when is my new saw broke in?

[bdenny]

My father has been getting pretty friendly with my husky 350 while clearing his new building lot. Thats okay because it gives me an excuse to get a new 353 I have been checking out. I have a giant rock maple someone hired me to remove this weekend (almost 40" on the stump). I will use my 372 for the bigger share of it but i want to get and use my 353 by then. How many rpm should I set it for initial break in? Should I mix the first batch of gas at 40:1? How many tanks of light cutting should I do before I am able to bury the nose of this thing in a bone dry rock maple? I will be running a 16" bar and stihl rs chain. Thanks for any advice.


brent

 

[eyolf]

I imagine a few will disagree, but I have never really ever babied new stuff to break it in. I've never even mixed up special pre-mix. Just gas up and go to work.

I have a Jons 2149, just like the 351 Husky, and 16" bar w/.325 chain isn't too much for it in red oak, elm, or box-elder. I imagine your new 353, with a bit more grunt, will have no trouble at all.

 

[ricksvar]

I used a 32:1 fuel mix my first couple tanks of fuel breaking in my 372.Did not push any cuts maintaining highest rpm(factory carb settings)possible and cut only 6"-14"(a true waste of this saw's abilities)diameter wood during breakin.

After a couple tanks of fuel I started cutting larger wood feathering the cut with the 20" bar having full load.Currently use Stihl oil with a 40:1 ratio,never been more impressed with a new saw.

I'am not saying this is the proper way to break in a saw,just the way I broke in this one.

Rick

 

[Tony Snyder]

Most people just take a new saw and use it normally. I send them out with a 40 to 1 shop mix for the first tank.

I'd say it takes about 5 tanks of gas to loosen a saw up. By that time it is usually idling too fast and needs tweaked a bit.

I wouldn't recommend a person break in a new saw in 95 degree weather.

I had an experience with a 2083II Jonsered where I believe the saw was still getting stronger (breaking in ) at about 25 tanks of gas.

 

[toolmaker]

I have a new Stihl MS460. The dealer has told me with all my new saws that they need about 5 tanks of gas to break in. I only run Stihl 50:1 mix in 94 octane gas. This saw has about 8 tanks through it, and it is getting stronger every time I cut. I am always careful not to over-rev with no load on the engine.

 

[wmthrower]

My dealer told me the same thing. He told me that 89 octane and higher only. The oxygenated gas we have here really kill a saw.