Husqvarna 350 carburetor adjusting

[goosemaster]

I need some advice from some experienced timber cutters; I'm working on a Husqvarna 350 chainsaw and I have the carburetor adjusted where it has good quick trigger response, idles fine, good top end rpm's but when I try to cut a log with it it wants to bog down and becomes practically useless unless you baby it thru the log. Chain is sharp. How and what jet needs to be adjusted different to where it will cut thru the log like it's suppose to? Any suggestions would surely be appreciated. Thanks in advance to anyone who replies.

 

[Deleted member 117362]

Tank vent clear, muffler blocked?

 

[goosemaster]

They are both fine.

 

[Mattyo]

New impulse line?

 

[goosemaster]

All new fuel lines.

 

[Mattyo]

No....impulse line

 

[goosemaster]

Where is it?

 

[Mattyo]

Tiny curly line between the intake partition wall and the carb boot adapter. They crack and are best to replace with oem.


I assume you've already put a metal camp on the boot and resealed the bearing cup and added a muffler support

 

[Huskitoter]

Ever put a carb kit in it? A decade-old diaphragm doesn't work as well as a new one.

 

[goosemaster]

It has a new carb on it. It runs fine like I said. It starts good, idles good, quick trigger response and good rpm's. It just wants to bog when you're cutting a log.

 

[cuinrearview]

Where did the new carb come from? Does it have a purge bulb?

 

[Mattyo]

Compression?

 

[goosemaster]

No primer bulb; aftermarket carb.

 

[goosemaster]

The saw runs good just running it's when you try to cut a log it bogs down. The chain is sharp.

 

[cuinrearview]

Low compression=low power under load.

And aftermarket carbs are notoriously hit and miss. What was the OEM one doing?

 

[Mattyo]

Again.... did you replace the intake clamp?
Did you reseal the base?

Pressure test?

Compression test? How does the exhaust side of the piston look with the muffler off?

 

[Mattyo]

If that tiny impulse line is cracked it'll mess you up too...


Here's a starting point for 350

 

[grizz55chev]

If you think it needs richened up, turn the “ H” screw out ( counter clockwise ) in 1/8 turn increments until you get the saw to not bog out. The saw should 4 stroke when you lift out of the cut.

 

[goosemaster]

Thanks grizz55chev; that's what I wanted to know.