Adjusting The No-Load Maximum Or Minimum Speed - Yanmar 3JH4E Service Manual

2. Inspection and adjustment
2.3 Adjusting the no-load
maximum or minimum speed
1) After warming the engine up, gradually raise
the speed and set it at the no-load maximum
speed.
2) If the no-load maximum speed is out of the
standard, adjust it by turning the high idle
limiting bolt.
3) Then set the no-load minimum speed by
adjusting the low idle limiting bolt.
Standards
Model No-load maximum
3JH4E
3325±25
4JH4E
4JH4-TE
3775
4JH4-HTE
(Unit: min
No-load minimum
825±25
+25
800±25
-75
Remote control cable
-1 )
Control lever
Cable joint
94
High speed limiting bolt
Low speed limiting bolt
Fuel
injection
pump
010615-00E