2004 Yamaha Outboard 8C Boat Motor Owners Manual

6M8-F9-17-5  2/4/03 9:49 AM  Page 4
E
Trouble
Possible Cause
Remedy
1.
2.
Propeller damaged.
1.  Have propeller repaired or
replaced.
2.  Install correct propeller to operate
outboard at its recommended
speed (r/min) range.
Propeller pitch or diameter incorrect.
3.
4.
5.
6.
7.
8.
Trim angle incorrect.
3.  Adjust trim angle to achieve most
efficient operation.
4.  Have motor adjusted to proper
transom height.
Motor mounted at incorrect height
on transom.
Boat bottom fouled with marine
growth.
Spark plug(s) fouled or incorrect
type.
Weeds or other foreign matter
tangled on gear housing.
Fuel system obstructed.
5.  Clean boat bottom.
6.  Inspect spark plug(s). Clean or
replace with recommended type.
7.  Remove foreign matter and clean
lower unit.
8.  Check for pinched or kinked fuel
line or other obstructions in fuel
system.
D.  Engine power loss.
9.
10.
11.
12.
Fuel filter clogged.
9.  Clean or replace filter.
10.  Fill tank with clean, fresh fuel.
11.  Inspect and adjust as specified.
12.  Check wires for wear or breaks.
Tighten all loose connections.
Replace worn or broken wires.
13.  Have serviced by a Yamaha
dealer.
14.  Check and replace oil with
specified type.
15.  Have serviced by a Yamaha
dealer.
Fuel contaminated or stale.
Spark plug gap incorrect.
Poor connections or damaged
ignition wiring.
13.
14.
15.
Failed ignition parts.
Specified engine oil not used.
Thermostat faulty or clogged.
16.
17.
Air vent screw closed.
Fuel pump damaged.
16.  Open the air vent screw.
17.  Have serviced by a Yamaha
dealer.
18.
19.
Fuel joint connection incorrect.
Heat range of spark plug incorrect.
18.  Connect correctly.
19.  Inspect spark plug and replace it
with recommended type.
5-3
Product Specification
CategoriesYamaha Outboard Manuals
Document TypeBoat Motor Manual Free Download. Marine Operator's Boating Guide.
Tags
Model Year2004
Download File
Please Enter the Security Characters Shown Below. Letters are Case Sensitive. Your download link will appear upon completing this step.
- 94 pages
LanguageEnglish
Product BrandYamaha Motor. Yamaha Motor Corporation, USA - Support Customer Relations for US: 1-800-962-7926
Yamaha Boats: 1-800-962-7926
Yamaha Outboard Customer Relations: 1-866-894-1626 , Yamaha Outboard
Document File TypePDF
Publisheryamaha-motor.com
Wikipedia's PageYamaha Motor Company
CopyrightAttribution Non-commercial
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