Yamato 302 - Motor Operation; Pre-Operation Precautions; Starting the Motor

II OPERATION OF MOTOR
II - 1 Precaution Prior to Starting Motor
A. Check thumb screw handles to be sure it is tight.
B. Check for oiI in gearcase.
C. Check condition of high tension wires and spark plugs. Ensure it is firmly tightened.
D. Check fuel in tank to be sure sufficient quantity remains for the anticipated run.
E. Check for proper engine height and angle.
F. Check steering system for proper installation and tightness.
G. Check throttle system for tightness. Be sure it is free from binding and free to
return to closed position.
H. When the motor is coId, it is suggested that the motor be warmed up prior to
launching. For safety sake, we suggest that the propeller be removed.
Caution: Remove spark plug wires whenever propeller is removed or installed.
II - 2 How to Start Motor
A. Set fuel cock in vertical position, air vent (located on fuel cap) opened, main needle
opened 1-1/2 turn, and spark plug wire attached to the appropriate plug.
B. Check float pin. Approximately 8mm (
5
/
16
") should be protruding above carburettor
float cover.
C. Set timing handle about midway of travel.
D. Pull choke lever (for cold motor only). See figure1.
E. On pre-heated motors, do not use choke. Instead, open throttle approximately 1/8
to 1/4. However for cold motor DO NOT OPEN THROTTLE.
F. Wrap starter rope 1-1/2 to 2 turns on starter pulley.
G. Pull starter rope vigorously, repeat if necessary.
H. As soon as motor starts, push choke in. See figure 2.
I. If motor starts but stops immediately, it may or may not be necessary to reset
choke.
J. Repeat step G and H.
K. After motor starts, shift timing handle all the way to the right (exhaust side).
L. Increase motor RPM.
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