tecumseh 4 hp no spark


Old 10-21-11, 06:38 PM
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Join Date: Oct 2011
Location: usa
Posts: 1
tecumseh 4 hp no spark

hey guys new to site. have a old minibike with 4 hp tecumseh-- model hs40-55394c . no spark, what to check first ?

thanks, david
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Old 10-21-11, 08:00 PM
Join Date: Jan 2011
Location: canada
Posts: 87

If there is no spark you have a problem with your electronic ignition. Check the gap between the flywhell and the electronic ignition. Should be around .012 or a business card width.

You may also have a ground somewhere. Take the wire off the bottom if the electornic ignition. Then see if you have a spark. If you do, you are grounded and have no spark at the plug.

Might want to check you have a good plug too.

Good luck!
Old 11-09-11, 11:01 AM
puey61's Avatar
Join Date: Apr 2004
Location: Upstate New York
Posts: 3,224
This engine, I believe, has points and condensor, not solid state ignition. You likely have a bad set of points and condensor.
Old 11-10-11, 01:53 PM
Join Date: Mar 2009
Location: Texas
Posts: 1,051
Also could be a bad magneto coil.
Old 11-22-11, 09:56 PM
pist-n-broke's Avatar
Join Date: Nov 2011
Location: Canada
Posts: 9
I agree with the " points and condenser" I bet a quick swipe with a narrow folded strip of sand paper and you'll be all over that back yard like a hobo on a ham sandwich! Ride safe!
Old 12-21-11, 11:02 PM
Join Date: Oct 2010
Location: USA
Posts: 212
In my experiences its usually the condensor that dies. Pretty cheap to replace. Make sure the points are clean & gapped correctly. If its the coil I believe there is a way to test continuity to find out if its open or shorted.
Good luck & let us know if you get'er goin'!!!


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