E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TROUBLE

POSSIBLE CAUSE

REMEDY

PAGE

 

 

 

 

 

Engine runs irregu-

Fuel

Empty

Refill as soon as possi-

3-3

larly or stalls

 

 

ble

 

 

 

 

 

 

 

Stale or contaminated

Have serviced by

4-10

 

 

 

 

 

Yamaha dealer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Choke

Knob pulled

Push fully in

2-10

 

 

 

 

 

 

 

 

 

 

Fuel filter

Clogged or water

Have serviced by

4-11

 

 

 

 

pooled

Yamaha dealer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fuel tank

Water or dirt present

Have serviced by

4-11

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Carburetor

Incorrect idle adjust-

Adjust idle

4-22

 

 

 

 

ment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Clogged

Have serviced by

 

 

 

 

 

Yamaha dealer

 

 

 

 

 

 

 

 

 

 

 

Warning light or

Fuel level

Empty

Refill as soon as possi-

3-3

indicator blinks

 

 

ble

 

 

 

 

 

 

Engine oil level

Empty

Refill immediately

3-4

 

 

 

 

 

 

 

 

 

 

 

Oil filter clogged

Clean

4-12

 

 

 

 

 

 

 

 

 

 

Engine over-

Jet intake clogged

Clean

5-4

 

 

 

heated

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low battery

Battery voltage low

Charge

4-20

 

 

 

voltage

 

 

 

 

 

 

Battery terminal con-

Connect properly

4-20

 

 

 

 

nected wrong

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5-2