STIHL MS500i Break-In

[Lindley]

I know this is a controversial topic, but I’ve always been one to break in engines rather it be a small engine or a new truck. Old habits die hard…

So for those of you that believe in break-in, what do you recommend I do with this fancy no-carb fuel injected rig?

Traditionally, I would run a couple of gentle tanks with a mix at 40:1 and adjust the carburetor to compensate until break-in was complete. But I’m not sure if the electronic fuel injected saw is made to run anything other than 50:1.

Any advice and help is appreciated. Thank you!

 

[dall]

run it like you plan on running it
first tank i ran through mine was 404 28 inch bar

 

[Redfin]

They run great on 40:1 while milling.

 

[Lindley]

Broke her in this morning. Just added a small capful of extra oil to each tank. Didn’t have any troubles at all.

Three tanks burned while cutting at various speeds in soft pine with not a lot of high revving or hard pulls.

Can’t believe how responsive the throttle is on the 500i. Going to be a fun saw to run.

 

[Spladle160]

Man you must have a small wood stove