Overcooling; Poor Performance Brake; Failure Of The Front Fork; Unstable Handling - Yamaha FZ-16 Service Manual

Fuel System
• Improper carburetor adjustment
•
Setting the wrong fuel level
•
Blocked air filter element
Compression System
• Many carbon deposition
•
Improperly adjusted valve timing
•
Bad valve clearance adjusted
Engine Oil
• Improper oil level
•
Oil quality incorrect
•
Low oil
Fuel System
1. Throttle body
•
Damaged or loose throttle union
2. Air filter
•
The air filter element is clogged
Chassis
1. Brake (s)
•
Drag Brake
Electrical System
1. Plug
•
Electrode gap of spark plug incorrect
•
Heat range spark plug incorrect
2. Ignition system
•
Defective CDI

Overcooling

Refrigeration system
1. Thermostat
•
The thermostat is open

POOR PERFORMANCE BRAKE

1. Disc brake
•
Worn brake pads
•
Brake disc wear
•
Air in hydraulic brake system
•
Loss of brake fluid
•
Failure in the whole caliper
•
Seal failure of the brake caliper
•
Coupling screws loose
•
Damage the brake hose
TROUBLESHOOTING
•
Grease or oil on brake disc
•
Grease or oil on brake pads
•
Brake fluid level incorrect

FAILURE OF THE FRONT FORK

Oil leak
•
Tube bent, damaged or corroded
•
Broken or damaged outer tube
•
Improperly installed oil seal
•
Edges of the damaged oil seal
•
Incorrect oil level (high)
•
Screw loose cushion rod
•
Copper washer damper rod
damaged
•
O-ring screw cap damaged
Malfunction
•
Bent or damaged inner tube
•
Bent or damaged outer tube
•
Damaged fork spring
•
Damper rod bent or damaged
•
Incorrect oil viscosity
•
Improper oil level

UNSTABLE HANDLING

1. Handlebar
•
Folded or incorrectly installed the handlebars
2. Components of the steering column
•
Poorly installed upper bracket
•
Improperly installed lower bracket
(Improperly tightened ring nut)
•
Stem bending direction
•
Ball bearings or damaged tracks
3. Bar (s) of the front fork
•
Uneven oil levels (both bars
Front fork)
•
Uneven spring tension (both
Front fork bars)
•
Broken fork spring
•
Bent or damaged inner tube
•
Outer tube bent or dañad
4. Tilt
•
Bearing wear
•
Swingarm bent or damaged
8.3