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Old 02-28-2012, 04:26 AM   #51
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Yamaha
 
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Default Re: 4 stroke HEI Conversion

Hey everyone i don't mean to hijack this thread [if thats what i am really doing] I have followed this for a few days now because i am interested in doing the HEI swap to my yamaha g2.My thinking is,since you can put an ezgo igniter on o yamaha and a hei on an ez go should you not also be able to wire in the HEI to the yamaha as well?Keep up the good work on this cart as I am following closely.
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Old 03-07-2012, 08:45 PM   #52
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E-Z-GO
 
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Location: Dothan, Al
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Default Re: 4 stroke HEI Conversion

Hello All, It took two tries but I think I now have the hei working on my ez-go 295cc. I picked up the hei for $19 and ordered what I thought was the right coil. Could never get it to run smooth, It would skip and backfire. Tried all combinations of wiring with the same results. My original coil looked to have a weak spark. The plugs were fouling and would be wet when I pulled them. Someone (I have to go back and find a name so I can think them) said what I had was not a coil even though it looked like one. I ordered a different coil for $15. It arrived today. Wired to test and the engine fired right up and idled and reved smooth. I had purchased new plug wires for the last coil. It ran so good I though I would install the hei. It ran rough and backfired until I reversed the pulsar wires on the hei. That solved the problem. It cranks, idles and revs up good. I plan on road testing it tomorrow. If all goes well, I will wire it in permanently and post photos.
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Old 03-07-2012, 08:55 PM   #53
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Default Re: 4 stroke HEI Conversion

Thanks to bonduranth for one of your reply's in this thread. I was going to settle using the original coil and reduced performance until you posted. I did find a $15 coil that worked.
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Old 03-08-2012, 10:46 PM   #54
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E-Z-GO
 
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Default Re: 4 stroke HEI Conversion

Richard, would you mind giving details of the $15 coil you bought? I'm in the same boat it sounds like you were in. I've got the HEI module and the GM "coil" installed on my 1999 TXT but no matter how I set the pulsar wires or the coil wires, the motor will start and idle but as soon as I give it gas, it starts sputtering. I haven't been able to get it smoothed out. I'd really like to get this setup working and it sounds like you've found the right combination.
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Old 03-09-2012, 08:24 AM   #55
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Default Re: 4 stroke HEI Conversion

Good Morning dpatterson, I tried to send you a PM with all the purchasing details but you must not be able to receive PM at this time. I got the coil off ebay. It was a new GM coil to fit S10 pickup, sedan, corvette (230665273233). I ended up taking out the original wiring and used the drawing in this post to install new wiring. I did have to reverse the pulsar leads. I did a road test and am happy with the results. I have also rewired so it will crank on the key switch and idle. The big improvement with the hei on my cart is the cranking and idle. Fires up with no choke now and is really smooth. I tried to add a couple of photos, but not sure how. I am starting today putting the cart back together.
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Old 03-09-2012, 12:26 PM   #56
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Default Re: 4 stroke HEI Conversion

Thanks for the info! The coil I have I picked up from advance auto parts and is for a 1990 Buick Century...which is in the compatibility list of the on you suggested...and looks like the one in the picture. But for $15, it's worth a try so I'll probably pick up one of these. I'm beginning to suspect my wiring though. Based on what you did, this weekend I'll bypass the old wiring harness and see if that makes a difference. It's good to hear you had success so it gives me hope.

David
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Old 03-09-2012, 12:40 PM   #57
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Default Re: 4 stroke HEI Conversion

I had a few small issues until I changed the wiring. I had some corrosion on connections. I also made sure the hei module was to a hard ground and on a good heat conductor.[/IMG]
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Old 04-09-2012, 10:37 PM   #58
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Default Re: 4 stroke HEI Conversion

Thanks for the great info here guys. I have a 93 with the Eh29C engine and I think the coil or igniter is out. I really do not want to spend the big bucks from ezgo so I would really like to try the mod you guys are talking about. What is the part #'s for the coil and hei you used. I am going to check the pulsar also. Any pictures and info will be greatly appreciated.
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Old 04-09-2012, 10:54 PM   #59
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Default Re: 4 stroke HEI Conversion

I had mine running good in the garage and around the yard but took it out to our first rally this past weekend and started having trouble. Ran good at idle and low speed but at other times would try to flood out. Not sure what my problem is, just doesn't have power. I plan on working on it tomorrow.
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Old 04-09-2012, 11:18 PM   #60
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Default Re: 4 stroke HEI Conversion

Thanks for posting richard3529, please keep us posted on what you find out tomorrow. I am wanting to get mine running also.
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