1. Remove:
2. Lift the fuel tank. (Do not disconnect the fuel hose, drain hose
3. Check:
Fuel hose "1" Cracks/damage → Replace.
Loose connection Connect properly.

4. Install:
Checking the throttle body joint and air filter case joint
Checking the cylinder head breather hoseSeparating the crankcase
1. Remove:
Crankcase bolts
NOTE:
Loosen each bolt 1/4 of a turn at a time, in stages
and in the proper sequence as shown.
A. Right crankcase
B. Left crankcase
2. Turn:
Shift drum segment
NOTE:
Turn the shift drum segment "1" to the position
shown in the illustration. In this ...
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 ...
Adjusting the throttle cable free play
NOTE:
Prior to adjusting the throttle cable free play, the
engine idling speed should be adjusted.
1. Check:
Throttle cable free play "a"
Out of specification →Adjust.
2. Remove:
Right side panel
Refer to "GENERAL CHASSIS" on page 4-1.
3. Adjust:
Throttle cable f ...