Husqvarna 365 carb adjustment question

[StoneyMeadowMaple]

I got this 365 Husqy going with a carb that is standard to a 365xp or 372xp, the 365 is open port, I have found just one spec that lists 10,200 rpm max RPM, it hesitates and loads up if it’s set that rich, throttle response is best around 11,999-12,300 rpm, (my tach jumps around a bit) I don’t want to lean it too much, and its a loud saw, no baffles, the later models, from what I read were closed port and had a rev limiter around 13,500rpm any thoughts on settings? What about Idle rpm?

 

[NSEric]

12000-12500 max rpm is likely where it should be set.
Idle is just under 3000 rpm.
I dont use my tach much, I tune by ear and cut speed in a big stick of wood. I dial in the idle then set the high rich so it fourstrokes and lean the high out a little at a time until the fourstroking clears up under load and it cuts it's fastest. I find they cut the best just a hair rich, lean and over revving will slow them down in a big cut.

 

[StoneyMeadowMaple]

I ran 2 tanks through it today, 12,300 ish was too rich, i leaned it out just a tad by ear. People talk about 4 stroking or dieseling, not exactly sure what that is supposed to sound like but it has a flutter at super high rpm, in any event it leaning it out got the throttle response I was looking for and it seems to do well, the plug wasn’t stark white, wasn’t jet black either, I would have liked a touch more brown, but I will monitor it.
It’s no 562xp for sure, but its a solid firewood saw, very pleasant to use and starts instantly, it is loud though, the muffler is caved in a little, I might try opening it up a little and see if it improves. I would describe the performance as similar to the Stihl 042 my dad had.