Care And Maintenance 18 - O.S. engine max-21RG-M Owner's Instruction Manual

CARBURETTOR CLEANLINESS
Proper functioning of the carburettor depends on its
small fuel orifices remaining clear. The minute
particles of foreign matter that are present in any fuel,
can partially obstruct these orifices and upset mixture
strength so that engine performance becomes erratic
and unreliable. It is recommended that fuel is passed
through a filter when the tank is filled and that a good
in-line filter is installed between the fuel tank and
carburettor and, furthermore, that this filter is
frequently cleaned to remove dirt and lint that
accumulate on the filter screen. Finally, occasionally
remove the needle-valve holder from the carburettor
as shown below and extract any remaining foreign
matter that may have lodged in the location shown.
Remove this with an
8mm spanner
Dirt and fibrous matter
mostly accumulate here
CARE AND MAINTENANCE
To ensure that you obtain long life and peak
performance from your engine, observe the following.
1
As previously observed, foreign matter in the fuel
can cause problems. Therefore:
rinse out the fuel tank with methanol or fuel before
installing it.
Install a fuel filter to the fuel delivery tube between
tank and carburettor.
Install a fuel filter to the outlet of your squeeze
bottle, or to the pump inlet if you use a manual or
electric pump. *
do not leave your fuel container open needlessly.
O.S. 'Super-Filter' (L) is available, as optional ex-
tra,to deal with this problem. To fit this filterto the
outlet tube inside your refuelling container, will pre-
vent the entry of foreign material into the fuel tank.
2
Do not forget to clean the filters regularly to
remove dirt and lint that accumulate on the filter
screens. Also, clean the carburettor itself
occasionally.
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