Author Topic: Husqvarna 338XPT  (Read 3147 times)

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Offline Cut4fun .

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Re: 338 XPT Husqvarna
« Reply #20 on: January 19, 2013, 10:46:20 am »
Wow RB says there is BIG gains to be had on this saws.  RB did  a Jonsered 2139 = 338

Is this the mod done on your 338 Willard?

Quote
I run mine with a 9/16th ID tube. The best place to add it is about an inch below the existing tiny port, and angled downward at 30 degrees or so. A hole will need to be formed in the plastic cover. Make the tube the proper length so that it ends just short of the plane of the cover, to eliminate being burned. Retune carb, and be prepared to cut 25-40% faster than stock.


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Offline Cut4fun .

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Re: 338 XPT Husqvarna
« Reply #21 on: January 19, 2013, 11:03:30 am »
Digging up info.

Whats the deal with the updated sparkplug covers?  Both are missing on the 2 I got so this is a updated fix I guess.  Anybody know anything to share?

One new genuine Husqvarna rear end fix kit # 537409801.
If your saw was originally equipped with the old style spark plug cover, you will have to drill a hole in your case to install this new kit. Instructions are included with the kit.
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Offline Cut4fun .

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Re: 338 XPT Husqvarna
« Reply #22 on: January 19, 2013, 11:19:46 am »
Everything I have read on the calif edition 338 45cc is they run and sound like a de-tuned 338  stock. Now ported and carb retune I bet those extra cc comes alive.

Genuine Husqvarna Piston & Cylinder Kit Assembly (43mm) California Version.  List  537074903 CYLINDER COMPLETE $214




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Offline HolmenTree

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Re: 338 XPT Husqvarna
« Reply #23 on: January 19, 2013, 12:26:47 pm »
Wow RB says there is BIG gains to be had on this saws.  RB did  a Jonsered 2139 = 338

Is this the mod done on your 338 Willard?

Quote
I run mine with a 9/16th ID tube. The best place to add it is about an inch below the existing tiny port, and angled downward at 30 degrees or so. A hole will need to be formed in the plastic cover. Make the tube the proper length so that it ends just short of the plane of the cover, to eliminate being burned. Retune carb, and be prepared to cut 25-40% faster than stock.



Yes same idea as Rogers 9/16" outlet. I'm gonna change it though, been burning holes in my work pant legs. I will enlarge the original outlet to 9/16"- 5/8" and silver solder a larger deflector on. Really brings these saws alive with this mod.
My 2009 5100131 338XPT has the same "new edition" sticker like yours.
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Offline ncarr275

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Re: 338 XPT Husqvarna
« Reply #24 on: January 19, 2013, 12:30:51 pm »
Right on cut4fun! Now you can play

Offline HolmenTree

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Re: 338 XPT Husqvarna
« Reply #25 on: January 19, 2013, 12:37:54 pm »
I see potential with the 45cc California p/c. Remember the MS200 is only 35cc.
I have no clue if or what porting changes were done to the 45cc cylinder, clamshell base offers poor milling surface so removing gasket probably only option. Bigger carb ,raise intake skirt by a mm, maybe a pair of finger ports. I believe these California saws have a cat muffler [get rid of it ]
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Offline HolmenTree

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Re: 338 XPT Husqvarna
« Reply #26 on: January 19, 2013, 03:16:18 pm »
Here is why I want to re route my outlet. Didn't quite burn thru the inner lining :o
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Offline Cut4fun

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Re: 338 XPT Husqvarna
« Reply #27 on: January 19, 2013, 05:18:03 pm »
Well I learned something today cleaning these up and checking oilers etc. The really clean one (not used as much) I thought was a 2011 and newer is the older 05 one. The one with more time on it and says new edition on sticker is a 2010.

You will get a good laugh on how I figured out something was amiss.  :-\ :-[

I cant adjust the carb at all on the 2010, has some kind of metal  stops it appears to keep me from getting to the carb H and L screws to adjust.  I'm thinking drill them out or try the drywall screw method.  How has others pulled the metal looking carb stops. 

05 one had plastic carb stops I will trim sometime.

Coils the 05 turns 13.8k to 13.9k .  The   10 I cant adjust and turns 12.8k and I was wondering do any of these come with a rev-limited coils? 
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Offline Cut4fun

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Re: 338 XPT Husqvarna
« Reply #28 on: January 21, 2013, 06:58:28 am »
On the 2010 they have metal caps covering the H and L.  There is no adjustment the way it is now.

I'm guessing drill them? How are you guys doing it.
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Offline Al Smith

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Re: 338 XPT Husqvarna
« Reply #29 on: January 21, 2013, 09:09:48 am »
I've never seen an actual 338 but I do have three 335's the trimmers tried out during the big ice storm a few years  back .Now they do not have the power of a 200T although they certainly have enough power .All three were taken out of service after about 1 year because of oiler failures .It was only about a 10-12 dollar fix but a 100 dollar labor bill because you have to field strip the damned things to get to the pump shafts .I'm thinking those things were 250-300 when an 020T or maybe a 200T were a shade over 500 bucks .

In all honesty though I like the balance of the 335 as compaired to the 200T .I don't like the muffler that burns the dickens out of you because they break the muffler guards off or the plug that shocks the dickens out of you from getting banged on stuff and punching a hole in the boot .

I have good intentions of souping one of those little saws up but so far haven't done so .Too many other irons in the fire it seems .Besides that this time of the year cold and all I really kind of loose my enthusiasm .

 

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