The following procedure applies to all of the valves and related components.
1. Deburr:
2. Lubricate:
3. Install:
NOTE:
b. Smaller pitch
4. Install:
NOTE:
Install the valve cotters by compressing the valve spring with the valve spring compressor and the valve spring compressor attachment "2".
5. To secure the valve cotters onto the valve stem, lightly tap the valve tip with a soft-face hammer.
CAUTION: Hitting the valve tip with excessive force could damage the valve. |
Checking the rectifier/regulator
1. Check:
Rectifier/regulator output voltage
Out of specification → Replace the
rectifier/
regulator.
a. Set the engine tachometer to the spark plug
lead.
b. Connect the pocket tester (DC 20 V) to the
rectifier/regulator coupler as shown.
Positive tester probe
red "1"
Negat ...
Introduction
Welcome to the Yamaha world of motorcycling!
As the owner of the YZF-R125, you are benefiting from Yamaha's vast
experience and newest technology regarding the design
and manufacture of high-quality products, which have earned Yamaha a reputation
for dependability.
Please take the time to re ...
Assembling the water pump
1. Install:
Water pump seal "1"
(into the water pump housing "2")
CAUTION:Never lubricate the water pump seal
surface
with oil or grease.
NOTE:
Install the water pump seal with the special
tools.
Install the water pump seal with the special
tools to the specifi ...