Yanmar 3JH4E Service Manual page 37

(6) Check and adjust the remote control operation
The various control levers on the engine side are connected to the remote control lever by the remote
control cable. The cable will become stretched and the attachments loose after long hours of use
causing deviation. It is dangerous to control operation under these conditions, and the remote control
cable must be checked and adjusted periodically.
1) Adjusting the Throttle Remote Control Cable
Check to see that the control lever on the engine
side moves to the high speed stop position and low
speed stop position when the remote control lever
is moved to H (high speed) and L (low speed)
respectively.
When there is deviation, loosen the bracket for the
remote control cable on the engine side and
adjust.
Adjust the high speed stop position first and then
adjust the low speed idling by the adjustment bolt
on the remote control lever.
2) Adjusting the Clutch Remote Control Cable
Check that the shift lever moves to the correct
position, when the remote control handle is put in
NEUTRAL, FORWARD and REVERSE position.
Use the NEUTRAL position as the standard for
adjustment. When there is deviation, loosen the
clamp for the remote control cable and adjust the
shift lever position
(7) Adjust the propeller shaft alignment
The flexible engine mounts is compressed a little in the initial engine operation and it may cause the
centering misalignment between the engine & the propeller shaft.
1) Check unusual noise and vibration of the engine / boat hull, while increasing the engine speed
gradually and lowering it.
2) If there is unusual noise and/or vibration, adjust the propeller shaft alignment. (Refer to 6.4.5
"Centering the Engine" in the installation manual for pleasure boat use.)
Never adjust the high speed limiting bolt. This will void warranty.
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2. Inspection and Adjustment
Remote
control cable
High speed
limiting bolt
Control lever
Cable joint
Remote control cable
Marine
gear
Fuel injection pump
Low speed limiting bolt
Clamp
Shift lever