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Jonsered chainsaw help


CigarGuy

Question

CigarGuy

I just tore down a CS2250s chainsaw and when I was putting it back together I found a part on my bench that I don't know if it belongs to the saw or not. Does anyone know if this is a part that belongs on the saw? I looked over a parts diagram and didn't see it, but I don't want to try running it if it's an important part. It's a little bigger in diameter and thickness than a quarter. Thanks

IMG_20210126_165056984.jpg

IMG_20210126_165119781.jpg

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I've never owned a Jonsered so I have no experience with them but about the only thing that comes to my mind is possibly some kind of washer or spacer behind the drive sprocket?? 

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CigarGuy

Thanks, I never took that off. I had a box left over from a light bar I put on my side by side next to the area I was working. When it warms up, I'll go out and see if that part matches anything on the light bar. The part looks new, like it was never installed on anything. Thanks again!

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CigarGuy

I sent the pictures to a chainsaw repair shop and the guy said not a part from a chainsaw. Case closed! Now to see if my carb rebuild was a success.

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SkunkedAgain

I was going to say that it doesn't look dirty enough to come off of a chainsaw! It looks like you may have stumbled onto an ancient Aztec lock washer. 😁

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leech~~
6 hours ago, CigarGuy said:

Thanks, I never took that off. I had a box left over from a light bar I put on my side by side next to the area I was working. When it warms up, I'll go out and see if that part matches anything on the light bar. The part looks new, like it was never installed on anything. Thanks again!

Didn't you have a drawing of the light bar assembly to look back at or look it up on-line if you throw it already?

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CigarGuy

Hey Leech how ya doing? I'll have to look. Tried starting it today, still doesn't run good. Now, I have to buy a carb kit. I should have done that anyway😀. I'm not too mechanical, so this is kind of a big deal to me. If I had a dollar for every youtube video I watched, I could pay cash for the new saw!! My wife did give me permission to buy a new Stihl👍

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leech~~
3 hours ago, CigarGuy said:

Hey Leech how ya doing? I'll have to look. Tried starting it today, still doesn't run good. Now, I have to buy a carb kit. I should have done that anyway😀. I'm not too mechanical, so this is kind of a big deal to me. If I had a dollar for every youtube video I watched, I could pay cash for the new saw!! My wife did give me permission to buy a new Stihl👍

Still banging around.  👍

Chainsaws seem to be some of the most finicky motors around. A few years ago I picked up one at a garage sale up by Crosslake, Mn that the guy said I could have for free. (he had a few bucks)  He said that he couldn't get it running so he bought a new one. I brought it back to my camper shed and tore the carb off and cleaned it up. I keep a set of welding tip cleaner wires around for this and found the jet hole clogged solid with saw dust bits. The next weekend I was clearing dead falls off my deer trail with it! 😋

Edited by leech~~
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PRO-V

I only run 91 or higher ethanol free gas in mine. Has run like a champ for 27 years (Stihl). Changed the plug maybe 3 times.

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On 1/28/2021 at 8:04 AM, PRO-V said:

I only run 91 or higher ethanol free gas in mine. Has run like a champ for 27 years (Stihl). Changed the plug maybe 3 times.

I have never used ethanol free gas. Always used 87 octane regular fuel. Bought my Stihl in 1983 after my Husky was stolen and used it professionally for about 4 years working for a logger on the iron range. Still use it today only occasionally to do some cleanup around the place. I mix gas for it whenever I run low and store it in the same old plastic antifreeze container I used when I was logging. There have been times my fuel was multiple years old. Never have a problem with the gas or carb. In fact, I don't recall ever disassembling the carb. Speaking of plugs, it might be worth taking a look at it. I know it has been at least 30 years since I replaced it the last time. 

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PRO-V

I use ethanol free because the saw may sit for 6 months and ethanol gas has phase separation which causes problems. If the saw got used regular than 87 ethanol is fine.

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On 1/29/2021 at 4:18 PM, PRO-V said:

I use ethanol free because the saw may sit for 6 months and ethanol gas has phase separation which causes problems. If the saw got used regular than 87 ethanol is fine.

As I mentioned, I only use mine occasionally. I think I might have used it one day or maybe on two days this past year to do some cleanup. I don't think I even ran a tank full of gas through it.

 

Not trying to degrade those that choose to use nonethanol fuel. It's probably a good idea. Just sharing my experience. I use regular 87 octane in everything including my ATV, boat, ice auger, lawn mowers, garden tiller, chainsaw, and vehicles and have not had any issues.

 

Check that, I did one time. About 10 years ago I pulled my ice auger out in the fall to start it up and run it a little in preparation for the ice fishing season. I couldn't get it started so I poured the old gasoline out of the tank and into a container. There was about 1/2 cup and It smelled like diesel fuel. I mixed up fresh fuel and put it in the auger and it fired up. Was good to go the rest of the winter. 

 

I have been using fuel stabilizer for the past 8 years or so when I winterize my boat and when I put my auger into storage but those are the only ones I use it for. Maybe I've been really lucky but if that's the case then I've been lucky for a few decades.

Edited by BobT
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