Tanaka TOB-120 Outboard Motor User Manual


 
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Owner’s Manual
TOB-120,TOB-300
Tilt Adjustment
Motor tilt must be adjusted to propel boat through the
water with an even keel. If the motor is tilted too far
outward, bow of the boat would ride too high in the water
obscuring the operator's view and be susceptible to
sudden movement by high winds and waves. If the motor
is tilted too far inward, the bow may dig into high waves
or wakes.
A 12 to 15 degree tilt is recommended. This angle may
need to be adjusted according to the weight of boat and
passengers.
Improper transom height or tilt angle may result in boat
"porpoising" or motor cavitation.
Boat porpoising is a condition where the bow of the boat
raises and falls rapidly and continuously.
Motor cavitation is a condition where turbulent air passes by the propeller resulting in an increase in motor
speed coupled with a rapid drop in boat speed. These conditions can also be caused by fast turns, rough
water, wrong or obstructed propeller, or poor boat design.
To adjust, stop motor and allow propeller to come to a full stop. Tilt motor all the way up to the storage
position, then remove Tilt Lock Bracket Pin. Re-position lock pin in one of five angle adjustment holes in clamp
bracket. Secure Tilt Lock Pin with Hair Pin.
To determine the best motor tilt angle, start with the Tilt Lock Adjustment Pin in the center set of holes. In
calm water, operate boat at full throttle with a normal load. Adjust tilt angle as necessary to establish a near
even keel.
Steering Adjustment
The amount of resistance to movement of the steering
handle is adjustable. Loosen or tighten the steering
tension bolt using an open end spanner wrench
(supplied).
IMPORTANT: The tension bolt may fall out if loosened too
much.