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23dfb B&S engine

no spark

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7 replies to this topic

#1 mlevan OFFLINE  

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Posted February 12, 2016 - 07:45 AM

Good morning,

I,ve not been on the forum for several months now.Long story short,I spent most of last summer restoring a 1963 Jim Dandy.Had everthing done and driving tractor around parking lot and engine quits,no spark.I changed spark plug,points,condenser,ignition coil,flywheel,new lgnition switch,wiring,rechecked all tolarences and it,s still barnyard dead, so I put it away for the winter.Getting ready to get it back out in a few weeks.Any suggestions would be appreciated.At this point I don't know what to do next.

                                    Thank you



#2 DougT ONLINE  

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Posted February 12, 2016 - 07:59 AM

Here is a manual that has some good info on the ignition systems.  http://gardentractor...30pt-1-and-pt2/


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#3 Tecumseh power OFFLINE  

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Posted February 12, 2016 - 10:00 AM

Separate the engine from the tractor wiring. Then try it.you may have an issue with the switch or harness. Points systems are very simple to get to work.
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#4 Bolens 1000 ONLINE  

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Posted February 12, 2016 - 10:31 AM

One sure fire way to check ignition is get an inline spark tester to see if your getting good spark when the plug is in


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#5 boyscout862 ONLINE  

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Posted February 12, 2016 - 10:44 AM

Check all wires for scratches in the insulation (shorting out). The most common problems are: dirty points, bad key switch, wire into points box is shorting, mouse nest in shroud and they chewed the wires. I use a multimeter(free from HF with coupon) set on resistance for looking for shorts(disconnect the battery first). Good Luck, Rick



#6 Oldford OFFLINE  

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Posted February 12, 2016 - 12:35 PM

Turn on the key and pry the points open and closed a few times with a flat screwdriver in between.  If they don't spark you know the problem is somewhere behind the points.  If they do spark then the problem is downstream


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#7 glgrumpy OFFLINE  

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Posted March 06, 2016 - 03:25 PM

Have found good clean grounds for the points where they touch the block and the areas on back of coil and it's mount screws to get good ground makes difference. Check that coil ground wire on same screw there, very fine wire.  Also make sure wire from coil back to the sheet metal screw is good and that none of t hose wires or screw ground out to block. That is a plastic or fiber insulator there. Wires might have cut where passing thru tin near there also. Try different point settings?



#8 DougT ONLINE  

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Posted March 06, 2016 - 04:55 PM

Turn on the key and pry the points open and closed a few times with a flat screwdriver in between.  If they don't spark you know the problem is somewhere behind the points.  If they do spark then the problem is downstream

This doesn't work with a magneto ignition like this engine has. It would only work in a battery and coil system.







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