Supra Sunsport 20V Owner's Manual page 25

A standard pre-starting procedure should be always be followed before the first start-up of the day.
1. Check the engine oil level.
2. Check for gasoline fumes in bilge or engine compartment.
3. Operate engine blower for 4 minutes before starting the engine to remove any fumes.
4. Check manual operation of bilge pump. Make sure bilge areas are empty.
Other items might also be inspected, depending on the boat and its use. It is advisable to formulate a check list
particular to the equipment and operation of your boat.
REFER TO THE BOATMAN'S CHECKLIST OF THIS MANUAL.
Consult the local Coast Guard Auxiliary or Power Squadron for full details on boating safety.
NOTE: Add-on electrical accessories should never be connected to the ignition terminal or ignition circuit.
IMPORTANT: DO NOT continue to operate the starter for more than 15 seconds at a time without pausing to allow the starter motor
to cool down for at least 2 minutes. This will also allow the battery to recover between starting attempts. PLEASE REFER TO ENGINE
OWNER'S MANUAL FOR ADDITIONAL DETAILS.
BEFORE STARTING ENGINE, BE SURE THAT THE SHIFT SELECTOR IS IN NEUTRAL.
The correct starting procedure depends upon the type of engine. Please refer to the engine manual before starting.
Do not start engine if gas fumes are present.
To Start Electronic Fuel Injection
(EFI) Engine
1. Place shift selector in Neutral with the throttle in the upright
(zero) position. (If throttle is not in the idle position, the
throttle position sensor will not allow the engine computer
to proceed with a normal starting procedure).
2. Turn Ignition Key to Start Position to operate the starter.
3. Release the Key when engine starts (key will return to run
position).
4. Allow the engine to establish a good idle (30 to 60 seconds)
before getting underway.
5. Shift slowly into forward or reverse, allowing the transmission
time to engage before powering up.
NOTE: It is normal for the idle to speed up in cold start
conditions.
DO NOT continue to operate the starter for more than 15
seconds at a time without pausing to allow the starter motor to
cool down for at least 2 minutes. This will also allow the battery
to recover between starting attempts. PLEASE REFER TO ENGINE
OWNER'S MANUAL FOR ADDITIONAL DETAILS.
© 2012 Skier's Choice, Inc.
NOTE: Should the EFI engine become "flooded" use the
following procedure to start:
1. Place shift selector in Neutral and disengage the transmission
by pushing the transmission lockout button located at the
bottom of the lever.
2. With the transmission disengaged, push the lever forward to
full throttle position. (This will cause the computer to shut
off the fuel injectors, which will allow the engine to clear of
excess fuel during starting).
3. Turn the Ignition Key to Start Position and operate the starter
for no more than 15 seconds at a time, until the engine
starts.
4. When the engine starts, back off the throttle and allow the
engine to establish a good idle (30 to 60 seconds).
5. Return the throttle to idle position and the transmission
lockout will automatically reengage the transmission in
neutral position.
6. When ready to get underway, shift slowly into forward
or reverse, allowing the transmission time to engage the
gearing before powering up.
Section 
Starting & Operation
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