Re: Mag/distrubutor removal and reinstall

Posted by Andy Motteberg on January 08, 2007 at 12:42:31 from (4.143.104.92):

In Reply to: Mag/distrubutor removal and reinstall posted by G Campbell on January 08, 2007 at 07:04:33:

TIMING THE MAGNETO:

Timing of the magneto can be changed by loosening the two magneto attaching screws and swinging the top of the magneto toward the crankcase for retard and away for advance. The impulse coupling missing speed is 150 r.p.m.

When replacing the magneto, crank the engine so that the no.1 piston is at TDC. Remove the distributor cap, and turn the magneto until the distributor rotor points toward no.1 on the cap, then fasten the magneto to the bracket. Be sure the prongs on the coupling engage the slot in the drive shaft. Next rotate the top of the magneto toward the crankcase as far as possible and crank the engine again to no.1 TDC. Now move the magneto away from the crankcase until the impulse coupling trips. Complete the tightening of the holding cap screws; the engine is now timed.

To tell if it's on TDC, remove the no.1 spark plug and place your thumb over the hole and slowy crank over the engine, you should feel compression, but feel carefully when the pressure JUST stops, it's on TDC.

If this is not the info you need or you need more help, let me know.

Good luck!

Andy Motteberg

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