Yamaha MAJESTY 400 User Manual

PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU42700
Troubleshooting charts
Starting problems or poor engine
performance
WARNING
EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
Check the fuel level in
the fuel tank.
1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.
2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.
3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.
4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.
Check the battery lead connections,
and charge the battery if necessary.
Dry
Wet
Operate the electric starter.

Yamaha MAJESTY 400 Specifications

General

Displacement	395 cc
Bore x Stroke	83.0 mm x 73.0 mm
Compression Ratio	10.6:1
Fuel System	Fuel Injection
Ignition	TCI
Starter System	Electric
Transmission	V-belt automatic
Front Suspension	Telescopic fork
Rear Suspension	Unit Swing
Front Tire	120/80-14
Rear Tire	150/70-13
Length	2, 230 mm
Seat Height	760 mm
Wheelbase	1, 565 mm
Fuel Capacity	14 liters
Maximum Torque	36.0 Nm (3.7 kg-m) @ 6, 000 rpm
Rear Brake	Single disc