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Author Topic: Jonsered 590  (Read 7138 times)

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Offline Cut4fun

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Jonsered 590
« on: February 27, 2011, 12:10:02 pm »
Here is my start to a 590 project.

 Just so you can see what a 590 looks like inside.  I really like the set up on it.

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Offline SawTroll

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Re: Jonsered 590
« Reply #1 on: March 07, 2011, 01:55:06 pm »
Thanks (also for telling me about this site)!

Did you measure the bore of it?

This site looks really promising!   ;D
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Offline Cut4fun

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Re: Jonsered 590
« Reply #2 on: March 07, 2011, 05:02:44 pm »
45mm bore and I think that makes it 50.7or8cc
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Offline SawTroll

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Re: Jonsered 590
« Reply #3 on: March 07, 2011, 06:39:19 pm »
Quote from: Cut4fun on March 07, 2011, 05:02:44 pm
45mm bore and I think that makes it 50.7or8cc

45mm fits with the info I have from before - but I believe it is 50.9cc, maybe 50.8 (seen both numbers), but not 50.7.

The exact cc is an "academic" question, I just wanted to get confirmation that it wasn't the same 46mm/53.2cc as the P5500.  ;D
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Offline Cut4fun

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Re: Jonsered 590
« Reply #4 on: March 07, 2011, 06:55:36 pm »
Quote from: SawTroll on March 07, 2011, 06:39:19 pm
Quote from: Cut4fun on March 07, 2011, 05:02:44 pm
45mm bore and I think that makes it 50.7or8cc

45mm fits with the info I have from before - but I believe it is 50.9cc, maybe 50.8 (seen both numbers), but not 50.7.

The exact cc is an "academic" question, I just wanted to get confirmation that it wasn't the same 46mm/53.2cc as the P5500.  ;D

Poulan 325 is 46mm and I got one.  The top end fits on the 490 590 5000 500 50 special to if one so desired a cheater saw.
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Offline SawTroll

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Re: Jonsered 590
« Reply #5 on: March 07, 2011, 07:43:58 pm »
Quote from: Cut4fun on March 07, 2011, 06:55:36 pm
Poulan 325 is 46mm and I got one.  The top end fits on the 490 590 5000 500 50 special to if one so desired a cheater saw.

Yes, I know - even though saw races doesn't interest me at all! 
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Offline Cut4fun

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Re: Jonsered 590
« Reply #6 on: March 08, 2011, 01:50:42 pm »
Quote from: SawTroll on March 07, 2011, 07:43:58 pm
Quote from: Cut4fun on March 07, 2011, 06:55:36 pm
Poulan 325 is 46mm and I got one.  The top end fits on the 490 590 5000 500 50 special to if one so desired a cheater saw.

Yes, I know - even though saw races doesn't interest me at all!

Me either anymore and post wasnt about racing, but the term I used was. Sorry about that confusion.
But what I was referring to, is you could bolt a PP 325 top 53cc on the 490 5000 500 50 special and gain a great deal of torque in the cut for a firewood saw with the same weight of the 49cc saw.
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Offline SawTroll

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Re: Jonsered 590
« Reply #7 on: March 08, 2011, 04:26:17 pm »
Quote from: Cut4fun on March 08, 2011, 01:50:42 pm
Quote from: SawTroll on March 07, 2011, 07:43:58 pm
Quote from: Cut4fun on March 07, 2011, 06:55:36 pm
Poulan 325 is 46mm and I got one.  The top end fits on the 490 590 5000 500 50 special to if one so desired a cheater saw.

Yes, I know - even though saw races doesn't interest me at all!

Me either anymore and post wasnt about racing, but the term I used was. Sorry about that confusion.
But what I was referring to, is you could bolt a PP 325 top 53cc on the 490 5000 500 50 special and gain a great deal of torque in the cut for a firewood saw with the same weight of the 49cc saw.
I guess so, or a P5500 one!


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Offline Cut4fun

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Re: Jonsered 590
« Reply #8 on: March 12, 2011, 07:27:33 pm »
Was out in the barn today and took some pics of a 5000+ 490 top end compared to the 590 top end.

Crappy cell phone pics.



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Offline man of stihl

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Re: Jonsered 590
« Reply #9 on: March 12, 2011, 07:38:38 pm »
so you would call the 590 a open port with a windowed piston? ???
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