O.S. Engines 12CV-R (P) - Manual (Page 11)

Position the air cleaner correctly, so that it does not
foul the cylinder-head or obstruct the needle-valve.
INSTALLING THE FILTER ELEMENT
The element is already impregnated with a special
filter oil. As this oil is very sticky, take care, when
handling it, to prevent dust or dirt from adhering to the
element. If your fingers become contaminated, wash
them with soap and water.
During storage, the oil may
have become unevenly
dispersed through the element.
This will be indicated if the blue
colour of the element material
appears patchy. In this case,
place the element in a small
plastic bag and gently rub it
between finger and thumb to
redistribute the oil.
It is advisable to replace the filter element with a new
one after not more than one hour of running time.
Always remove contaminated elements carefully, to
ensure that dirt cannot enter the carburettor.
REPLACEMENT OF ELEMENT
Insert beneath flange
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NOTES CONCERNING THE RECOIL STARTER
( 12CV-RX ONLY)
REMINDER!
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Do not attempt to disassemble the recoil
starter. If you do so, the very strong
spring inside will be suddenly ejected.
This can be very dangerous.
Do not extend the starter cord more than
45cm(18"). Do not abruptly release the
operating handle. Allow the cord to rewind
smoothly while still holding the handle.
Pull the operating handle straight out
when starting the engine, so that the cord
does not rub against the vehicle body or
engine.
This will help prevent the cord from being
damaged by abrasion or engine heat.
Try to avoid spilling fuel over the starter
unit and its cord. Some fuels have a
detrimental effect on these parts.
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