Chainsaw Repair

Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Husqvarna => Topic started by: Cut4fun . on July 10, 2011, 11:41:14 am

Title: Husqvarna 3120 coil swap 272
Post by: Cut4fun . on July 10, 2011, 11:41:14 am
I had a stock 3120 that had the rev limited 10.5k coil and after installing the 272 type coil she was a whole different animal in rip cuts with just a 32" buried for testing fun in very dry american elm.  I had actually used a coil from a jonsered 630 625 (not real sure) or something that was just like the 272 coil just older coil.

Pic below isnt my 3120, but shows how to set timing right without using a degree wheel.

(http://i59.photobucket.com/albums/g289/doemaster789/CH3120/Copyofindexphp.jpg)

Title: Re: Husqvarna 3120 coil swap 272
Post by: Cut4fun on February 25, 2014, 01:48:07 pm
Just saving old pics of my stock 1992 husqvarna 3120.

With unlimited coil and out of wood it's turning 13.1K and it's unreal holding r's in the cut. The 10.5k stock coil to me was just holding it back. JMO



Title: Re: Husqvarna 3120 coil swap 272
Post by: tlandrum on February 25, 2014, 04:44:20 pm
kevin I haven't tried it yet but have heard you can also use a 394 coil and flywheel to make it unlimited.
Title: Re: Husqvarna 3120 coil swap 272
Post by: Cut4fun . on February 25, 2014, 05:07:45 pm
kevin I haven't tried it yet but have heard you can also use a 394 coil and flywheel to make it unlimited.

I havent heard anything as I got out of all of that stuff.  I am finding old pics etc here there and saving is all.
Title: Re: Husqvarna 3120 coil swap 272
Post by: Cut4fun on February 28, 2015, 11:59:49 am
Stumbled across this info Mitch posted. mweba = The 55 coil is the one I transplanted to the 3120 I built. On the larger fly wheels, one must grind the pickup angle slightly for sufficient spark.