kohler k241 /welder update.

ACSam · May 10, 2014

I changed the engine from a magneto ignition to a battery ignition. No more intermitten spark. Runs perfect, all the time. The only thing is, there is no charging system so the battery will have to be recharged occasionally. I installed a 2 position key switch to be used to shut it off so the points won't stay hot and burn up. Used a kohler coil with internal resistor.
Thanks to everyone for the suggestions. It sure helps to come to the website for help.
PS. The original post is way down on page 5. This project got put on the back burner for a while.
Thanks again, Sam

El Toro · May 10, 2014

Look for a rectifier/regulator. Use a volt meter to see if you have AC voltage to the regulator. Should see about 30 volts. If you have AC voltage your regulator is probably defective. You need the engine at 1/2 throttle or better.
Hal

El Toro · May 10, 2014

Call Kohler and ask for a wiring diagram on your engine. You need the engine model & spec number.
Hal
1-800-544-2444
The numbers should be on the engine shroud.

Steve@Advance · May 10, 2014

Is there a 120v outlet on the welder? Plug a trickle charger into it!

joe csuti · May 11, 2014

Hal-after reading this post & his remark about no charging system on eng & also reading previous post about eng being used in a portable welder I would suspect eng is either rope or recoil start,on many of the old K series eng & tecumseh HH series eng the pulley for belt on a s/g setup could be used for belt drive or rope start.

ACSam · May 11, 2014

This engine is a 1972. I have the wiring diagram but this engine had a magneto ignition from new. It is a rope start as in old school, wind the rope and pull. Thank God for compession release. My problem was intermitten spark so it was missing out. The most likely issue, after everything new was changed, points, condensor, wiring, connectors, magneto(under the flywheel),and still the same exact problem. It all points to weak magnets in the flywheel. I don't usually just change parts to chase a problem but in this case I had no choice. No where could I find how to test the pull on the magnets or how much pull that should be. The only clear solution was to change to a battery ignition. It runs perfect. It has been im my shop for at least 3 monthe and I'm glad it is done. So is my customer.
PS, Steve, Great idea on the trickle charger!
Thanks to everyone for advice and suggestions. I always learn when I come here for help.
Thanks, Sam

El Toro · May 11, 2014

Touch the magnets with a flat blade screw driver.
Should attract the screw driver with a lot of effort. Hal

ACSam · May 12, 2014

I did touch with a screw driver and it did pull it strong but I couldn't tell how much was enough. Keep in mind it did start and run originally, but had a miss part of the time. My spark tester showed it would lose spark and then pick right back up. All I know for sure is after converting it, it runs perfect all the time. Cusomer is happy so I am happy.
Thank you Hal and everyone else for all the help.
Sam

El Toro · May 16, 2014

Your coil may have been weak in the mag. Hal

ACSam · May 18, 2014

Replaced the coil in the mag with oem kohler high dollar($120) coil. Didn't work. All this work was done according to the service manual. I lost money on this job but at least my customer is happy and it's out of the shop.

kohler k241 /welder update.

ACSam

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El Toro

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El Toro

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Steve@Advance

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joe csuti

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ACSam

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El Toro

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ACSam

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El Toro

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ACSam

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