Motorstar NA: Radial Aircraft Engine Sales And Service

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Shower of Sparks Kit -- $275.00

 Shower of Sparks System Installed

5 Cylinder Conversion Kit For Slick Magnetos --$ 175.00

We now sell a conversion kit to make a slick 4 cylinder magneto into a 5 cylinder magneto. Our conversion kit for Slick magnetos contains the following items:

  • an aluminum cover;
  • a gear (from high pressure polyethylene);
  • a plug which holds the gear on the rotor shaft (from high pressure polyethylene);
  • a distributor cover (from textolite or hard plastic).
We used the distributor gear of the magneto because it has 40 teeth. For 5 cylinders the gear ratio between the magneto rotor and crankshaft has to be
1.25 (the magneto has 2.5 sparks per revolution). The gear ratio between distributor gear and the magneto rotor has to be 2.5. We did the gear of the rotor with 16 teeth (40/16=2.5).
 
For more information, email us at This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
 

Alternator Kit

 Alternator Kit

These adapters allow the installation of the Skytronics alternator on the M14 series engines. The complete kit includes the adapter shown and a 50 or 70 Amp alternator. The alternators come with a solid state regulator that includes overvoltage protection. We have also a Yak-52 install kit that will replace the Yak generator, regulator, overvoltage relay and the reverse current relay. They will save considerable weight as well as make it much more reliable.

Alternator Wiring Schematic

Please contact us at This e-mail address is being protected from spambots. You need JavaScript enabled to view it for details.