Author Topic: Husqvarna 550XP Muffler Mod (Read 2527 times)

Tzed250 · « **on:** September 03, 2012, 02:08:04 pm »

I modded the exhaust on my 550XP. Some pictures and video.

Untitled by zweitakt250, on Flickr

Stock

http://www.youtube.com/watch?v=yWujJUGLBJQ&feature=youtube_gdata_player

Muffler Mod

http://www.youtube.com/watch?v=6vZQcHGODFo&feature=youtube_gdata_player

Oregon 72CL square chisel

http://www.youtube.com/watch?v=3N0tMxR8SbM&feature=youtube_gdata_player

Cut4fun . · « **Reply #1 on:** September 03, 2012, 02:46:50 pm »

What was the chain on stock and MM video's before the CL video?

Tzed250 · « **Reply #2 on:** September 03, 2012, 04:58:38 pm »

The chain was Oregon 20LPX with 3-4 sharpenings on it. Fresh edge for
The stock video.

Cut4fun . · « **Reply #3 on:** September 03, 2012, 06:39:04 pm »

Quote from: Tzed250 on September 03, 2012, 04:58:38 pm

The chain was Oregon 20LPX with 3-4 sharpenings on it. Fresh edge for
The stock video.

I didnt time anything. But that CL looked like the biggest gain in cutting cut times.

Tzed250 · « **Reply #4 on:** September 03, 2012, 10:50:01 pm »

Folks that haven't used square chisel really need to find out what they are missing.

brokenbudget · « **Reply #5 on:** September 04, 2012, 05:59:10 am »

most people are cutting wood thats too dirty to bother with square chisel

HolmenTree · « **Reply #6 on:** September 04, 2012, 09:45:57 am »

I never run square ground for a work chain, but at a GTG or the chainsaw race at the local fair I put my effort into a fine edge on a square ground. Only takes a couple knots and have to touch it up again.

Cut4fun . · « **Reply #7 on:** September 04, 2012, 12:33:01 pm »

Quote from: Tzed250 on September 03, 2012, 10:50:01 pm

Folks that haven't used square chisel really need to find out what they are missing.

I just bet switching the 550 to 3/8 RS or LG LGX would see pretty much the same thing ALMOST.

Least the 50cc 346's I tested on did going from 325 to 3/8 7.

Tzed250 · « **Reply #8 on:** September 04, 2012, 01:20:57 pm »

It might. I went from .325-7 to 3/8-7, so you have the chain speed increase. My square filed RS has always whipped my round filed RS, so I'm fairly confident this would be the fastest combo on the saw. One great think about square on a limbing saw, very few cutters on a 16" loop!

Cut4fun . · « **Reply #9 on:** February 05, 2013, 11:29:51 am »

Dang I just found this thread again.

Tz did you open up the little hole that is inside near the cylinder exhaust exit into muffler. I am thinking that needs to be opened too in my pee brain.

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Author Topic: Husqvarna 550XP Muffler Mod (Read 2527 times)

Tzed250

Husqvarna 550XP Muffler Mod

Cut4fun .

Re: Husqvarna 550XP Muffler Mod

Tzed250

Re: Husqvarna 550XP Muffler Mod

Cut4fun .

Re: Husqvarna 550XP Muffler Mod

Tzed250

Re: Husqvarna 550XP Muffler Mod

brokenbudget

Re: Husqvarna 550XP Muffler Mod

HolmenTree

Re: Husqvarna 550XP Muffler Mod

Cut4fun .

Re: Husqvarna 550XP Muffler Mod

Tzed250

Re: Husqvarna 550XP Muffler Mod

Cut4fun .

Re: Husqvarna 550XP Muffler Mod

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