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WATER LEVEL GUIDELINE (4-STROKE ENGINES)
If you replaced 2-stroke engine to 4-stroke engine which has the same horse power, a boat tends to
become “stern heavy” because of heavier engine weight.
As a result, water line will rise and get close to the power head.
This effects a poor engine performance, and water could easily enter into the cylinder(s) and dam-
age the engine.
Therefore, you should consider the water level guideline to install 4-stroke outboard motor.
Under mooring of boat with a maximum boat load, maintain the minimum height (H) shown in the
illustration between the water surface and the clamp bracket seating point.
Minimum height between water surface and bracket seating point
Model
Min. height (H)
Carbureted F2 – F60
150 mm
5.9 in
Fuel injected F40 (4-cyl) – F60
100 mm
3.9 in
F75 and above
100 mm
3.9 in
Water surface
(H)
Содержание 2CMH
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Страница 226: ...YAMAHA MOTOR CO LTD Produced in Japan June 2008 0 22 1NP E G20080529021348 ...