Yanmar 4JH4E - Adjusting the No-Load Maximum or Minimum Speed

2. Inspection and adjustment
94
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
(Unit: min
-1 )
Model No-load maximum No-load minimum
3JH4E
4JH4E
3325±25 825±25
4JH4-TE
4JH4-HTE
3775
+25
-75
800±25
010615-00E
Remote control cable
Fuel
injection
pump
Low speed limiting bolt
High speed limiting bolt
Control lever
Cable joint