Operation Manual

BX25, RCK54(P)-23BX, RCK60B-23BX, LA240. BT601. WSM
ENGINE
(5) Piston and Connecting Rod
___ -,1)
3TAAAAD1 P043A
Fuel Camshaft
1. Remove the retaining plate (1).
2. Remove the fork lever holder mounting screws (8), then draw out
the injection pump gear (3) and fuel camshaft (2) with the
governor fork assembly.
(When reassembling)
• Hook the governor spring (7) to the fork lever 2 (6)
as shown in
the figure before installing the fork lever assembly to the
crankcase.
(1) Retaining Plate (5) Fork Lever 1
(2) Fuel Camshaft
(6) Fork Lever 2
(3) Injection Pump Gear
(7) Governor
Spring
(4) Governor Sleeve
(8) Fork Lever Holder Mounting Screw
W10178820
Oil Pump and Crankshaft Gear
1. Remove the oil pump gear (6).
2. Remove the oil pump (5).
3. Remove the collar (4). O-ring (3) and crankshaft oil slinger (2).
4. Remove the crankshaft gear (1) with a puller.
(When reassembling)
• Install the collar (4) after aligning the marks on the gears. (See
page 1-S34 "Idle Gear".)
(1) Crankshaft Gear (4) Crankshaft Collar
(2) Crankshaft Oil Slinger (5) Oil Pump
(3) O-ring
(6) Oil Pump Gear
W10180290
Connecting Rod Cap
1. Remove the connecting rod caps (1) using a bihexagonal 8 mm
socket.
(When reassembling)
• Align the marks (a) with each other. (Face the marks toward the
injection pump.)
• Apply engine oil to the connecting rod screws and lightly screw it
in by hand. then tighten it to the specified torque.
If the connecting
rod screw won't be screwed in smoothly. clean
the threads.
If the connecting rod screw
is still hard to screw in. replace it.
26.5 to 30.4 N'm
TIghtening torque
Connecting rod screw 2.7 to
3.1 kgf'm
19.5 to 22.4 ft-Ibs
(1) Connecting Rod Cap
(a) Mark
W10275480
1-S35