Sharksj

Hi. I have a Saito 100 (4 stroke) in an Extra 300.
Whats the best way to "break in" the engine?
Should I run it full thottle for 1 min then idle for 1 min then repeat.
Someone told me that.
Thank for your help.

RCKen

My Feedback: (9)

The best method is to follow the instructions that are included in the manual for the engine. One very important step that is in that manual is step #8 on page 6 of the manual. It states:

There are always a lot of "somebody told me" in this hobby, and that is especially true for engine break-in. But I have always been of the thought that the manual should always be your number 1 source of information in the break-in of your engine. Especially when it's from a good company such as Saito or OS. They know their stuff and you can't go wrong following their instructions.

Ken

bassmanh

My Feedback: (5)

shark,

the best thing to do is go by what the MFG suggest look in your manual it should explain all you need to know in there.



EDIT= dang ken you beat me by a few seconds again LOL

bassman

Sharksj

Thanks.

2slow2matter

My Feedback: (1)

Do not run that engine at full throttle for at least one tank full.
The saito 100 is an incredible engine, you will absolutely love it.

42etus

My Feedback: (2)

No! That is a breaking procedure for ABC 2-cycle engines. To break in your Saito, turn the HS needle out about 4-5 turns (very rich). Start the engine and let it run slowly, only about 4000 rpm. Use a tach, you can't judge the rpm's of a 4-stroke as easily as a 2-stroke. Keep the rpms low! After a tank has gone through it, lean it some, maybe to 3 turns out and run another tank through it at 4000 rpm. After that adjust the HS needle to run well and go fly it. Keep it a little on the rich side for maybe a dozen flights or so. Adjust the LS needle as needed for a good idle and smooth transition.
Paul