2001 husqvarna 55 closed port?

[Finnrpm]

One way to check for cp vs. op on the 55 is to pull the top cover and look at the flywheel side rear (intake side) cylinder bolt access hole through the cylinder fins. The hole you'd stick your allen wrench down through to get to that cylinder bolt. On an open port saw that hole goes through 3 fins. On a closed port saw that hole goes through 6 fins. Hope this makes sense.

You mean these?

RV

 

[71dart]

Yes. The hole goes through 3 fins so it's an open port. On the closed port cylinder that hole would go through 6 fins.
At least this is case with the op 46mm jug and the cp 45mm cylinders. I can't speak for the op 45mm cylinder though.

You mean these?

RV

 

[Spotter]

You can buy an aftermarket one with the big scoop looking deflector for about $25-$30 and I recommend a muff mod for a closed port engine

What is a muffler mod ?

 

[Spotter]

Surely, but in the case of the 50 Special it is about 45mm open port vs. 45mm closed port - in the case of the 55 it is about 46mm open port vs. 45mm closed port, not quite the same thing.

There are a a couple of even better top end options than the 45mm CP of the 55 that also will fit those saws. Those are all CP of course, and are the 45mm of the Jonsered 590 and the 46mm of the P5500 and PP325 - but finding one of those isn't easy at all.

And what would those top end options be?

 

[Spotter]

What is a muffler mod ?

U mean like modifying a stock muffler

 

[SawTroll]

And what would those top end options be?

The ones I listed, Jonsered 590 (45mm/51cc) and P5500/PP325 (46mm/53cc). This "top end" family stated with the Partner P500/P5000.early 1980s - but I believe the Husky 55 is the only model still made today (in Brazil, for "third world" markets).

 

[rynosawr]

U mean like modifying a stock muffler

Yes, like cutting out the majority of the inner baffle where there are 4 holes under the spark arrester screen and then cutting the main hole outlet larger, then, reinstalling the spark screen.

 

[Spotter]

Does anyone know the difference between the 2 mufflers Husqvarna list as replacements the FF or FG

 

[rynosawr]

Where are you seeing the FF AND FG variations?


OEM muffler replacement part number

503749103

 

[71dart]

I wouldn't be too concerned about the muffler. The 55s didn't come with CATs and they're like an empty soup can with a baffle around the exhaust outlet.
A simple mod like rynosawr said above will breathe plenty.

 

[Spotter]

I don't really see a question here - but the closed port 45 mm/51cc 55 EPA saws (not Rancher) were sold in the US about 1998 - 2001.
This looks like one of those saws, made 2001 week 12.

http://www.barrettsmallengine.com/partslist/husqvarna5155-2000-05.PDF

So this is the exact model and correct parts list correct?

 

[SawTroll]

So this is the exact model and correct parts list correct?

That's the way it looks to me.

 

[Spotter]

OK thanks

 

[Spotter]

The only reason I asked is because Husqvarna couldn't tell me what it was . maybe she was just a ditz idk

 

[radio]

And what would those top end options be?

Hyway makes a 46mm CP top end! HLSupply carries them.

 

[radio]

Where are you seeing the FF AND FG variations?


OEM muffler replacement part number

503749103

As far as I know all the 50/51/55 mufflers are interchangeable/compatible, from a mounting and fit perspective.

 

[Spotter]

As far as I know all the 50/51/55 mufflers are interchangeable/compatible, from a mounting and fit perspective.

On the link that saw troll put up

 

[Spotter]

On the link that saw troll put up

2 diff part numbers

 

[rynosawr]

2 diff part numbers

Ok the 501766602 (FG) is the muffler with two louver baffle outlets. It is no longer available from Husky, it was the old version, and I have never seen one on a Closed Port, EPA Husky 55

It looks like this (not my ad, just a link to the pic)
http://www.ebay.com/itm/NEW-OEM-Hus...004905?hash=item43ef718c29:g:~zIAAOSwdj9XT13E


The 503749101 (FF), now superseded by 503749103 and similar is the muffler that came on your Closed Port, EPA Husky 55.

again, no affiliation, just the best pic I could find of the correct muffler

http://www.dlastore.com/e_store/muf...cial-51-55-rancher-epa-154-254-503749101.html

 

[Spotter]

Ok the 501766602 (FG) is the muffler with two louver baffle outlets. It is no longer available from Husky, it was the old version, and I have never seen one on a Closed Port, EPA Husky 55

It looks like this (not my ad, just a link to the pic)
http://www.ebay.com/itm/NEW-OEM-Hus...004905?hash=item43ef718c29:g:~zIAAOSwdj9XT13E


The 503749101 (FF), now superseded by 503749103 and similar is the muffler that came on your Closed Port, EPA Husky 55.

again, no affiliation, just the best pic I could find of the correct muffler

http://www.dlastore.com/e_store/muf...cial-51-55-rancher-epa-154-254-503749101.html

Thank u