Husqvarna 353 Carb Tuning RPM

[Jonny Quest]

I just rebuilt the carby on my Husky 353. The saw is a 2006 model year. I have a saw tachometer I use to tune. I will set the idle speed to 2,700 RPM and then adjust the low-speed circuit. No worries there.

High-speed circuit -- I don't know the proper RPM number for adjusting the high-speed circuit. The RPM for my 372XP is 13,500 and my 390XP is 13,000. No idea what the little saw needs.

(Yes, I realize that one can tune "by ear" with the burble of the 4-stroking sound, but I like to tune by RPM)

JQ

 

[Jonny Quest]

Well, I think I just answered my own question. I found a 346XP / 353 "Workshop Manual" on-line and the Appendix shows that the H-Needle needs to be adjusted to 13,000 RPM with 16" bar and chain, properly fitted.

 

[Robin Wood]

I think it can go up to 14k
Depending on elevation and muffler type/mod

 

[Jonny Quest]

Well, this saw has a nice muff-mod. Also, I’m at 4,500 feet and regularly cut at 8,000+ feet, so I may consider a few more RPMs. Good advice. Thanks.
JQ