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Jonsered 2141 2145 2150

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660magnum:
Of this family of saws, 2141, 2145, 2150: They are a plastic case home owner chainsaw. 2141 = 40mm, 2145 = 42mm, 2150 = 45mm Bore

The 2150 is the same as the Husqvarna 350 45mm with the removable transfer covers on the cylinder and the dished piston. Take notice that aftermarket pistons are usually flat topped if the piston has been replaced. The 2150 has a little bearing cap that goes between the plastic case and the cylinder. The cylinder itself is the same as the Jonsered 2152 and Husqvarna 353. To help add unneeded confusion there is a early Husqvarna 350 that is 44mm and earlier 351 44mm. I think the Husqvarna 351 and the Jonsered 2149 are pretty much the same chainsaw?

2141, 2145, & 2150 IPL August 2000
www.jonsered.com/ddoc/JONI/JONI2000_AAaa/JONI2000_AAaa_I0000050_.pdf

2141, 2145, & 2150 IPL June 2006
www.jonsered.com/ddoc/JONI/JONI2006_AAaa/JONI2006_AAaa_544907301.pdf

The 2152 is like the Husqvarna 353 with a magnesium crankcase, 45mm flat top piston and removable transfer covers. This is considered by Jonsered as a semi professional design.

It is often confusing when looking for parts for the 3 cube or 45-50cc Jonsered and Husqvarna chainsaws as there's a lot of compatibility. What I mean is that the advertised part may fit but be bigger or smaller than the original saw or you may need the 2150 crankcase adapter on the 2141 and 2145 crankcases? You need to be very familiar with all of this family of saws so that you know how the part you are buying compares with what is on your chainsaw.

Take note that the 2141 & 2145 are plastic crankcase designs like the 2150 but have a clamshell cylinder whereas the top half of the crankcase is made onto the cylinder. The 2150 has a crankcase top adapter piece and uses the same cylinder as the 2152 but with a dished piston instead of a flat top piston.

2152 IPL  2004 . . .
http://www.jonsered.com/ddoc/JONI/JONI2004_AAaa/JONI2004_AAaa_106398763.pdf

The Jonsered 2153 is pretty much the same as a Husqvarna 346XP New Edition. This is the February 2009 IPL
www.jonsered.com/ddoc/JONI/JONI2009_AAaa/JONI2009_AAaa_20.pdf

The Jonsered 2149 is a Magnesium case 44mm bore chainsaw. IPL May 99 It is more or less a 44mm bore  predecessor to the 2152
www.jonsered.com/ddoc/JONI/JONI1999_AAaa/JONI1999_AAaa_I9900023_.pdf

The Jonsered 2253 is a Auto Tune Strato saw more like the Husqvana 550XP and is not compatible with the non strato saws above.
www.jonsered.com/ddoc/JONI/JONI2014_AAaa/JONI2014_AAaa_CS2253CS2253WH_2014-12.pdf

Cut4fun .:
I just remembered this. Thanks for digging.

Tractorsaw1:
From what I could find the 2149 = 351.  I picked up a 2149 "engine" that had the case busted in a few places but stated the cylinder was good on the cheap.  I did some widening & blending & assembled it on a 2152 minus base gasket & it really surprised me.  You can push on this more than I thought I could.  This is a 45mm cylinder, removable transfer covers, & a flat top piston.  I am gonna do a little more testing before I upgrade to the NE cylinder & see what fun I can have with it.  This is the used ring that was on the piston, & I thought it was pretty snappy!

http://youtu.be/m4fXeM3YXps

660magnum:
Did pretty good

Spike60:
Real good, but the 2149/351 was a 44mm cylinder. Straight open port design which may be why it often surprises people, as most guys tend to dismiss them. They do run real nice with just the basic changes that you did.

Perfect saw for breaking down those tops, isn't it?

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