![Yamaha 25B Owner'S Manual Download Page 187](http://html.mh-extra.com/html/yamaha/25b/25b_owners-manual_901532187.webp)
5-4
GB
Trouble
Possible Cause
Remedy
13. Poor connections or damaged ignition
wiring.
14. Failed ignition parts.
15. Specified engine oil not used.
16. Thermostat faulty or clogged.
17. Air vent screw closed.
18. Fuel pump damaged.
19. Fuel joint connection incorrect.
20. Heat range of spark plug incorrect.
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. Open the air vent screw.
18. Have serviced by a Yamaha dealer.
19. Connect correctly.
20. Inspect spark plug and replace it with
recommended type.
E. Engine power loss.
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.
69R-9-71 (GB,F,ES) 5 3/23/02 5:24 PM Page 7
Summary of Contents for 25B
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Page 204: ...EMU00450 Chapter 6 INDEX INDEX 6 1 GB 69R 9 71 GB F ES 6 3 23 02 2 37 PM Page 2 ...
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