PACIFIC RIM INT’L WEST PST250-1, Manual, Page: 17 / 45

BREAK-IN FOR A NEW MOTORCYCLE
The forward explains how important the proper
running-in is to achieve maximum life and
performance of your new motorcycle. The following
guidelines explain proper running-in procedures.
The following table shows the maximum
recommended throttle opening during the break-in
period:
Initial 800 km less than 1/2
To 1600km less than2/3
VARY THE ENGINE SPEED
The engine speed should be varied and not hold
at a constant speed. This allows the parts to be
“loaded” with pressure, and then unloaded,
allowing the parts to cool. This aids the mating
process of the parts.
It is essential that some stress be placed on the
engine components during bread-in to ensure this
mating process. Do not, though, apply excessive load
on the engine.
AVOID CONSTANT LOW SPEED
Operating the engine at constant low speed (light
load) for a long time can cause parts to graze and
not fit close to each other. Allow the engine to
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