Cleaning And Storage; Cleaning - Yamaha YTZ250S 1986 Service Manual

1. After the break-in period is com-
pleted, check the entire machine for
loose fittings and fasteners. Tighten
all such fasteners as required.
2.
When any of the following parts have
been replaced, they must be broken
in.
CYLINDER AND CRANKSHAFT:
About one hour of break-in operation
is necessary.
PISTON, RINGS, GEARS:
These parts require about 30 minutes
of break-in operation at half-throttle
or less. Observe the condition of the
engine carefully durin{J operation.
1-17
CLEANING AND STORAGE
Cleaning
Frequent cleaning of your machine will
enhance its appearance, maintain good overall
performance, and extend the life of many
components.
1. Before washing the machine, block off
the end of the exhaust pipe to prevent
water from entering. A plastic bag
secured with a rubber band may be used
for this purpose.
2. If the engine is excessively greasy, apply
some degreaser to it with a paint brush.
Do not apply degreaser to the chain,
sprockets, or wheel axles.
3. Rinse the dirt and degreaser off with a
garden hose; use only enough pressure
to do the job.
Excessive hose pressure can force water
into wheel bearings, front fork seals, and
transmission seals. Avoid using high-
pressure hoses such as those found in
coin-operate car washes.
4. After the majority of the dirt has been
hosed off, wash all surfaces with warm
water and a mild detergent. Use an old
toothbrush to clean hard-to-reach
places.
5. Rinse the machine off immediately with
clean water, and dry all surfaces with a
soft towel or cloth.
6. Immediately after washing, remove ex-
cess water from the chain with a paper
towel and lubricate the chain to prevent
rust.
7. Clean the seat with a vinyl upholstery
cleaner to keep the cover pliable and
glossy.
8. Automotive wax may be applied to all
painted or chromed surfaces. Avoid
combination cleaner-waxes, as they may
contain abrasives.
9. After completing the above, start the
engine and allow it to idle for several
minutes.