Yamaha LZ250B, Owner'S Manual

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E
5-3
Trouble Possible Cause Remedy
E. Engine power loss.
13. Poor connections or damaged ignition
wiring.
14. Failed ignition parts.
15. Specified engine oil not used.
16. Thermostat faulty or clogged.
17. Fuel pump damaged.
18. Fuel joint connection incorrect.
19. Heat range of spark plug incorrect.
20. High pressure fuel pump drive belt
broken.
21. Engine not responding properly to shift
lever position.
13. Check wires for wear or breaks.
Tighten all loose connections.
Replace worn or broken wires.
14. Have serviced by a Yamaha dealer.
15. Check and replace oil with specified
type.
16. Have serviced by a Yamaha dealer.
17. Have serviced by a Yamaha dealer.
18. Connect correctly.
19. Inspect spark plug and replace it
with recommended type.
20. Have serviced by a Yamaha dealer.
21. Have serviced by a Yamaha dealer.
F. Engine vibrates
excessively.
1. Propeller damaged.
2. Propeller shaft damaged.
3. Weeds or other foreign matter tangled
on propeller.
4. Motor mounting bolt loose.
5. Steering pivot loose or damaged.
1. Have propeller repaired or replaced.
2. Have serviced by a Yamaha dealer.
3. Remove and clean propeller.
4. Tighten bolt.
5. Tighten or have serviced by a
Yamaha dealer.
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