Bad Boy 550cc - Checking Intake Air Tube; Every 300 Hours; Checking Tires; Every 400 Hours

Periodic Service
10-18
2. Don’t stop the engine suddenly, but stop it
after about
5 minutes of idling.
3. Do not open radiator cap until engine has
sufficiently cooled down.
4. Inspect radiator for debris in screen,
clogged radiator fins, coolant level in
radiator, and proper coolant fan operation.
Correct any of these findings
and restart engine. Allow it to get to
normal operation temperature to ensure
issue has been corrected.
■ Checking Intake Air Tube
1. Check to see if the hoses and hose
clamps are tight and not damaged.
2. If hoses and clamps are found to be worn
or damaged, replace or repair them at
once.
① Hose ② Hose joint
EVERY 300 HOURS
■ Checking Tire
1. Check to see if tires are damaged.
2. If the tires are cracked, bulged, cut, or
they are worn out, replace or repair them
at once.
◆ Tire Tread Depth
Always replace the tires when the tread
depth is worn to minimum allowable.
① 3mm(0.12in)
EVERY 400 HOURS
■ Changing Transmission Fluid
CAUTION
To avoid personal injury:
 Park the vehicle on a flat surface, raise
the cargo bed, mount the safety
support.
 Allow engine to cool down sufficiently,
oil can be hot and can
burn.
1. Park the vehicle on a flat surface, raise
the cargo bed, mount the safety support.
2. To drain the used oil, remove the drain
plug at the bottom of the transmission
case and drain the oil completely into the
oil pan.
3. After draining, reinstall the drain plug.
4. After running the engine for a few minutes,
stop the engine and check the oil leve
l
again; add oil to prescribed level.