Rear Brake And Wheel; Drive Chain - Yamaha LB50IIAC Service Manual

Rear brake and wheel
1. Rear brake adjustment
The rear brake can be adjusted in two
ways:
(1)
using the adjust screws at the
rear brake lever or
(2)
at the rear brake
shoe plate. Loosen the locknut and turn
the adjust screw to adjust the brake lever.
The clearance between the brake lever
and the brake lever holder should be 5 - 8
mm as shown in the illustration. After
adjusting, be sure the locknut is tightened
firmly.
N O T E : - - - - - - - - - - - -
Rear brake adjustment must be checked
whenever chain is adjusted or rear
wheel is removed and then re-installed.
2. Rear axle
Check axle nut.
Rear axle nut torque:
60 Nm (6.0 m • kg)
3. Rear tire pressure (cold tire)
Model LB50Il AC
Basic
weight: With
SO kg
oil and full
fuel tank
Maximum
140 kg
load*:
LBSO Il AC
76 kg
144 kg
Upto 70 kg 125 kPa
load*
(1.25 kg/cm
2 ,
1.25 bar)
70kg- maxi-
200 kPa
150 kPa
(2.0 kg/cm
2
,
(1.5 kg/cm
2
,
mum load*
2.0 bar)
1.5 bar)
*
Load is the total weight of the cargo,
rider, passenger and accessories.
Drive chain
1. Drive chain adjustment
To adjust drive chain. proceed as
follows:
a. Remove rear axle cotter pin.
b. Loosen rear axle securing nut (3).
c. With rider in position on machine with
both wheels on ground, set axle adjust-
ers until there is 20 - 30 mm free play in
the drive chain at the bottom of the
chain at a point midway between the
drive and driven axles.
a. 5 ,.._, B mm
1. Locknut
2. Adjuster
a.
20- 30
mm
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