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Author Topic: McCulloch 610  (Read 2057 times)

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Offline Al Smith

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Re: McCulloch 610
« Reply #10 on: December 16, 2013, 03:46:46 pm »
No actually pulling the screen on that thing makes all the difference in the world .

I have the last saw my deceased father ever owned and it is a PM 610 .I don't know exactly what he did to it but in it's day it would out gun a Stihl 042 which is a half a cubic inch larger displacement .

A piston ported Mac really there isn't much that can be done because raising the compression would be very difficult.About the best you could do is maybe widen the exhaust a tad bit . The transfer system is unique from any saw ever made using semi closed transfer grooves through a windowed piston .If the 610 is like most other 10 series style the exhaust port opening is already around 96 degrees after ,high enough .
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Offline doreadeal

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Re: McCulloch 610
« Reply #11 on: December 16, 2013, 04:14:09 pm »
Yeah my specimen has the screen gone already, maybe that's why it seems a bit strong for a 60cc.
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Offline brokenbudget

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Re: McCulloch 610
« Reply #12 on: December 16, 2013, 05:49:37 pm »
lame. thread with no pics.


 there. fixed it :)
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Offline Al Smith

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Re: McCulloch 610
« Reply #13 on: December 16, 2013, 06:03:34 pm »
Oh I can match that .This gem looked nearly new .Dead from a bad coil,very low hours .It belongs to my son now .I think including shipping and a new coil I had less than 75 bucks in it .Worth every penny .
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Offline doreadeal

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Re: McCulloch 610
« Reply #14 on: December 17, 2013, 06:22:09 am »


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Offline doreadeal

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Re: McCulloch 610
« Reply #15 on: December 17, 2013, 06:24:23 am »



The hole under the top right mounting hole is/was the clogged port.
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Offline fordfairlane78

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Re: McCulloch 610
« Reply #16 on: December 18, 2013, 06:05:40 am »
Is this saw the same as the timberbear? I have ran across a couple of those very cheap but built to last for sure. Each needed the oil feed line replaced though.
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Offline doreadeal

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Re: McCulloch 610
« Reply #17 on: December 18, 2013, 06:25:08 am »
From my understanding they are close, think the bear is 5cc less. I know at least some parts interchange.
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Offline fordfairlane78

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Re: McCulloch 610
« Reply #18 on: December 18, 2013, 08:50:05 am »
 looked it up on acres site and yes the timberbear is a 3.4ci to the 610 being 3.7ci. I was impressed with its power and smooth operation but it is a tank so just like me it could afford to loose a few lbs!
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Offline doreadeal

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Re: McCulloch 610
« Reply #19 on: December 18, 2013, 09:14:31 am »
I'm a real big fan of durability. Put a clutch driven bar oil system and you could add another 5 lbs for all o care.
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