Before Use - Williams TURBOJET 285 Mode D'emploi

This boat uses a water-jet propulsion system and has unique characteristics in steering. The
throttle produces thrust from the jet pump, the directional control is provided by opening the
throttle and turning the wheel in the direction of your turn. High thrust will turn the boat sharply;
low thrust will produce less turning force. There is no rudder, so while underway there is no
steering without thrust.
If weed or debris gets caught in the jet unit during use cavitation can occur causing a decrease
in forward thrust. If this condition is allowed to continue the engine may overheat resulting in
serious damage. If there is any sign of debris or weeds etc. blocking the jet, remove the boat
from the water.
Switch off battery isolator and remove all debris from around the jet unit. DO NOT make
repeated attempts to start a blocked or jammed tender as engine damage may result.
In case of difficulty consult your Williams authorized dealer. (A full list of authorized dealers/
engineers is available at www.williamsjettenders.com)
Recovery
CAUTION. Do not attempt to lift or recover the tender by the transom. Any stern-up
angle will cause water to enter the engine from exhaust system and will result in serious
engine damage.
Towing Valve
CAUTION. Risk of engine flooding exists. Towing valve
fitted. Valve must be in CLOSED position when your tender
is being towed and OPEN position when your tender is being used.
Failure to observe correct valve position will result in serious engine
damage.
Mooring
CAUTION. Do not leave the Turbojet moored for extended
periods as this may result in an accumulation of marine
growth and a loss of performance.
Beaching
CAUTION. DO NOT operate in less than 0.6m/2ft of water as debris may enter
the jet unit. DO NOT drive Turbojet onto beach. Stop engine before beaching as
damage to pump/engine cooling may occur.
After beaching, move boat into deeper water and rock from side to side several times to
remove sand from intake area – failure to do so could cause damage to jet unit.
Trim
CAUTION. Do not overload the boat. At all speeds be aware of trim and keep weight
evenly distributed.
General
CAUTION. Operate the boat with due care and at a speed appropriate to the sea
conditions. Be aware of local laws and restrictions. Always carry out a visual check of
the boat and its components prior to use. Adhere to the maintenance schedule.
WARNING. Manoeuvrability is restricted while decelerating. Familiarize yourself with the
boat's handling.
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New Engine Break-in Period
Textron Motor GmbH recommends that during the first five hours of operation, you should
not operate the engine over 6,000 RPM. This protective running-in has a positive effect on the
engine's lifespan.
Fuelling
As part of its pre-delivery inspection your new Turbojet has been fully tested and drained
of fuel.
• Ensure ignition is in OFF position.
• Remove seat cushion to expose filler cap.
• Re-fuel in a ventilated area.
• Do not overfill the tank; be careful not to spill fuel.
• Tighten fuel cap securely after re-fuelling.
• Open engine hatch and inspect bilges after re-fuelling.
• The filler cap has an integral breather.
Do NOT hose around the fuel filler area as water may enter the fuel tank.
IMPORTANT! Do not use fuel from fuel pumps labeled E85.
Use of fuel labeled E15 is prohibited by U.S EPA Regulations.
Fuel containing Ethanol can result in problems in the fuel system and engine, resulting in:
• Starting and operating difficulties.
• Deterioration of rubber or plastic parts.
• Corrosion of metal parts.
• Damage to internal engine parts.

Before Use

Tube pressure will fluctuate with temperature. Inflate tubes in sequence to 250mB/3.6psi.
Failure to observe this will compromise the sea-keeping ability and watertight integrity of the
boat. Inflation valves are fitted with quarter-turn locks to enable rapid deflation.
CAUTION. Tubes must be inflated in the correct sequence to prevent
over-inflation.
• Set valves to shut and inflate tubes evenly, starting at rear/right, rear/left, then forward
valves.
• Check bilge for fuel or water contamination.
• Tighten footwell drain plugs.
• Ensure towing valve is set in open position.
• Check engine cover latches are secure.
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