Coleman HS400UTV-2 Owner's Manual page 81

Use of any engine oil not recommended
●
in this manual will cause severe damage
to the engine。
Engine Break-In
There is never a more important period in the
life of your vehicle than the period between
zero and 25hours.
For this reason, we ask that you carefully
read the following material. Because the
engine is brand new, you must not put an
excessive load on it for the first several
hours of running.
During the first 25 hours, the various parts in
the engine wear and polish themselves to
the correct operating clearances.
During this period, prolonged full throttle
operation or any condition that might result in
excessive engine heating must be avoided.
However, momentary (2-3 seconds
maximum) full throttle operation under load
does not harm the engine.
Each full throttle acceleration sequence
should be followed with a substantial rest
period for the engine by cruising at lower
rpm's so the engine can rid itself of the
temporary build up of heat. If any
abnormality is noticed during this period,
consult a service center.
0-10 Hours:
Avoid continuous operation above half
throttle. Allow a cooling off period of five to
ten minutes after every hour of operation.
Vary the speed of the vehicle from time to
time. Do not operate it at one set throttle
position.
10-25 Hours:
Avoid prolonged operation above 3/4 throttle.
Rev the vehicle freely but do not use full
Operation 6-8