Rotax Parts
Bing, Mikuni Parts
For Challenger
Fuel Circuit
Filters
Control Cables
Propellers
Instruments
Specialized Tools
4ST Installation
GPL electric starter
Floats

Download our drawing of the ideal fuel system for Rotax Aircraft Engines.
RotaxFuel.pdf / 105Kb / Adobe Acrobat format

Fuel System for
Rotax Aircraft Engines

Fuel Line

  • Translucent blue urethane fuel and primer line: the reliable and economical choice
  • Black fuel injection hose: the durable and super flexible choice
  • Internal diameters:
    1/8" for primer circuits
    1/4" for 2-stroke circuits and 4-stroke after the pump
    5/16" for 4-strokes before the pump

Pulse Line

  • This translucent, 1/4 i.d. line is much more rigid than fuel line. It is prescribed by Rotax for its efficient and durable transmission of pulses from the crankshaft to the pump on 2-stroke engines

Fine filter, water strainer and primer pump

5/16" and 1/4" injection line, 1/4" blue urethane, 1/4" pulse line and 1/8" primer line

Water Strainer (Gascolator)

  • A water strainer should be part of all aircraft fuel systems. It ensures that any water that could have been drawn into the system will not reach the engine
  • The one we sell is of a durable, all aluminium and steel design
  • It incorporates a fine metal mesh filter, a water drain tap and a third connection on top for your primer supply

Fine Filter

  • We offer a high quality, Bosch brand, fine plastic mesh filter
  • If installed with the elbow facing up, it will contribute to prevent water from getting to the engine

Primer pump

  • Our primer pump is a superior quality model made in the USA
  • The cheap imported variety is not recommended since its sealing deteriorates quickly, creating air leaks which on certain installations can create engine failures

Rotax and Mikuni Fuel Pumps

  • Spare Rotax and Mikuni fuel pumps are available from our inventory of genuine Rotax Aircraft Engine parts. Some repair kits are also available.