
Merlin
Instruction manual V1.4
Pag:
8
Connect the 3 wire powerbus to the engine
and to the ecu. This lead can be extended.
Although Data signal can be used with lead
lengths up to 10 meters, the power looses
on power wires (red and black) will increase
with length, so thicker cooper section must
be used on long lengths. Up to 1 meter,
1mm2 section is OK.
If you make your
own extension lead, DOUBLE CHECK
THE POLARITY.
You will damage the
electronics inside the engine if polarity is
reversed.
Engine installation: Fuel system
Install the fuel system components as seen in the above picture.
Pump:
Note that the fuel pump has an arrow engraved in the front face
indicating the direction of the fuel flow. There are 2 types of pumps. Model
1304 are used on the engines up to 120N; model 1307 is used on engines
from 120 to 220N.
Fuel filter
The fuel filter must be installed close to the input port on the pump to prevent any particle to
enter in the pump and to damage it. Use a suitable length of the clear tubing supplied and keep
the tubing on the suction side as short as possible. Direction of flow inside the filter is not
important, but should be always the same after first use. Install the filter in vertical position with
the exit on top to not leave air trapped inside. Do not run the engine without the fuel filter.
Do not place anything (fuel filter, flowmeter, etc.) on the fuel line between the pump and the
engine. Check that the fuel line has the bends at suitable radius to prevent to the hose to be
pinched.
Finally connect the fuel pump and the battery to the ecu as shown.
The fuel pump is a delicate element, dropping it on the floor can
damage it, always handle with care. Never disassemble the fuel pump;
warranty from pump manufacturer will become void.
It is strongly recommended that, after a new installation or modification on the fuel system, to
disconnect the fuel hose from the engine, routing it to a appropriate container, and run the pump
few seconds using the “pump test function” on the ecu so that some fuel clean all the possible
dirt particles that could have entered in the system during installation.
Содержание MERLIN 100XBL
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