Posted by Bob M on May 18, 2012 at 19:30:31 from (74.67.189.51):
In Reply to: MD no spark posted by IAtractorKid on May 18, 2012 at 19:12:45:
Is the magneto making a loud "snap" every 1/2 revolution of the crank? If not the mag impulse coupling is not working. You'll need to remove the mag and clean/oil the impulse.
If the impulse is snapping, next then disconnect the wire running from the manifold switch to the mag. Could be the manifold shorting switch has stuck closed and is preventing the magneto from sparking.
If that doesn't do it, remove the mag cap and clean/re-gap the breaker points (set the points to 0.013)
Still no spark? Time to get in touch with a reputable magneto repair shop!
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