New motor have a question

[Purplehazecloud]

I have a new HF predator 420cc is there a proper way to "break in the motor"

 

[itsid]

yes,
see the manual:
http://manuals.harborfreight.com/manuals/69000-69999/69736.pdf
page 11

8. Break-in period:
a. Breaking-in the engine will help to ensure proper equipment and engine operation.
b. The operational break-in period will last about 3 hours of use. During this period:
• Do not apply a heavy load to the equipment.
• Do not operate the engine at its maximum speed.
c. The maintenance break-in period will last about 20 hours of use. After this period:
• Change the engine oil.
Under normal operating conditions subsequent maintenance follows the schedule
explained in the MAINTENANCE AND SERVICING section.

I'd say:
use fresh cheap oil,
let the engine run at 1/3 throttle for about 1.5 hours (without load),
change oil (same grade),
repeat at 2/3 throttle (again without load).
remove oil,
fill in oil specified in the manual, and you're done.

'sid

 

[firemanjim]

Send it to me...... I'll break it in for ya