped muffler of my own design if I am unable to locate another one in satisfactory condition.

That saw has been extremely good to me.  It has even spent many hours on the end of a 48" double ended bar, matched up with a big Remington power head, both of which were mounted to an Alaska Saw mill to produce curly maple slabs for one of my sawmill customers.  It has gone back to falling and bucking since I acquired a Lucas Mill back in 1996.

Spike60, I will be looking forward to your post after your get your cash of goodies sorted.

Nick, North West Farmer
Title: Re: Jonsered 670 625
Post by: CJ Brown on December 09, 2017, 11:47:26 pm
I just picked up a 625 as a fixer. I have to find a new tank/handle, but other than that and the air filter cover it's all there. Since I am the type that has trouble leaving things stock, I am wondering if it would be worthwhile trying to find a 670 cylinder for this saw? If I installed the 670 cylinder/piston, would I have to also find a different top cover to clear the spark plug on the 670 cylinder?
Title: Re: Jonsered 670 625
Post by: Tractorsaw1 on December 11, 2017, 08:30:59 pm
I believe the 670 boots are no longer available- might want to think about a 272 top
Title: Re: Jonsered 670 625
Post by: CJ Brown on December 11, 2017, 08:38:38 pm
I was hoping the boot from my 625 would be able to go on the 670 cylinder. I have a 670 cylinder on the way so I guess I will find out soon enough. 272 top end requires too many parts to be worthwhile to me.
Title: Re: Jonsered 670 625
Post by: Cut4fun . on December 12, 2017, 07:08:52 am
@CJ Brown  maybe some info for ya


https://youtu.be/nzMnC2_lhdQ
Title: Re: Jonsered 670 625
Post by: CJ Brown on December 12, 2017, 08:28:42 am
Thank you Cut4fun. I am going to watch that today (maybe a couple times).
Title: Re: Jonsered 670 625
Post by: CJ Brown on December 12, 2017, 04:58:35 pm
Did a little research on the Tillotson carbs that came on this series of saws. I was surprised that the 625 shared the same bore and venturi sizes as the 630 and 670. They all shared the same low speed needle as well. Where they differ is the high speed needle. The HS237/251 that came on the 625 seems to have a unique H.S. needle not shared with any other Tillotson carb. The HS230 that came on the 670 shared a H.S. needle with Husky 281. The HS250 that came on the 670 shared a H.S. needle with the 630, as well as the 266 and 272 Husky saws. The 630 came with an HS225/252/256. All this is according to the Tillotson chart and not necessarily carved in stone.

Having said all this, I have Tillotson carbs here from both the Husky281, and the 266. I am thinking the carb from a 266 would be the proper carb to use after I install the 670 cylinder.
Title: Re: Jonsered 670 625
Post by: plowjockey1 on November 12, 2020, 05:37:05 pm
Did a little research on the Tillotson carbs that came on this series of saws. I was surprised that the 625 shared the same bore and venturi sizes as the 630 and 670. They all shared the same low speed needle as well. Where they differ is the high speed needle. The HS237/251 that came on the 625 seems to have a unique H.S. needle not shared with any other Tillotson carb. The HS230 that came on the 670 shared a H.S. needle with Husky 281. The HS250 that came on the 670 shared a H.S. needle with the 630, as well as the 266 and 272 Husky saws. The 630 came with an HS225/252/256. All this is according to the Tillotson chart and not necessarily carved in stone.

Having said all this, I have Tillotson carbs here from both the Husky281, and the 266. I am thinking the carb from a 266 would be the proper carb to use after I install the 670 cylinder.

Newbie here, so forgive me for bringing up an old thread, but the Jonsered corner of the site is very quiet. I own a 625 and 630 super II. I'm in Ireland and just curious on parts availability in the US. Is there much available from Husky dealers? Main reason I bought the 625 was as a parts donor for my 630. But it's nearly complete and I aim to get it running over the winter.
Title: Re: Jonsered 670 625
Post by: Cut4fun . on November 13, 2020, 07:23:17 am
Older ones seem far and few. Finding jonsered parts for older ones is having to go used market or NOS if lucky.  GL
Title: Re: Jonsered 670 625
Post by: 3000 FPS on November 13, 2020, 11:37:03 pm
I remember working on these saws going back 5 years and parts were starting to get hard to find back then.   Like cut4fun said used parts are your friend if can find them.   
Title: Re: Jonsered 670 625
Post by: Spike60 on November 20, 2020, 06:57:22 am
These are some of my favorite saws and this comes up a lot. There are many Husky parts that can be used to keep them going. If you have specific questions on what you might need for the 625 I can answer them. Body parts are pretty much all gone now. Ignitions are interchangable between Husky and Jonny. Husky pistons from the 61 and 268XP will cover the 625 and 670, and the windowed 61 pistons will also work in the 630. It's the intake where things get tricky, as there are 4 basic intakes for this chassis. 61, 268 open port, and 272 top ends will all fit on the Jonnys but those intake differences need to be sorted out. And things will be tight using the 268 and 272 top ends under the early twin coil saw top covers. It can all be made to work one way or another.

Walt and I are going to do a video outlining all of this on his "afleetcommand" youtube channel fairly soon as he has gotten requests similar to what plow jockey is asking. Gotta keep these Jonnys running!
Title: Re: Jonsered 670 625
Post by: 3000 FPS on November 20, 2020, 11:05:06 am
Very Good Spike.    I have not ran any my Jonsereds for quite awhile.  Especially the 670's    I need to get them out and see what is going on with them. 
Title: Re: Jonsered 670 625
Post by: 3000 FPS on November 20, 2020, 03:05:35 pm
So I decided to get one of my 670's out today.   I tagged this saw when I put it away.   That was Oct of 2015.    The saw fired right up and I did not even have to tune the carb any.    This one I had welded up the clutch cover on from a crack at the bottom.   They sure are good strong running saws.