Yamaha YZF-R125 Service Manual: Installing the engine
1. Install:
- Engine "1"
- Engine mounting bolt (rear lower side) "2"
- Engine mounting nut (rear lower side) "3"
- Engine mounting bolt (rear upper side) "4"
- Engine mounting nut (rear upper side) "5"
- Engine mounting bolt (front side) "6"
- Engine mounting nut (front side) "7"
NOTE:
Do not fully tighten the bolts and nuts.
2. Tighten:
- Engine mounting nut (rear upper side)
- Engine mounting nut (rear lower side)
- Engine mounting nut (front side)
Engine removal
...
Installing the shift arm
1. Install:
Shift arm "1"
NOTE:
Make sure that the distance "a" between the
center of the left rider footrest "2" and the center
of the shift pedal "3" is within specification.
...
Other materials:
Checking the cylinder head
1. Eliminate:
Combustion chamber carbon deposits
(with a rounded scraper)
NOTE:
Do not use a sharp instrument to avoid damaging
or scratching:
Spark plug bore threads
Valve seats
2. Check:
Cylinder head
Damage/scratches Replace.
Cylinder head water jacket
Min ...
Checking the diode
1. Check:
Diode
Out of specification Replace.
NOTE:
The pocket tester or the analog pocket tester
readings are shown in the following table.
a. Disconnect the diode from the wire harness.
b. Connect the pocket tester ( × 1)
to the diode
terminals as shown.
c. Check the diod ...
Checking the crankshaft position sensor
1. Disconnect:
Crankshaft position sensor coupler
(from the wire harness)
2. Check:
Crankshaft position sensor resistance
Out of specification Replace
the crankshaft
position sensor/stator assembly.
a. Connect the pocket tester ( × 100) to the
crankshaft position sensor c ...