lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Gas EZGO
Gas EZGO Gas EZGO Marathon, Medalist, TXT and RXV.



Post New Thread  Reply
 
Thread Tools Display Modes
Old 12-28-2011, 09:56 PM   #1
kevinbydesign
Not Yet Wild
 
Join Date: Nov 2011
Posts: 17
Default 1984 2-stroke spark cuts out as engine warms up

I have a 1984 ez-go stock 2 cycle golf cart with the 244cc Robin engine.

I have had it for about 4 years. It ran pretty good, but then one day it just seemed like it had a lack of power. I did not really do much to diagnose it, i just installed a top end rebuild kit with a new piston, rings, jug, and seals. I also installed new crank seals and a new fuel pump.

I reinstalled the engine into the golf cart and it ran, but it still lacked power. I put one of those spark tester on it and i noticed that it had good spark for the first 100 yards i drove it and then the spark would become intermittent and miss and the gart would barely move.

I then installed the HEI ignition that i read about in the forums, and the same problem STILL exists. I then replaced the voltage regulator and the solenoid.

It runs good at the very beginning and then the spark misses or goes out.

What could it be? i thought i practically replaced the whole igintion system by switching to HEI ignition.

Could it be the Pulsar? Is this a common problem with that?

thanks
kevinbydesign is offline   Reply With Quote
Alt Today
BGW

Golf car forum Sponsored Links

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum
   
Old 12-28-2011, 10:23 PM   #2
walt-rate
Not Yet Wild
E-Z-GO
 
Join Date: Dec 2011
Location: Nokomis, FL
Posts: 63
Default Re: 1984 2-stroke spark cuts out as engine warms up

when you did the "HEI" did you replace your plug wire? the plug wire mite be shorting out when it heats up, from the muffler being so close to it..
walt-rate is offline   Reply With Quote
Old 12-29-2011, 12:27 AM   #3
jeffrun
Gone Wild
 
Join Date: Apr 2011
Location: Washington State
Posts: 385
Default Re: 1984 2-stroke spark cuts out as engine warms up

When you did the hei conversion, what parts did you install?
jeffrun is offline   Reply With Quote
Old 12-29-2011, 10:11 AM   #4
racin161
Gone Wild
 
Join Date: Feb 2011
Posts: 1,515
Default Re: 1984 2-stroke spark cuts out as engine warms up

Waiting to hear more before we can help
racin161 is offline   Reply With Quote
Old 12-29-2011, 07:21 PM   #5
kevinbydesign
Not Yet Wild
 
Join Date: Nov 2011
Posts: 17
Default Re: 1984 2-stroke spark cuts out as engine warms up

Thanks for the replies.

Yes, i changed the plug wire when i installed HEI.

When i installed HEI, i installed: the new iginition control module, new igintion coil, new plug wire, and new plug. I also installed new wires to wire it up.

This eliminatd the current golf cart coil, iginitor, golf cart spark plug wire, and original golf cart spark plug.

I also noticed that it looks like the pulsar made contact with the flywheel, not that bad of contact, but there are some marks there.

Any ideas?
kevinbydesign is offline   Reply With Quote
Old 12-29-2011, 08:03 PM   #6
walt-rate
Not Yet Wild
E-Z-GO
 
Join Date: Dec 2011
Location: Nokomis, FL
Posts: 63
Default Re: 1984 2-stroke spark cuts out as engine warms up

I'm sorry I'm out of ideas, maybe Dave has some..
walt-rate is offline   Reply With Quote
Old 12-29-2011, 08:07 PM   #7
jeffrun
Gone Wild
 
Join Date: Apr 2011
Location: Washington State
Posts: 385
Default Re: 1984 2-stroke spark cuts out as engine warms up

i was thinking pulsar. You can check the pulsar by measuring the output with a voltmeter. Remove the two pulsar wires from the hei. clip voltmeter leads to these wires.Set the volt meter to 20V AC scale, crank motor and record reading, shoulb be 1-5V AC. If you replace pulsar, set the air gap at .030.HEI also have a thermo shutdown, if they get to hot, make sure it has a good heatsink with thermo grease.
jeffrun is offline   Reply With Quote
Old 12-30-2011, 08:49 AM   #8
Dave Box
Respect the Cart
 
Dave Box's Avatar
E-Z-GO
 
Join Date: May 2010
Location: Rocky Mount, Virginia
Posts: 2,189
Default Re: 1984 2-stroke spark cuts out as engine warms up

The one thing that hasn't been mentioned, and is an issue on EZGO carts, is grounding. I would remove the cables from the ground point and then clean the chassis to bare metal. Also clean the lugs on the wires. There should be three, one from the battery, one to the FR switch and one to the engine block. This last one is important as without it the engine will try to find another ground path like the choke cable. It may be that it is not a heating issue but a vibration deal (100 yards is not long to cause thermal problems).

If this does not help another issue is wire breakage. Sometimes the wires snap right on the crimp and the little rubber shrink wrap holds it on giving a intermittent connection. I would remove each lug, clean it and at the same time give it a gentle tug to see if it falls apart.

My 86 had a similar issue and I found that the grommet in the engine case where the pulsar wires exit had rotted away causing the wires to chaff and make intermittent contact with the block. If you use an ohm meter across the two wires you should see 75 - 140 ohms. Measure each wire with respect to the ground point to ensure neither are shorting out.

Let us know what transpires.

Dave
Dave Box is offline   Reply With Quote
Old 12-30-2011, 05:35 PM   #9
kevinbydesign
Not Yet Wild
 
Join Date: Nov 2011
Posts: 17
Default Re: 1984 2-stroke spark cuts out as engine warms up

Dave,

I checked the ground and it looked good. I was particulary concerned with the one going to the engine. The F&R switch doesn't have anything to do with spark does it? I checked the wires going to the solenoid, because that is where i am getting my power from for my HEI.

Another troubleshooting thing i did that i forgot to mention is that i jacked it up on jackstands after it started missing one time and i tiried wiggling all the wires to see if it would stopped missing and nothing changed. Then i put in the HEI and i replaced all the igintion wires with the exception of the battery terminal wires and the blue&red wire from the pulsar.

I ran the ohm meter across the pulsar and got 151 ohms. Is that too much resistance? What would that mean?

I ordered a new pulsar but it won't be here for a couple of days.

In the mean time i would not mind checking all the wires like you said? can you please give me some more details on what you mean by "lugs"?

Thanks

kevin
kevinbydesign is offline   Reply With Quote
Old 12-30-2011, 10:32 PM   #10
walt-rate
Not Yet Wild
E-Z-GO
 
Join Date: Dec 2011
Location: Nokomis, FL
Posts: 63
Default Re: 1984 2-stroke spark cuts out as engine warms up

"lugs" refers to the metal connector on the end of the wire
walt-rate is offline   Reply With Quote
Reply
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Gas EZGO


Thread Tools
Display Modes


Similar Threads
Thread Forum
spark then no spark 97 4 stroke 2 cycl. Gas EZGO
G16 quits after engine warms up Gas Yamaha
1984 ezgo 2 stroke Gas EZGO
2 stroke engine no spark Gas EZGO
1984 ezgo two stroke Gas EZGO


All times are GMT -5. The time now is 12:22 PM.


Club Car Electric | EZGO Electric | Lifted Golf Carts | Gas EZGO | Used Golf Carts and Parts

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
This Website and forum is the property of Buggiesgonewild.com. No material may be taken or duplicated in part or full without prior written consent of the owners of buggiesgonewild.com. 2006-2017 Buggiesgonewild.com. All rights reserved.