Ignition Electronics fried, bad voltage regulator?
So last year by boss got an ez go from a friend that didn’t run. He took it to a dealer and they installed some “electrical parts” according to him. Cart ran good for a while and then quit, it got parked until I came along. I determined the cart had low compression and had it rebuilt, and had a new/refurbished pulsar installed by whoever rebuilt it. After installing reman engine it still didn’t run. Determined weak spark, replaced coil and igniter and it ran GREAT for a while. Then it started shutting off and now won’t start at all. Zero spark, even worse than before. I think what fried this both times was the voltage regulator being bad. It looks like it is original and the cart has a ton of hours. I tested coil to diagnose spark 4 ohms primary and 11k ohms secondary. Well within spec. I tested the pulsar, and got 18.7 ohms and only .110 ac volts on the 2 volt setting. Does this mean the pulsar was burned out? I assume the igniter was burned out as well? Any advice would be very much appreciated
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Re: Ignition Electronics fried, bad voltage regulator?
Pulser
It generates about 1/2 volt AC Yours shows very low but it is generating something. Read post 10 here https://www.buggiesgonewild.com/showthread.php?t=152100 |
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Maybe you can find another known good pulser and see what happens. It should generate 1/2 volt AC if you got it set correct. What did yours ohm ? Something close to the picture I uploaded ? . |
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Did you check the pulser with a feeler gauge? I can't say for sure about overcharging causing a problem. |
Re: Ignition Electronics fried, bad voltage regulator?
Near anything 12v should be spec to roughly 10-15v range. Outside that range things may not work. Some people on here had VR that was going over 15v and accessories were freaking out. Some carts have solid state VR that turn on and off and can go over 15v when on, they turn on/off slow you can see headlights get bright and dim blinking. I've seen 15v charge in my car (car not cart) before but only after start up in very cold weather, you need more charge voltage in cold weather below freezing. It did not stay that high very long.
Most carts the generator will make higher voltage at high rpm, so if you have modded the cart to run higher rpm or run high speeds things burning out could be more likely from high voltage over 15v or so. Its doubtful they would make high voltage at 12mph and less or would be brief climbing a hill/etc. Seems like you would need a faulty VR to have that happen but check it to be sure. |
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When it is running did you check to see how many volts this cart is charging ? Where are getting these parts ? |
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