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SportsBoat_F4Y11.book Page 187 Wednesday, May 19, 2021 11:34 AM

Trouble recovery

TROUBLE POSSIBLE CAUSE REMEDY PAGE
Boat speed Cavitation Jet intake clogged Clean 188
too slow or Engine overheat* Jet intake clogged Clean 188
loses power
Cooling system Clean 151
clogged
Fuel filter Clogged Have serviced by Yamaha —
Boat Dealer
Spark plug Fouled or defective Have serviced by Yamaha —
Boat Dealer
Incorrect heat range Have serviced by Yamaha —
Boat Dealer
Gap incorrect Have serviced by Yamaha —
Boat Dealer
Fuel Stale or contaminat- Have serviced by Yamaha —
ed Boat Dealer
*Engine speed will be limited to 3500 rpm.

187