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minute of water, so use an appropriate water screen.

The engine is designed to run at about 190 F, (

pump can be restricted if the salt water is too cold to allow the en-

gine to reach temperature. If the engine runs too cool, there will be

a buildup of carbon. The cylinder head should be running at about

230-250 F.

The marine heat exchanger should be ﬁlled with a solution of water

and antifreeze, mixed 50:50. Do not pour antifreeze directly into

the exchanger . . . always pre-mix the antifreeze and water before

pouring into the heat exchanger.

Exhaust System

Depending on where the Genie is mounted, and whether the ex-

haust is above or below the point of water injection into the exhaust,

a water lift mufﬂer and perhaps a siphon break will be required.

If the Genie is well above the water line, then it is possible to do

without a water lift mufﬂer. Just be sure that all of the exhaust hose

is below the point where water is fed into the exhaust, so that no

backﬂow into the dry mufﬂer is possible.

If the engine is above the water line, but some part of the exhaust

is higher than the point where water is fed into the exhaust, a water

lift mufﬂer is required.

NOTE: A siphon break device is necessary if the engine is be-

low the water line. The siphon break should be mounted at least

24 inches above the water line . . . more if mounted off the boat's

centerline.

NOTE: Any time a water lift mufﬂer is used, engine cranking must

be limited to avoid ﬂooding the engine. Since engine exhaust is

necessary to pump the cooling water overboard, sustained cranking

when the engine doesn't start can ﬂood the engine. If the engine

doesn't start after 20 seconds of cranking, disconnect the water

pump electrical feed or shut off the raw water intake until the en-

gine is running. Don't forget to re-connect the water pump once

the engine runs.

A common problem with generators on small sail boats is ﬂooding

of the engine via the exhaust. Be aware that surge from following

seas can drive salt water into the exhaust. The exhaust should be

equipped with a shutoff valve so that the engine will not take on

water in heavy weather.

Electrical System

The electrical system includes an electric starter, as well as the high

output alternator. One or more glow plugs are also present on the

engine. The glow plug, throttle solenoid and starter motor all oper-

ate from 12-volts, even on 24-volt and 48-volt models. A DC-DC

converter can be used from the 24 or 48–volt supply to generate

12–volts to maintain a cranking battery.

Note that two and three cylinder engines include a small 12V alter-

nator to maintain the starter battery.

Cor manually operated engines, a control switch is provided which

allows the engine to be operated. Positions on the control switch

are:

Pre-heat . . . . . . . . . . . . . . . . spring loaded, counter clockwise

Off . . . . . . . . . . . . . . . . . . . . . . counter clockwise rest position.

On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . clockwise rest position.

Start . . . . . . . . . . . . . . . . . . . . . . . . . . spring loaded, clockwise.

If the engine looses oil pressure, or water temperature is excessive,

then the engine will stop.

C). The water

Mounting the Genie

The Genie is equipped with four vibration dampening feet. The

feet should be attached securely to a mounting ﬂoor. The mount-

ing feet are failsafe, that is, they will not mechanically separate.

However, the rubber compound will wear so periodic checks on

the feet is advised.

Plumbing the Marine Exhaust

After the Genie is securely fastened to the ﬂoor, the exhaust can be

plumbed. If no water lift mufﬂer is used, simply attach the exhaust

hose to an exhaust thru-hull ﬁtting. Be sure that all of the exhaust

is below the point that water is injected into the exhaust line. It is

advisable to secure the exhaust hose with two hose clamps.

If a water lift mufﬂer is used, chose an appropriate location for it

as close to the Genie as possible, and secure it to the ﬂoor. Ex-

haust hose can now be run from the Genie to the water lift mufﬂer,

and from the mufﬂer to a proper thru hull ﬁtting. The exhaust hose

should be run as high as possible before it exits the hull so that

sea water can not back ﬂood the engine. See instructions from the

waterlift manufacturer.

Exhaust hoses for the Genie are 1.5 inches, inner diameter. The

exhaust thru-hull ﬁtting should be 3-4 inches above the water line.

A valve to protect the exhaust from ﬂooding in heavy weather is

suggested.

Plumbing the Marine Cooling Water

To plumb the cooling water, a separate thru-hull intake is required.

A sea strainer is also necessary. If the Genie is mounted in a plan-

ing hull, be sure that the intake is underwater, even when planing.

Water hose size for the Genie is 1/2 to 5/8 inch. Connect the thru-

hull to the sea strainer, and the strainer to the water pump. We

recommend the use of two hose clamps on each connection. Hose

clamps should be made from all stainless steel.

If the Genie is not mounted at least 24 inches above the water line,

a siphon break is required between the heat exchanger and the ex-

haust. The siphon break should be mounted well above the water

line.

Plumbing the Fuel System

The engine must be connected to a fuel source with positive pres-

sure. As mentioned, a gravity tank or a fuel pump is necessary.

Fuel to the engine connects to the ﬁtting near the throttle. Do not

let the fuel line interfere with the throttle mechanism. A fuel return

line must be connected to the fuel tank. The return ﬁtting is located

at the injector nozzle.

Electrical Wiring

Wires are required on the starter and the alternator.

The Regulator should be wired according to the manual for the reg-

ulator and must be wired to activate current limiting. While current

limit is pre-set at the factory, it is good practice to re-adjust it after

installation.

Consult the system wiring diagram for units supplied with the En-

erMatic Controller.

The starter must be wired to a 12-volt battery for starting. It can