4-13
PROBLEM
POSSIBLE CAUSE
SOLUTION
Engine will not turn
• Throttle control in gear.
• Shift into neutral.
over
• Main circuit breaker open.
• Reset circuit breaker.
Engine turns over, but
• Safety lanyard not connected. • Connect safety lanyard.
will not start
• Stop switch not set.
• Reset switch.
• No fuel to engine.
• Turn fuel valve to ON.
• No fuel in tanks.
• Fill fuel tank.
• Fuel filter clogged.
• Replace fuel filter.
• Contaminated fuel.
• Replace fuel and filter.
• Distributor problems.
• See your dealer.
Engine is hard to start
• Flooded engine.
• Start engine full throttle
and back off.
• Plugged flame arrestor.
• Clean flame arrestor.
• Fouled spark plugs.
• Replace spark plugs.
• Loose coil or ignition wires.
• Tighten coil or ignition
wires.
• Battery cables loose or
• Clean and tighten battery
corroded.
cables.
• Weak battery.
• Charge or replace the
battery.
• Ignition problems.
• See your dealer.
Engine misses or
• Fouled spark plugs.
• Replace spark plugs.
idles rough
• Loose of defective high-
• Tight or replace the high-
tension leads.
tension leads.
• Plugged PVC valve.
• Replace PVC valve.
• Weak ignition coil.
• Replace ignition coil.
• Vacuum leak.
• See your dealer.
Poor boat performance • Fouled spark plugs.
• Replace spark plugs.
• Contaminated fuel.
• Replace the fuel and filter.
• Plugged flame arrestor.
• Clean the flame arrestor.
• Weak ignition coil.
• Replace the ignition coil.
• Fuel filter clogged.
• Replace the fuel filter.
• Ignition problems.
• See your dealer.
Poor gas mileage
• Fouled spark plugs.
• Replace spark plugs.
• Plugged flame arrestor.
• Clean the flame arrestor.
• Inefficient driving habits.
• Plan the boat quickly, then
slow down to desired speed.
• Plugged PCV valve.
• Replace PCV valve.
• Ignition problems.
• See your dealer.
Chapter 4 doc.qxd 8/17/04 3:10 PM Page 13