O.S. engine MAX-90FSR Instructions

O.S. engine MAX-90FSR Instructions

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Summary of Contents for O.S. engine MAX-90FSR

  • Page 3 INSTRUCTIONS FOR THE O.S. TYPE 7D CARBURETTOR This carburettor incorporates an automatic mixture control device which ensures that the engine receives a correctly balanced mixture of fuel and air at all throttle settings. It provides steady revolutions and a smooth response, even to abrupt operation of the throttle. Adjustment, when required, is very easy to carry out.
  • Page 4 Note Once the correct carburettor settings have been established, it should be unnecessary to alter them. Such slight needle-valve readjustments as may be required to compensate for variations in atmospheric conditions will not normally affect the other two controls. Slight readjustments may be necessary for optimum performance if different types of fuel, glowplugs or propellers are used.

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