Yamaha YZF-R125 Service Manual: Installing the shift shaft
1. Install:
- Stopper lever "1"
- Stopper lever spring "2"
NOTE:
- Install the stopper lever spring as shown in the illustration.
- Hook the ends of the stopper lever spring onto the stopper lever and the crankcase boss "3".
- Mesh the stopper lever with the shift drum segment assembly.
2. Install:
- Shift shaft "1"
NOTE:
Hook the end of the shift shaft spring onto the shift shaft spring stopper "2".
Checking the shift shaft
1. Check:
Shift shaft
Bends/damage/wear Replace.
Shift shaft spring
Damage/wear Replace.
Checking the stopper lever
1. Check:
Stopper lever
Bends/damage Replace.
Roller ...
Balancer gear
...
Other materials:
Adjusting the engine idling speed
NOTE:
Prior to adjusting the engine idling speed, the air
filter element should be clean, and the engine
should have adequate compression.
1. Start the engine and let it warm up for several
minutes.
2. Remove:
Rider seat
Refer to "GENERAL CHASSIS" on page 4-1.
3. Lift the fuel tank. ...
Checking the primary driven gear
1. Check:
Primary driven gear "1"
Damage/wear Replace the
primary drive
gear and clutch housing as a set.
Excessive noise during operation
Replace
the primary drive gear and clutch housing as
a set.
...
Lubrication diagrams
Clutch push lever
Main axle
Drive axle
Crankshaft
Oil filter
Oil pump assembly
Oil strainer
To cylinder head
Camshaft
Crankshaft
Main axle
Drive axle
...