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This guide is intended to help you quickly learn the basics of starting your new LEHR propane outboard and is NOT intended to replace the Operator’s
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Manual. LEHR requires that operators read the operator’s manual before using the engine.
-Capt. Bernardo Herzer
PREPARE the ENGINE to RUN
Mount the engine on the transom of a boat or securely
on a stable work stand. The stability of a stand is highly
important. An outboard engine has a high center of gravity
and you can easily topple it onto yourself when pulling
hard on the starter rope. Be Safe!
The lower unit of the engine MUST be immersed in water.
Never attempt to start the engine out of the water.
Water pump damage can happen in a few seconds.
ADD OIL
Engines are shipped without oil and must be lled
before starting. Remove the engine cover and un-
screw the yellow plastic oil ll cap on the tiller side
of the engine.
Pour in 12 ounces (.35 L) of 10W-30 engine oil
(about 1/3 of a quart).
The oil may not be visible in the sight glass at rst
but will be once the engine starts running.
OIL FILL
CAP
SIGHT
GLASS
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Quick Start Guide
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LEHR LP2.5
INSERT LANYARD
The red coiled lanyard must have the black plastic end
clip inserted in the stop switch for the engine to run.
Attach the metal clip end onto your life vest or around
your wrist, this way if you go overboard, your boat
doesn’t motor away without you!
CONNECT the PROPANE
If you are using a 1 lb. (16.4 oz) “camping bottle”, insert
the bottle in the tray and screw on the brass hose connector. Then push the bottle as far forward as possible
and latch down the band clamp.
PRIME the PROPANE
Although not totally necessary, priming the propane system will help to
evacuate air from the new propane system and will ensure that a new
engine starts in just several pulls. This tip can help in very cold weather
starts or if the engine has not been run in some time.
- Be sure the propane is connected and turned on.
- With the engine cover off, locate the priming hole on the carburetor.
- Insert the priming tool into the hole and press lightly for about 3-4 sec.
You should hear a faint hissing sound as the propane is released.
IDLE SPEED
SCREW
If using a larger external tank such as a BBQ tank,
screw the supplied hose into the tank rst (left hand
thread), then connect the hose to the outboard.
You will need to unscrew the protective cap from the
brass connector and it’s a good idea to move it to the
rear hose end connector to protect it from water and dirt.
Open the valve on the tank slowly so as not to create a
sudden surge of ow.
Use only ONE fuel source at a time
!
PRIMING HOLE
START the ENGINE
Set the throttle to about 1/3 open and immediately pull the starter rope
after priming it.
When the engine starts, quickly reduce the speed to a fast idling speed
for a few minutes until the engine has warmed up.
ADJUST IDLE
After the engine is fully warmed up, it may be necessary to adjust the
idle speed a little slower or faster.
Turn the idle speed screw clockwise in very small increments to in-
crease the speed and counterclockwise to decrease the speed.
Adjust the speed just fast enough that the engine does not stall when
shifted into gear.
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