2 stroke ezgo problem

boondocker · 02-25-2013, 09:17 PM

I am working on 2pg robins motor. Completed top rebuild good compression. The plug will fire out of block but didn't seem to fire under compression. Pulled plug, put dummy plug in block and only get intermittent spark. Any ideas? New battery.

1989Marathon · 02-25-2013, 09:23 PM

What do you mean 'dummy plug'?

boondocker · 02-25-2013, 09:30 PM

I screwed in plug that was not connected and tested fire from connected plug while grounded to muffler. It throws good spark while not under compression, motor spinning faster, but with when under compression and spinning slower it infrequently sparks and not as strong. Motor seems to be spinning fast enough to start but it's not. I can put booster on and it will fire right up and runs good.

pachanga90 · 02-25-2013, 09:37 PM

I would test the battery and check all your connections.You may have bad grounds,causing the ignition to be intermittent,then a weak-battery on top of it,just makes it worse.Hope this helps.

1989Marathon · 02-25-2013, 09:37 PM

What kind of battery is in it? Ratings?

boondocker · 02-25-2013, 09:44 PM

New battery, 650 ca I believe. Replaced old battery because of same issue. Gonna go through all the connections in the morning, see if that helps. My first time messing with golf cart, Lol... using it as father son build and trying to walk 12yr old through while figuring it out myself. Thanks for help.

Dave Box · 02-26-2013, 08:06 AM

Grounding is a known issue with the 2PG. If you follow the battery negative to the chassis you will see the ground point. Remove the nut and clean the chassis to bare metal, also clean the cable lugs. It is important that there is a ground strap from this point to the engine block or the engine will try to ground anyway it can, like the choke cable. With the spark plug out the engine requires a lot less amps to turn over so the effects of a poor ground are minimized.

Dave

boondocker · 02-26-2013, 11:09 AM

Thanks for help fellows. Cleaned connections. Guy who had owned before me ran small wire from battery to frame. Changed that and cleaned everything else fires right up. Ready to ride. We got about four inches of rain last night do should be fun... thanks again

02-25-2013, 09:17 PM	#1
boondocker Not Yet Wild Join Date: Mar 2011 Posts: 7	2 stroke ezgo problem I am working on 2pg robins motor. Completed top rebuild good compression. The plug will fire out of block but didn't seem to fire under compression. Pulled plug, put dummy plug in block and only get intermittent spark. Any ideas? New battery.
boondocker Not Yet Wild Join Date: Mar 2011 Posts: 7

02-25-2013, 09:23 PM	#2
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: 2 stroke ezgo problem What do you mean 'dummy plug'?
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

02-25-2013, 09:30 PM	#3
boondocker Not Yet Wild Join Date: Mar 2011 Posts: 7	Re: 2 stroke ezgo problem I screwed in plug that was not connected and tested fire from connected plug while grounded to muffler. It throws good spark while not under compression, motor spinning faster, but with when under compression and spinning slower it infrequently sparks and not as strong. Motor seems to be spinning fast enough to start but it's not. I can put booster on and it will fire right up and runs good.
boondocker Not Yet Wild Join Date: Mar 2011 Posts: 7

02-25-2013, 09:37 PM	#4
pachanga90 I Refuse To Get Stuck!!! Join Date: Jun 2010 Location: Hilton,NY Posts: 5,427	Re: 2 stroke ezgo problem I would test the battery and check all your connections.You may have bad grounds,causing the ignition to be intermittent,then a weak-battery on top of it,just makes it worse.Hope this helps.

02-25-2013, 09:37 PM	#5
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: 2 stroke ezgo problem What kind of battery is in it? Ratings?
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

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02-25-2013, 09:44 PM	#6
boondocker Not Yet Wild Join Date: Mar 2011 Posts: 7	Re: 2 stroke ezgo problem New battery, 650 ca I believe. Replaced old battery because of same issue. Gonna go through all the connections in the morning, see if that helps. My first time messing with golf cart, Lol... using it as father son build and trying to walk 12yr old through while figuring it out myself. Thanks for help.
boondocker Not Yet Wild Join Date: Mar 2011 Posts: 7

02-26-2013, 08:06 AM	#7
Dave Box Respect the Cart Join Date: May 2010 Location: Rocky Mount, Virginia Posts: 2,190	Re: 2 stroke ezgo problem Grounding is a known issue with the 2PG. If you follow the battery negative to the chassis you will see the ground point. Remove the nut and clean the chassis to bare metal, also clean the cable lugs. It is important that there is a ground strap from this point to the engine block or the engine will try to ground anyway it can, like the choke cable. With the spark plug out the engine requires a lot less amps to turn over so the effects of a poor ground are minimized. Dave

02-26-2013, 11:09 AM	#8
boondocker Not Yet Wild Join Date: Mar 2011 Posts: 7	Re: 2 stroke ezgo problem Thanks for help fellows. Cleaned connections. Guy who had owned before me ran small wire from battery to frame. Changed that and cleaned everything else fires right up. Ready to ride. We got about four inches of rain last night do should be fun... thanks again
boondocker Not Yet Wild Join Date: Mar 2011 Posts: 7

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