Jonsered 621 bar oiler

[mopar4u]

Got my dads Jonsered 621. Man what a work horse saw. I can't wait til I inherit this saw from him. Anyways, he had me clean up the saw and also look into the bar oil that would always be sitting on the ground under the saw after it sat for some time. These are my observations:

Dad hasn't cleaned out the sawdust and debris behind the clutch housing in ages. The clutch housing area was packed with oil soaked sawdust. It was obvious this oil would slowly drip down and leave a small pool on the floor. Cleaned up everything and it all seemed ok. I ran the saw and noticed bar oil shooting all over. I found the circled bolt in the attached image almost all the way out. Wondering if this bolt adjusts the bar oiler? I turned the bolt all the way in then backed it out 2 turns and the oil isn't slinging all over. Am I on the right track?

 

[bama]

Yes. That is the oiler adjustment.

Welcome to AS and glad you have a REAL saw to start using!

 

[Cantdog]

Not sure from your post. The plug with the hex hole is the retainer. Reaching through that hole is a slotted screw which adjusts the oiler. The retainer should be screwed all the way in and tight. Then adjust the oil flow with a small screwdriver. This is probably what you did if not it is what you should do. I always adjust mine use not quite a full tank of oil to a full tank of gas. Good luck 621 is a great saw for sure and will give you many yrs more of faithful service. That one looks to be in very excellent shape keep it that way!!

 

[bama]

Not sure from your post. The plug with the hex hole is the retainer. Reaching through that hole is a slotted screw which adjusts the oiler. The retainer should be screwed all the way in and tight. Then adjust the oil flow with a small screwdriver. This is probably what you did if not it is what you should do. I always adjust mine use not quite a full tank of oil to a full tank of gas. Good luck 621 is a great saw for sure and will give you many yrs more of faithful service. That one looks to be in very excellent shape keep it that way!!

Good clarification. I assumed he meant the slotted screw, but the key word is ASSUMED.

 

[Cantdog]

Hey bama haven't seen you around lately!! Good to hear from you.
The OPs 621 looks like new, paint stiil on the muffler and not scratch on the recoil or the front of the case!! Super!!! Wish mine looked that good.

 

[SawTroll]

Good looking 621!

...and you sure are on the right track!

I haven't touched the oiler of mine though, as it always was fine - my user manual recommends 1 1/2 turns "open", I guess that was for the 13-15" bars that were standard here.
The manual states that even a small adjustment on the screw will change the oil output a lot.

 

[mopar4u]

Good looking 621!

...and you sure are on the right track!

I haven't touched the oiler of mine though, as it always was fine - my user manual recommends 1 1/2 turns "open", I guess that was for the 13-15" bars that were standard here.
The manual states that even a small adjustment on the screw will change the oil output a lot.

MANUAL! Care to share that manual?


Thanks for the compliments. This saw has cut a lot of wood and still runs great. I know he removed and bypassed the on/off switch because it stopped working correctly and just chokes it to stop it. One other part broke last year on it but I can't remember what it was. I know he had a tough time finding the part but he found a used one somewhere.

I would rather have this beast than my Husqvarna 55.

 

[heimannm]

The 621 is like an old flathead V8, it will run forever if you provide a minimum level of maintenance.

If you can't come up with a manual elsewhere, send me a PM with your e-mail address and I can send one, as much as I have anyway. IPL as well...

I assume (see Bama I do it too) that photo was taken some time ago since very few 621's still sport the hand guard in such good condition.

Mark

 

[SawTroll]

MANUAL! Care to share that manual?


Thanks for the compliments. This saw has cut a lot of wood and still runs great. I know he removed and bypassed the on/off switch because it stopped working correctly and just chokes it to stop it. One other part broke last year on it but I can't remember what it was. I know he had a tough time finding the part but he found a used one somewhere.

I would rather have this beast than my Husqvarna 55.

Well, you can of course say it is a beast by todays standards, but in 1970 it was light for its power, and had AV that actually worked!

The manual I have is in Norwegian, and a paper copy, not a file that can be shared - sorry!

 

[mopar4u]

All,
The picture above was taken today. Here are more photos I just took. Enjoy!

 

[Cantdog]

mopar that is a nice looking saw. Real clean too. One other thing about that oil system you might take alook at is the filter screen. This is located under the chain catcher which is held on by three screws. I just check this on every "new" Jonsereds I get. Oh and you should get another screw in your recoil upper left hand corner, you're mising one!!

 

[SawTroll]

The 621 is like an old flathead V8, it will run forever if you provide a minimum level of maintenance.

If you can't come up with a manual elsewhere, send me a PM with your e-mail address and I can send one, as much as I have anyway. IPL as well...

I assume (see Bama I do it too) that photo was taken some time ago since very few 621's still sport the hand guard in such good condition.

Mark

LOL - I am more impressed that it still has the plug cover - they are missing on most of them, including mine!

It also is a pretty late one (like closer to 1980 than to 1970) - several details point in that direction - but I don't really know when those details changed?

I am sure I can find an IPL and some repair instructions as well, if needed - but as I said, not the user manual.....

 

[bama]

Hey bama haven't seen you around lately!! Good to hear from you.
The OPs 621 looks like new, paint stiil on the muffler and not scratch on the recoil or the front of the case!! Super!!! Wish mine looked that good.

Hi Cant! I have been getting some backlogged projects done and also real busy at school and with the kids. Finally got the John Deere 50V done along with the Olympyk 950(in black in red). Now, I am working on my outboard: a 1973 Evinrude 65 h.p. with issues(mostly lower unit). I noticed that, too. It may have had chips in the clutch area, but I bet it was well taken care of. Did a lot of moving of wood today. 3 pickup loads had to go back since I didn't burn it. Those loads heated my 4 times! Eventually, I will get back here more often.

 

[Cantdog]

Hi Cant! I have been getting some backlogged projects done and also real busy at school and with the kids. Finally got the John Deere 50V done along with the Olympyk 950(in black in red). Now, I am working on my outboard: a 1973 Evinrude 65 h.p. with issues(mostly lower unit). I noticed that, too. It may have had chips in the clutch area, but I bet it was well taken care of. Did a lot of moving of wood today. 3 pickup loads had to go back since I didn't burn it. Those loads heated my 4 times! Eventually, I will get back here more often.

Sounds like you have been busy!!! Spring around here is always hectic too!!

What's up with your OB?? I am assuming that is three cyl. Is it manual shift or "Selectric"?? Do you know about the Bombardier site? If not just google "BRP Parts" it will take you to a catalog site where every Johnson and Evenrude OB produced from 1968 to present is displayed in oline IPLs with all the descriptions and part #s. VERY helpful. I have a 75 70HP that is in super shape. It took quite a bit of work to get it that way but with the help from the above site I found it had a non-original/incorrect carb on the top cyl and getting the carb #s was able to find the correct year and spec carb for it. If I can be of any assistance PM me. 70's Johnsons and Jonsereds seem to be my niche!!!

To the OP: as SawTroll said 1 1/2 turns out to start and then small adjustments are the way to get it set up correctly. From there it is just trial and error until you get the correct flow. Like I said earlier I like mine to be nearly (but not quite) empty when the fuel is used up. Then you top them off together and not have to stop in between to fill just one. Good luck.

 

[bama]

LOL - I am more impressed that it still has the plug cover - they are missing on most of them, including mine!

It also is a pretty late one (like closer to 1980 than to 1970) - several details point in that direction - but I don't really know when those details changed?

I am sure I can find an IPL and some repair instructions as well, if needed - but as I said, not the user manual.....

I put the user manual up on the site a few years ago. I scanned it in, though it was my first attempt.

Here is the link. It is on the 2nd page.

http://new.arboristsite.com/showthread.php?t=56462&page=2&highlight=Jonsered+621+manual

 

[bama]

Sounds like you have been busy!!! Spring around here is always hectic too!!

What's up with your OB?? I am assuming that is three cyl. Is it manual shift or "Selectric"?? Do you know about the Bombardier site? If not just google "BRP Parts" it will take you to a catalog site where every Johnson and Evenrude OB produced from 1968 to present is displayed in oline IPLs with all the descriptions and part #s. VERY helpful. I have a 75 70HP that is in super shape. It took quite a bit of work to get it that way but with the help from the above site I found it had a non-original/incorrect carb on the top cyl and getting the carb #s was able to find the correct year and spec carb for it. If I can be of any assistance PM me. 70's Johnsons and Jonsereds seem to be my niche!!!

To the OP: as SawTroll said 1 1/2 turns out to start and then small adjustments are the way to get it set up correctly. From there it is just trial and error until you get the correct flow. Like I said earlier I like mine to be nearly (but not quite) empty when the fuel is used up. Then you top them off together and not have to stop in between to fill just one. Good luck.

I was going to service the impeller. We had a Johnson 65 just like this Evinrude in the 80's(our first family boat), so it is cool having the identical one in Evinrude colors.

Well....tried to drop the lower unit with no luck. I am talking hooking a chain between two trees and trying to pull it off. All the bolts were off and the shift linkage, too. Turns out the shaft was rusted into the crank!
I finally went Redneck on the thing and cut the shaft off with a sawzall through the exhaust housing. Am getting the slit welded up now. Took a torch and heated the shaft a bit and also welded on a homemade slide hammer and it came off pretty easily. Now, I am just waiting for parts. New seals, etc., plus thermostat. Regular maintenance stuff. Oh, the lower unit had a bit of water in it, but the seals will take care of that.

Ordered all my parts based on the BRP parts IPL's. Nice site!

Can't wait to get it together and sync the carbs. I got the Factory manual for it, so I just have to follow directions.

My other OB is a 1955 5.5 hp Johnson. My grandpa was the original owner! Just re-did that one(mechanically) about 5 years ago. It is my trolling motor.

 

[Cantdog]

Yeah when you put it back together put a little grease or never seize on the splines. Not to much though, if it doesn't squeeze out it may put verticle thrust on the crank and cause problems. Just enough to keep it from rusting. Around the saltwater I neverseize EVERYTHING!!!! Man that sucks having to cut the drive shaft. Good luck!!


EDIT: Hey bama I don't think your link to the OP about the manual got posted!!!!

 

[bama]

EDIT: Hey bama I don't think your link to the OP about the manual got posted!!!!

Thanks! Now it is done!

Definitely plan for some anti-seize! The guy before me never put anything on at all!

 

[Gerdo]

621 manual/info

I put the user manual up on the site a few years ago. I scanned it in, though it was my first attempt.

Here is the link. It is on the 2nd page.

http://new.arboristsite.com/showthread.php?t=56462&page=2&highlight=Jonsered+621+manual

Hi bama this 621 that I recently found is now a project: I've removed the carb and have a repair kit coming as well as a recol spring housing (mostly for the 'Jonsered' logo. I have been trawling these 621 posts and threads and have picked up a lot of useful info and advice, but I would like to have a user manual of the machine; in an older post you had put a link to an online copy of the manual but this in no longer availabe. I wonder if you still have a copy of the manual which you could share with me? I need more info on the specs like what bars and chain types I can use or are available etc. There is a 28 tooth Oregon chain on 8 sprocket and I reckon 17 inch bar. Your help would be appreciated.

 

[bama]

Hi bama this 621 that I recently found is now a project: I've removed the carb and have a repair kit coming as well as a recol spring housing (mostly for the 'Jonsered' logo. I have been trawling these 621 posts and threads and have picked up a lot of useful info and advice, but I would like to have a user manual of the machine; in an older post you had put a link to an online copy of the manual but this in no longer availabe. I wonder if you still have a copy of the manual which you could share with me? I need more info on the specs like what bars and chain types I can use or are available etc. There is a 28 tooth Oregon chain on 8 sprocket and I reckon 17 inch bar. Your help would be appreciated.

Here is the link to the manual.
Good luck!

http://arboristsite.com/chainsaw/56462-2.htm