Checking The Crankcase; Checking The Bearing And Oil Seal; Checking The Oil Strainers; Installing The Crankshaft - Yamaha MBK XMAX 2014 Service Manual

EAS25580

CHECKING THE CRANKCASE

1. Thoroughly wash the crankcase halves in a
mild solvent.
2. Thoroughly clean all the gasket surfaces and
crankcase mating surfaces.
3. Check:
• Crankcase
Cracks/damage → Replace.
• Oil delivery passages
Obstruction → Blow out with compressed air.
EAS2DL1009

CHECKING THE BEARING AND OIL SEAL

1. Check:
• Bearing
Clean and lubricate the bearings, and then
rotate the inner race with your finger.
Rough movement → Replace.
EAS2DL1010

CHECKING THE OIL STRAINERS

1. Check:
• Oil strainers
Damage → Replace.
Contaminants → Clean with solvent.
EAS26210

INSTALLING THE CRANKSHAFT

1. Lubricate:
• Oil seals
• Bearings
• Oil pump drive gear
Recommended lubricant
Oil seal
Lithium-soap-based grease
Bearing, oil pump drive gear
Engine oil
2. Install:
• Oil seal "1"
(to the left crankcase)
Oil seal installed depth
0–0.5 mm (0–0.020 in)
a. Oil seal installed depth
3. Install:
• Timing chain "1"
TIP
Install the timing chain so it is not visible through
the opening "a" in the left crankcase "2".
4. Install:
• Crankshaft assembly "1"
(to the left crankcase)
TIP
Install the crankshaft assembly with the crank-
shaft installer pot "2", crankshaft installer bolt "3",
adapter "4", and spacer "5".
Crankshaft installer pot
90890-01274
Installing pot
YU-90058
Crankshaft installer bolt
90890-01275
Bolt
YU-90060
Adapter (M14)
90890-01478
Adapter #6
YM-90066
Spacer (crankshaft installer)
90890-04081
Pot spacer
YM-91044
5-60
CRANKSHAFT
1
a