Yamaha EXCITER Owner's/operator's Manual - Roubleshooting
5
5-2
T
ROUBLESHOOTING
& S
PECIAL
P
ROCEDURES
TROUBLE
POSSIBLE CAUSE
REMEDY
Page
Engine runs
• Fuel
Empty
• Refill as soon as possible*
3-3
irregularly or
Stale or
• Have serviced at
stalls
contaminated
Yamaha dealer
Oil and gasoline
• Have serviced at
mixture is too rich
Yamaha dealer
• Choke
Knob is left pulled
• Push it in fully
2-8
• Fuel filter
Water or dust
• Have serviced at
collected
Yamaha dealer
• Spark plug
Fouled or defective
• Replace
4-6
Incorrect heat range
• Replace
4-6
Gap incorrect
• Adjust
4-6
• Spark plug cap
Loose
• Fit properly
4-6
Loose electrical
• Tighten or connect properly
4-6
connections
Cracked, torn or
• Replace
damaged
• Carburetor
Incorrect idle
• Adjust
4-12
Adjustment
Clogged
• Have service at
Yamaha dealer
Engine won't run
• Engine
Jet intake clogged
• Clean
5-4
over 3,500 rpm
overheat**
Cooling system
• Clean
4-1
clogged
Jet Boat speed
• Cavitation
Jet intake clogged
• Clean
5-4
too slow or
• Engine
Jet intake clogged
• Clean
5-4
loses power
overheat**
Cooling system
• Clean
4-1
clogged
• Fuel Filter
Clogged
• Have serviced at
Yamaha dealer
• Spark plug
Fouled or defective
• Replace
4-6
Incorrect heat range
• Replace
4-6
Gap incorrect
• Adjust
4-6
• Spark plug caps Loose
• Fit properly
4-6
• Fuel
Stale or
• Have serviced at
contaminated
Yamaha dealer
* Turn the fuel cock to “RES” (reserve) to return to shore.
** Engine speed will be limited to 3,500 rpm by the overheat warning device.