5-2
5
T
ROUBLE
R
ECOVERY
** Engine speed will be limited to 3,500 rpm by the overheat warning device.
troUBLE
poSSiBLE
CaUSE
rEmEDY
paGE
Engine runs
irregularly or
stalls
• Fuel
Empty
• Refill as soon as possible
3-2
Stale or
contaminated
• Have serviced at
Yamaha dealer
• Fuel filter
Water or dust
collected
• Have serviced at
Yamaha dealer
• Spark plug
Fouled or defective
• Replace
4-7
Incorrect heat range
• Replace
4-7
Gap incorrect
• Adjust
4-7
• Spark plug cap
Loose
• Fit properly
4-7
Loose electrical
connections
• Tighten or connect properly
4-7
Cracked, torn or
damaged
• Replace
Engine won’t run
over 3,000 rpm
• Engine
overheat**
Jet intake clogged
• Clean
5-5
Cooling system
clogged
• Clean
4-1
Boat speed
too slow or
loses power
• Cavitation
Jet intake clogged
• Clean
5-5
• Engine
overheat**
Jet intake clogged
• Clean
5-5
Cooling system
clogged
• Clean
4-1
• Fuel Filter
Clogged
• Have serviced at
Yamaha dealer
• Spark plug
Fouled or defective
• Replace
4-7
Incorrect heat range
• Replace
4-7
Gap incorrect
• Adjust
4-7
• Spark plug caps
Loose
• Fit properly
4-7
• Fuel
Stale or
contaminated
• Have serviced at
Yamaha dealer