E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TROUBLE

POSSIBLE CAUSE

REMEDY

PAGE

 

 

 

 

 

Engine runs irregu-

Fuel

Empty

Refill as soon as possi-

3-4

larly or stalls

 

 

ble

 

 

 

 

 

 

 

Stale or contaminated

Have serviced by

4-10

 

 

 

 

 

Yamaha dealer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fuel tank

Water or dirt present

Have serviced by

4-10

 

 

 

 

 

Yamaha dealer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Spark plug

Fouled or defective

Replace

4-15

 

 

 

 

 

 

 

 

 

 

 

Incorrect heat range

Replace

4-15

 

 

 

 

 

 

 

 

 

 

 

Gap incorrect

Adjust

4-15

 

 

 

 

 

 

 

 

 

 

Spark plug cap

Loose

Connect properly

4-15

 

 

 

 

 

 

 

 

 

 

 

Cracked, torn, or dam-

Replace

 

 

 

 

aged

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Electrical wir-

Loose connection

Tighten or connect

 

 

 

ing

 

properly

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fuel injection

Jet nozzle clogged

Have serviced by

 

 

 

system

 

Yamaha dealer

 

 

 

 

 

 

 

 

 

 

Warning light or

Fuel level

Empty

Refill as soon as possi-

3-4

indicator blinks

 

 

ble

 

 

 

 

 

 

Engine over-

Jet intake clogged

Clean

5-3

 

 

 

heated

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check engine

Faulty sensors

Have serviced by

 

 

 

warning

 

Yamaha dealer

 

 

 

 

 

 

 

 

 

 

Watercraft slow or

Cavitation

Jet intake clogged

Clean

5-3

loses power

 

Impeller damaged or

Have serviced by

 

 

 

 

worn

Yamaha dealer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engine over-

Engine speed reduc-

Clean jet intake and

2-19

 

 

 

heat warning

tion control activated

cool engine

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Oil pressure

Engine speed reduc-

Add oil

2-18

 

 

 

warning

tion control activated

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Spark plug

Fouled or defective

Replace

4-15

 

 

 

 

 

 

 

 

 

 

 

Incorrect heat range

Replace

4-15

 

 

 

 

 

 

 

 

 

 

 

Gap incorrect

Adjust

4-15

 

 

 

 

 

 

 

 

 

 

Spark plug

Loose

Connect properly

4-15

 

 

 

caps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Electrical wir-

Loose connection

Tighten or connect

 

 

 

ing

 

properly

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fuel

Stale or contaminated

Have serviced by

4-10

 

 

 

 

 

Yamaha dealer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Air filter

Clogged

Clean or replace

4-13

 

 

 

 

 

 

 

 

 

 

 

Oil buildup

Replace

4-13

 

 

 

 

 

 

 

5-2