Engine Break-In - Yamaha ZUMA CW50N Owner's Manual

WARNING
1. Avoid hard or sudden braking. It
may cause the scooter to skid or
overturn.
2. Be sure to apply the brake
carefully if leaning over to one
side. Improper braking could lead
to a skid.
3. Street car rails, metal plates on
road construction sites, and man-
hole covers become particularly
slippery when they get wet. Cross
them slowly and cautiously.
4. Braking on a wet road will be very
difficult.
5. Braking on a hill can be difficult.
Proceed slowly when riding
downhill.
OPERATION AND IMPORTANT RIDING POINTS
EUU73802

Engine break-in

There is never a more important period
in the life of your scooter than the period
between zero and 1,000 km (600 mi).
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 1,000 km (600 mi). 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 which might result in exces-
sive heating of the engine, must be
avoided.
EAF32000
1. 0 ~ 150 km (0 ~ 90 mi):
Avoid operation above 1/3 throttle.
Stop the engine and let it cool for 5
to 10 minutes after every hour of
operation. Vary the speed of the
scooter from time to time. Do not
operate it at one set throttle position.
EAF30000
2. 150 ~ 500 km (90 ~ 300 mi):
CAUTION:
After 1,000 km (600 mi) of operation,
be sure to replace the transmission
oil.
3. 500 ~ 1,000 km (300 ~ 600 mi):
4. 1,000 km (600 mi) and beyond:
CAUTION:
If any engine trouble should occur
during the break-in period, consult
a Yamaha dealer immediately.
6-4
Avoid prolonged operation above
1/2 throttle.
Avoid cruising speeds in excess of
3/4 throttle.
Avoid prolonged full throttle
operation. Vary speeds occasionally.
EUU35300
6
EUU32200