4.6.
Installing the discharged hose – not supplied.
4.6.1.
Connect the discharge hose(3) to the to the hose
connector (1) and hose clamp (2) provided with the pump
to install the discharge hose, then tighten the clamp.
Tighten the hose clamp ring screw in a clockwise direction
until hose is firmly secured to prevent hose becoming
detached.
4.6.2.
For best results use a short, large-diameter hose as it
will reduce fluid friction and improve the pump output.
4.7.
Priming the Pump.
Operating the pump is a dry unprimed condition will damage the pump seal.
If the pump has been accidently operated in a dry state, stop the engine immediately and
allow it to cool before priming.
4.7.1.
Before starting the engine, place the water pump
on a flat level surface and fill the pump with water.
4.7.2.
Unscrew the priming plug (1) and fill the pump
full with clean water.
4.7.3.
After priming, reinstall the priming plug and
tighten.
4.7.4.
DO NOT unscrew the priming plug during
operation of the water pump.
4.8.
Using at high altitudes.
4.8.1.
At high altitude, the standard carburetor air-fuel mixture will be excessively rich.
4.8.2.
As a result output power will decrease, and fuel consumption will increase. The Air-fuel
mixture will be very likely to make the spark plug dirty and make starting difficult.
4.8.3.
The engine performance can be improved by installing a main fuel jet of a smaller diameter
in the carburetor and readjusting the pilot screw. If you intend to regularly use the water
pump at altitudes greater than 1000m above sea level, contact us regarding a carburetor
modification.
4.8.4.
Even with a suitable carburetor, the engine horsepower will decrease by around 3.5% for
each 300 meter increase in altitude. The effect of altitude on horsepower will be greater than
this if a carburetor modification is not made.
If a carburetor suitable to high altitude is equipped with an engine suitable to a lower altitude,
the lean air fuel mixture will lead to lower engine output power, over-heating and serious
damage.
Rev 6 - 10/11/2015
