6. ENGINE REMOVAL
6-0
Mongoose/KXR 90/50
6
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ENGINE REMOVAL
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SERVICE INFORMATION -------------------------------------------- 6- 1
ENGINE REMOVAL (Mongoose/KXR 90)--------------------------- 6- 2
ENGINE REMOVAL (Mongoose/KXR 50)--------------------------- 6- 4
6
6. ENGINE REMOVAL/INSTALLATION
6-1
Mongoose/KXR 90/50
SERVICE INFORMATION
GENERAL INSTRUCTIONS
• A floor jack or other adjustable support is required to support and maneuver the engine.
Be careful not to damage the machine body, cables and wires during engine removal.
• Use shop towels to protect the machine body during engine removal.
• Parts requiring engine removal for servicing:
æ Crankcase
æ Crankshaft
6. ENGINE REMOVAL
6-2
Mongoose/KXR 90/50
ENGINE REMOVAL
(Mongoose/KXR 90)
Drain engine oil and transmission oil. (Refer
to chapter 3)
Remove frame covers and exhaust pipe.
(Refer chapter 2)
Remove air cleaner and carburetor. (Refer to
chapter 5)
Remove the two bolts on the drive sprocket.
Remove the drive sprocket and washer.
Remove the spark plug cap.
Disconnect the A.C. generator and starter
motor couplers.
Remove the front two mounting bolts and
two nuts at the engine right/left side.
Remove the four bolts and then remove the
left and right engine brackets at the engine
right/left side.
Remove the rear two mounting bolts and
two nuts.
Disconnect the inlet hose from the frame.
Bolts
A.C. Generator/Starter Motor Couplers
Bolt and Nut
Bolts
Inlet Hose
Drive Sprocket
Spark Plug Cap
Bolt and Nut
Bolts
Bolts and Nuts
6. ENGINE REMOVAL/INSTALLATION
6-3
Mongoose/KXR 90/50
Remove the engine assembly to the left side
of the machine.
INSTALLATION
Reverse the “REMOVAL” procedures.
TORQUE VALUES
Front engine bracket bolt 4.0_ 5.0kgf-m
Rear engine bracket bolt 2.0_ 2.4kgf-m
6. ENGINE REMOVAL
6-4
Mongoose/KXR 90/50
ENGINE REMOVAL
(Mongoose/KXR 50)
Remove frame covers and exhaust pipe.
(Refer to chapter 2)
Remove oil tank. (Refer to chapter 4)
Remove air cleaner and carburetor. (Refer to
chapter 5)
Drain transmission oil. (Refer to chapter 3)
Disconnect the A.C. generator and starter
motor couplers.
Remove the spark plug cap.
Remove the two bolts on the drive sprocket.
Remove the drive sprocket and washer.
Remove the front two mounting bolts and
two nuts at the engine right/left side.
Remove the four bolts and then remove the
left and right engine brackets at the engine
right/left side.
Remove the rear two mounting bolts and
two nuts.
A.C. Generator/Starter
Motor Couplers
Spark Plug Cap
Bolts
Drive Sprocket
Bolts and Nuts
Bolt and Nut
Bolts
Bolt and Nut
Bolts
6. ENGINE REMOVAL/INSTALLATION
6-5
Mongoose/KXR 90/50
Remove the engine assembly to the left side
of the machine.
INSTALLATION
Reverse the “REMOVAL” procedures.
TORQUE VALUES
Front engine bracket bolt 4.0_ 5.0kgf-m
Rear engine bracket bolt 2.0_ 2.4kgf-m
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