Max RPM For A Husky 395???

[rahtreelimbs]

What is the factory max RPM for a Husky 395???

 

[Urbicide]

12,500 rpm.

 

[rahtreelimbs]

Thanx!!!

 

[Urbicide]

It was my pleasure.

 

[Evanrude]

So I've got a question about max rpm after a muffler mod. Some people on here say set it at max for the stock saw (per the manual). Then there are some guys who set it by ear and end up running 15000+ on saws. Which is the right way?

 

[blsnelling]

A muffler mod alone's not going to get you 15K. That's the result of a ported cylinder.

 

[Evanrude]

A muffler mod alone's not going to get you 15K. That's the result of a ported cylinder.

I was hoping you'd chime in. Ok, so more like 14k on muffler mod. My question still stands...

 

[rahtreelimbs]

I wouldn't twist it up too much past 12,500 on a 395. You get 15,000 rpm if you lean the snot out of it..........not a good thing!!!

 

[brncreeper]

I wouldn't twist it up too much past 12,500 on a 395. You get 15,000 rpm if you lean the snot out of it..........not a good thing!!!

I would have to agree with that statement. Just because someone “gets by” long enough to make a quick video of a turned up 15k saw, that does not make it ok to go against the factory specs.

 

[rahtreelimbs]

I wouldn't twist it up too much past 12,500 on a 395. You get 15,000 rpm if you lean the snot out of it..........not a good thing!!!

I would have to agree with that statement. Just because someone “gets by” long enough to make a quick video of a turned up 15k saw, that does not make it ok to go against the factory specs.

"Gets By" is about it. Saws operate on fuel.............not enough............no power!!!

 

[blsnelling]

Unless you have some experience tuning a 2-smoke by ear, I wouldn't go much past the factory setting with just a muffler mod. A muffler mod alone does not boost the RPMs that much. I'm guessing 500 RPMs is even optimistic. Some others will have to chime in here. Just remember, you can't just lean a saw out and turn the RPMs up like a volume knob. That will overheat the piston and seize it up quick. Then it won't turn any RPMs

 

[stevethekiwi]

I wouldn't twist it up too much past 12,500 on a 395. You get 15,000 rpm if you lean the snot out of it..........not a good thing!!!

Std here is just over 13,000. But ours are set up for non epa running 25:1 mix. different carb jet, coil, and muffler

wahoo!!!

 

[Lakeside53]

25:1 :jawdrop: :jawdrop: :jawdrop: I know NZ is on the other side of the date line, but surely not 20 years behind! :monkey:

 

[ray benson]

I would adjust the saw (H mixture screw) to cut best and have the most power with a long bar ,buried in a log or when stumpcutting. Then check the no load rpm with a tach. Keep the tach number for future reference. I don't use a big saw to cut limbs and small wood.

 

[SawTroll]

25:1 :jawdrop: :jawdrop: :jawdrop: I know NZ is on the other side of the date line, but surely not 20 years behind! :monkey:

+1 - I don't understand that either - please elaborate Steve......

 

[stevethekiwi]

+1 - I don't understand that either - please elaborate Steve......

Its what husky recommend here on large displacement saws 80cc + when running LS oil, as the fuel quality in NZ is quite poor. We had to do extensive fuel testing in the start of 2003 when we began trialing the 575's for sweden...

On big saws using XP oil we can safely run 50:1. HP oil 33:1