Yamaha F40BWHD - Checking the Timing Belt; Cooling System; Checking the Cooling Water Discharge

POWER UNIT/COOLING SYSTEM
3-17
E
CHK
ADJ
Measuring steps
(1) Remove the lock plate from the engine
stop lanyard switch on the remote con-
trol box/tiller handle.
(2) With the throttle wide open, crank the
engine setting the main switch in the
START position until the reading on the
compression gauge stabilizes.
6. Remove:
• Compression gauge
7. Install:
• Spark plug(-s)
CHECKING THE TIMING BELT
Check:
• Timing belt
Wear/damage → Replace.
COOLING SYSTEM
CHECKING THE COOLING WATER
DISCHARGE
Check:
•Pilot water
Does not flow → Clean and check
the cooling water passage.
Checking steps
(1) Place the lower unit in water.
(2) Start the engine.
(3) Check that water flows from the pilot
water outlet.