Spark...but no spark! (re-post)

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  #1  
Old 04-27-09, 08:36 AM
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Spark...but no spark! (re-post)

Hello all,

This is my first, but won't be my last, post in the DIY Forum. I have a Tecumseh OHH50 on my sons go cart. The cart is older, I don't know exactly how old. It has been at my fathers farm for a couple of years and sitting outdoors. My son and I decided to bring it home and make it our project to get this thing going like a bat outta Hades. This is to be a learner project for the boy as he wants to build a '73 Firebird Formula with me for his first car. (he is 12) So, we tear it down and do the basics first. Clean the carb, change the oil, change the air filter, and change the plug. Here is where it gets weird. After a few pulls I can tell it is missing one of the main 3 (fuel/air/spark). So I go to check spark first...no spark. So I pull out the plug and stick an allen wrench in there and give her a yank. Yep, it shocked me. So I figure I got a bad plug. Went back to the store and I made sure I had the OEM spec Champion N4C. Brought it home, same thing! There is fire in the wire, but not on the plug! I am stumped. Anyone?

re-posted to correct forum.
 
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Old 04-28-09, 09:34 PM
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Put a screwdriver in the plug wire socket and see if you can jump a spark from the screwdriver shaft to a ground. If you can you can get a spark to jump the plug gap, if you can't you only have enough voltage to shock you and not jump the gap = new coil/module if the engine is after 1986. If the engine is before 1986 it could not only be the coil, but the points or condenser.
 
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Old 04-29-09, 05:13 AM
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Originally Posted by marbobj View Post
Put a screwdriver in the plug wire socket and see if you can jump a spark from the screwdriver shaft to a ground. If you can you can get a spark to jump the plug gap, if you can't you only have enough voltage to shock you and not jump the gap = new coil/module if the engine is after 1986. If the engine is before 1986 it could not only be the coil, but the points or condenser.
You are correct sir. Yesterday I visited my local hardware store and spoke to the resident Tecumseh specialist. He assured me that I were able to maintain a hold on that coil wire that it did NOT put out the 30,000+ volts that it is supposed to. So, now I have to replace the CDI...which is gonna set me back $50! I only paid $150 for the whole cart 3 years ago! Does anyone in here know where I can pick up a CDI for a Tecumseh ohh50 for less than say...FREE?!
 
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