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SportsBoat_F4Y12.book Page 189 Tuesday, July 5, 2022 1:54 PM

Trouble recovery

TROUBLE POSSIBLE CAUSE REMEDY PAGE
Boat speed Cavitation Jet intake clogged Clean 190
too slow or Engine overheat* Jet intake clogged Clean 190
loses power
Cooling system Clean 152
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.

189