Installing The Crankshaft Journal Bearings; Installing The Connecting Rods - Yamaha 2012 TMAX XP500A Service Manual

Bearing color code
1.Blue
4.Green
Bearing thickness
Blue:
(0.0982–0.0987 in)
Black:
(0.0981–0.0986 in)
Brown:
(0.0979–0.0984 in)
Green:
(0.0978–0.0983 in)
EAS25630
INSTALLING THE CRANKSHAFT JOUR-
NAL BEARINGS
The following procedure applies to both of the
crankshaft journal bearings.
1. Attach:
• Crankshaft journal bearing "1"
TIP
Attach the crankshaft journal bearing to the
plane bearing installer "2".
Plane bearing installer
90890-04139
2. Install:
• Crankshaft journal bearing
TIP
• Align the projection "a" on the bearing with
the projection "b" on the crankcase.
• Place an iron plate "3" beneath the crank-
case and press fit until the end of the plain
bearing installer touches the iron plate.
2.Black 3.Brown
2.495–2.508 mm
2.491–2.504 mm
2.487–2.500 mm
2.483–2.496 mm
EAS26150

INSTALLING THE CONNECTING RODS

1. Lubricate:
• Bolt threads
• Nut seats
(with the recommended lubricant)
Recommended lubricant
Molybdenum disulfide oil
2. Lubricate:
• Crankshaft pins
• Big end bearings inner surface
• Balancer big end bearings inner surface
(with the recommended lubricant)
Recommended lubricant
Engine oil
3. Install:
• Big end bearings
• Connecting rods
• Connecting rod caps
(onto the crankshaft pins)
TIP
• Align the projections "a" on the big end bear-
ings with the notches "b" in the connecting
rods and connecting rod caps.
• Be sure to reinstall each big end bearing in
its original place.
• Make sure the "Y" marks "c" on the connect-
ing rods face towards the left side of the
crankshaft.
5-80
CRANKSHAFT
New
New