Break in time for a new saw

[sb47]

Over the years I have seen some post where people are breaking in there new saw and they say it's important to break them in correctly. I'm not so convinced a 2 stroke saw needs break in time.
I have had 7 or 8 saws and I never broke them in. I run them hard from day one and never have had an issue.
I raced motocross and I never broke in those motors ether and they all ran great with no issues at all.
So whats all the fuss about?
The only exception is if a new motor has a piston that is not heat treated may need a few heat cycles to help harden the piston. Even then it only takes a few heat cycles to get it done.
I run them hard, just like I would normally run them, but only for 10 to 15 min then let it cool down and do it again.
One or two heat cycles and your good to go.
Any thoughts on this matter? How do you run your saws. wide open, or do you break them in?

 

[Ryan'smilling]

That's about what I've done. A few heat cycles, then just regular use. By heat cycle, i mean I'd start it up, warm up at idle for 30-60 seconds, cut at WOT with the bar mostly buried for 15-20 minutes, bucking firewood for example, which does allow a few seconds between cuts, then idle for a minute or so before shutdown.

Personally, the only thing I'd really avoid is WOT with no load, which i try to avoid in general. I guess I wouldn't want to turn on a brand new saw for the first time and go do a bunch of limbing. Probably just superstition though. My buddy who has a tree service starts all his saws and pegs the throttle for about 15-20 seconds right away, even on a brand new saw. Makes me cringe, but I guess it works for him.

 

[farmer steve]

after spending bukoo bucks for my ms 241 i did a bit of reading here and and other places. i EVEN read the manual. my consensus was to run the saw in wood but no WOT out of wood. getting the rings seated was the most important things i read. i did like you said Sb and run for 10-15 minutes then shut down.

 

[GVS]

Over the years I have seen some post where people are breaking in there new saw and they say it's important to break them in correctly. I'm not so convinced a 2 stroke saw needs break in time.
I have had 7 or 8 saws and I never broke them in. I run them hard from day one and never have had an issue.
I raced motocross and I never broke in those motors ether and they all ran great with no issues at all.
So whats all the fuss about?
The only exception is if a new motor has a piston that is not heat treated may need a few heat cycles to help harden the piston. Even then it only takes a few heat cycles to get it done.
I run them hard, just like I would normally run them, but only for 10 to 15 min then let it cool down and do it again.
One or two heat cycles and your good to go.
Any thoughts on this matter? How do you run your saws. wide open, or do you break them in?

On any new engine,I break them in just like the owner's manual says to.If a problem develops early on I've something to fall back on.

 

[sb47]

I've done a lot of motocross racing and one thing that everyone does at the start of every race. When on the start line the throttle is pinned till it's banging off the rev limiter for up to 30 sec with no load. Then it wide open for the duration with many long jumps where rider bang the rev limiter on every jump.
I've done this myself for years, and my motors never have issues. Even on heavily moded motors that have zero run time seem to not need more then a few heat cycles to hold up well.

Witch makes me think of top fuel dragsters that get fresh ring sets before every race. They have zero run time yet they run them wide open. But to be fair, dragsters do blow up quite often.

 

[turnkey4099]

after spending bukoo bucks for my ms 241 i did a bit of reading here and and other places. i EVEN read the manual. my consensus was to run the saw in wood but no WOT out of wood. getting the rings seated was the most important things i read. i did like you said Sb and run for 10-15 minutes then shut down.

And NEVER let the dealer start a new saw. He will run it WOT and hold it there for several seconds.

 

[muddstopper]

And NEVER let the dealer start a new saw. He will run it WOT and hold it there for several seconds.

I watched a tree guy come unglued when the dealer started his new saw. Dealer ran wot at startup. Customer got so mad he refused to accept the saw and demanded his money back.

 

[echomeister]

I was advised to run my cs 590 for two minutes wide open when first started by the dealer. Nope I will never buy a saw that the dealer has run and will take it home with me to break it in.