Any sources for adjustable 3120xp carb's?

[StephK87]

I've been looking for an fully adjustable 3120 carb for some time now. In germany you hear a lot of "early 3120 with adjustable carb" fairy tales, I don't think they are true at all.

But maybe there is someone talented in this forum who can modifiy a carb with an adjustable H side screw and ship it to germany?

it's a long time project, no hurry

 

[Time's Standing Stihl]

@Mastermind

 

[Mastermind]

Did someone page me?

 

[Sleeper]

Did someone page me?

Yes, Dr. MM, we paged you. Patient needing a new carby, one that is of a proper working order... otherwise patient may pass out or die altogether...

 

[Mastermind]

Yes, Dr. MM, we paged you. Patient needing a new carby, one that is of a proper working order... otherwise patient may pass out or die altogether...

I can do that....

 

[StephK87]

I can do that....

That would be a fine thing, thanks! I'll send you a pm later[emoji6]

 

[Mastermind]

That would be a fine thing, thanks! I'll send you a pm later[emoji6]

I'll be here.

 

[Derf]

Info to read

http://www.forestryforum.com/board/index.php?topic=50526.0
https://www.arboristsite.com/community/threads/basic-3120xp-mods.88134/

I thought I read some posts somewhere about people drilling out the high side on the carb to put in a needle screw.

https://www.arboristsite.com/community/threads/mastermind-meets-the-husqvarna-3120.202384/

 

[Mastermind]

Info to read

http://www.forestryforum.com/board/index.php?topic=50526.0
https://www.arboristsite.com/community/threads/basic-3120xp-mods.88134/

I thought I read some posts somewhere about people drilling out the high side on the carb to put in a needle screw.

https://www.arboristsite.com/community/threads/mastermind-meets-the-husqvarna-3120.202384/

Both carbs I had done in Canada were totally ruined.

Cliff Helsel then taught me how to do them correctly.

 

[StephK87]

Thanks for the infos so far! Any thougts on a 084 rod? Some say the orignal rod is the weak point on that saw.


My 3120 is mildly ported with a sqish/base cut (0,024" clearance), a modded h-jet and retimed flywheel with a unlimited 272 coil. But i didn't get it to 100% in case of the tune without a fully adjustable carb i think. That's why I'm going to order a MMWS modded carb in the near future

Here on our last GTG, it's ok but... mhh far from optimal wood is ash

 

[Mastermind]

Yep......the rod will give up if you run it over 13,500 much. I just build real work saws.....so I don't stress over it. Now if I was doing a cant cutter.....

 

[StephK87]

Holy cow 13500 is way more i wanted on my saw now it spins between 11000-11500, i think 12000-12500 max with prober tune would be the sweet spot (maybe a tad lesser for milling). What you think?

 

[tree monkey]

the 084 rod is longer, can't remember how much

 

[blsnelling]

Then when you get real ambitious, you can put a 090 topend on it At least I think that's what they're doing. Way out of my league.

 

[Mastermind]

Holy cow 13500 is way more i wanted on my saw now it spins between 11000-11500, i think 12000-12500 max with prober tune would be the sweet spot (maybe a tad lesser for milling). What you think?

Just tune it so it clears up under a heavy load. Forget RPM. Tune it so it works well for you.

 

[StephK87]

Then when you get real ambitious, you can put a 090 topend on it At least I think that's what they're doing. Way out of my league.

i think John Reilly did something like that, way to crazy. I need that saw for milling in first place, it should be dependable.

 

[blsnelling]

Hotsaw builders have been doing it for several years.

 

[mdavlee]

the 084 rod is longer, can't remember how much

It's not much. Maybe 2mm sound right. 372 rod is a little longer than a 460/461 rod and will give you a couple mm to cut squish and not touch the base too for someone who wants to build a crank like that.

 

[Al Smith]

They use an 084 rod and an off set pin on the 140 cc 3120 hot saws .Falicon in Florida is one of the shops that can do it .Keep in mind that's only one step in building one of those things.The time everything is done you'd have a kings ransom in that thing .I like a fast saw just not that much .