Section 5 - Maintenance
Page 66
90-865253070 JUNE 2007
NOTICE
Operating the engine out of the water at high speeds creates suction, which can collapse
the water supply hose and overheat the engine. Do not operate the engine above 1400
RPM out of the water and without sufficient cooling water supply.
6. Depress the throttle only button and slowly advance the throttle until the engine reaches
1300 RPM (± 100 RPM).
7. Observe the water temperature gauge to ensure that the engine is operating in the
normal range.
8. Operate the engine with the transmission in neutral for a minimum of 10 minutes.
9.
For power packages operated in salty, brackish, mineral‑laden or polluted water:
Continue to operate the engine until the discharge water is clear.
10. Slowly return the throttle to idle speed position.
NOTICE
Flushing the engine when it is not operating will result in water collecting in the exhaust
system, damaging the engine. Do not supply flush water for more than 15 seconds
without the engine operating.
11. Stop the engine.
12. Immediately shut off the supply water and remove the flushing attachment.
13. Install the water inlet hose to the seawater inlet of the seawater pump or V‑Drive water
inlet.
14. Tighten hose clamp securely.
15. Attach to the next engine, if equipped, and repeat procedure.
The Boat In the Water
IMPORTANT: Flushing the power package is most effective when performed with the boat
out of the water.
IMPORTANT: Flushing is needed If the engine package has been operated in salty,
brackish, mineral‑laden or polluted water. For best results flushing is recommended after
each outing and before cold weather and extended storage.
NOTICE
Disconnecting the seawater inlet hose will cause water to enter the bilge resulting in
engine damage. Close the seacock before disconnecting the seawater inlet hose. Plug
the seawater inlet hose immediately after disconnecting it.
1.
Models with Walter V-Drive Transmissions:
a.
Close the seacock, if equipped, and then disconnect the seawater inlet hose from
the transmission seawater inlet fitting.
NOTICE
Disconnecting the seawater inlet hose will cause water to enter the bilge resulting in
engine damage. Close the seacock before disconnecting the seawater inlet hose. Plug
the seawater inlet hose immediately after disconnecting it.
Summary of Contents for Black Scorpion
Page 8: ...Page iv 90 865253070 JUNE 2007 ...
Page 36: ...Section 2 Getting to Know Your Power Package Notes Page 28 90 865253070 JUNE 2007 ...
Page 54: ...Section 4 Specifications Notes Page 46 90 865253070 JUNE 2007 ...
Page 78: ...Section 5 Maintenance Notes Page 70 90 865253070 JUNE 2007 ...
Page 98: ...Section 6 Storage Notes Page 90 90 865253070 JUNE 2007 ...
