Yanmar 1GM, Operation Manual

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1, Astern
2. Neutral
3. Ahead
4. Control Handle
[6-7.] Tuning
To allow the lube oil to reach all parts, turn in the
following sequence.
1) Place the control lever in "NEUTRAL".
2) Raise the decompression lever and leave it in the "no
compression" position.
3) Open the kingston cock.
4) Turn on the battery switch, insert the key into the
switch, and turn it to "ON".
FOR 1GM
5) Push the starter button and simultaneously pull the
"STOP" wire; turn the engine over 5-10 times and
make sure there are no abnormal sounds.
FOR 2GM/3GMD/3HM
Important
When turning by hand, turn to the left (counter clockwise) when viewed
from the front. If turned in the wrong direction, the impeller of the
cooling water pump may be damaged.