Engine Break-In - Bennche Bighorn 400 Owner's Manual

is as important as a proper break-in period.
Careful treatment of a new engine and drive
components will result in more efficient
performance and longer life for these
components. Perform the following
procedures carefully.
CAUTION:
Excessive heat build-up during the first
●
three hours of operation will damage
close-fitted engine parts and drive
components. Do not operate at full throttle
or high speeds during the first three hours
of use.
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 25 hours.
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
Operation 6-7