Yamaha YZF-R125 Service Manual: Features

Identification
Vehicle identification number The vehicle identification number "1" is stamped into the right side of the steering head pipe. Model label The model label "1" is affixed to the frame. This inf ...

Outline of the fi system
The main function of a fuel supply system is to provide fuel to the combustion chamber at the optimum air-fuel ratio in accordance with the engine operating conditions and the atmospheric tempera ...

Other materials:

Incorrect engine idling speed
Engine 1. Cylinder and cylinder head Incorrect valve clearance Damaged valve train components 2. Air filter Clogged air filter element Fuel system 1. Throttle body Damaged or loose throttle body joint Improperly adjusted engine idling speed (idle adjusting screw) Improper ...

Checking the timing chain tensioner
1. Check: Timing chain tensioner Cracks/damage/rough movement Replace. a. Lightly press the timing chain tensioner rod into the timing chain tensioner housing by hand. NOTE: While pressing the timing chain tensioner rod, wind it clockwise with a thin screwdriver "1" until it stops. b. ...

Checking the shift forks
The following procedure applies to all of the shift forks. 1. Check: Shift fork cam follower "1" Shift fork pawl "2" Bends/damage/scoring/wear Replace the shift fork. 2. Check: Shift fork guide bar Roll the shift fork guide bar on a flat surface. Bends  Replace. ...

2020 Copyright www.yam-r125.net |