Trouble Recovery
EMU29422
A. Fill tank with clean, fresh fuel.
Troubleshooting
A problem in the fuel, compression, or igni- Q. Is fuel filter clogged?
tion systems can cause poor starting, loss of A. Clean or replace filter.
power, or other problems. This section de-
scribes basic checks and possible remedies, Q. Is starting procedure incorrect?
and covers all Yamaha outboard motors. A. See page 27.
Therefore some items may not apply to your
model.
Q. Has fuel pump malfunctioned?
If your outboard motor requires repair, bring A. Have serviced by a Yamaha dealer.
it to your Yamaha dealer.
If the engine trouble warning indicator is Q. Are spark plug(s) fouled or of incorrect
flashing, consult your Yamaha dealer.
type?
A. Inspect spark plug(s). Clean or replace
with recommended type.
Starter will not operate.
Q. Is battery capacity weak or low?
A. Check battery condition. Use battery of Q. Are spark plug cap(s) fitted incorrectly?
recommended capacity.
A. Check and re-fit cap(s).
Q. Are battery connections loose or corrod- Q. Is ignition wiring damaged or poorly con-
ed?
nected?
A. Tighten battery cables and clean battery A. Check wires for wear or breaks. Tighten
terminals.
all loose connections. Replace worn or bro-
ken wires.
Q. Is fuse for electric start relay or electric cir-
cuit blown?
Q. Are ignition parts faulty?
A. Check for cause of electric overload and A. Have serviced by a Yamaha dealer.
repair. Replace fuse with one of correct am-
perage.
Q. Is engine stop switch lanyard not at-
tached?
Q. Are starter components faulty?
A. Attach lanyard.
A. Have serviced by a Yamaha dealer.
Q. Are engine inner parts damaged?
A. Have serviced by a Yamaha dealer.
Q. Is shift lever in gear?
A. Shift to neutral.
Engine idles irregularly or stalls.
Q. Are spark plug(s) fouled or of incorrect
type?
Engine will not start (starter operates).
Q. Is fuel tank empty?
A. Fill tank with clean, fresh fuel.
A. Inspect spark plug(s). Clean or replace
with recommended type.
Q. Is fuel contaminated or stale?
55
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha 90D |
| Model Year | 2005 |
| Download File |
|
| Language | English |
| Product Brand | Yamaha 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 Type | |
| Publisher | yamaha-motor.com |
| Wikipedia's Page | Yamaha Motor Company |
| Copyright | Attribution Non-commercial |
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