4 cycle ignition problem

bdoll · 11-20-2009, 07:14 PM

92 4 cycle quit running suddenly. Would crank over fine but not start and would continue cranking after dropping pedal. No spark at plug during this. Assumed stuck solenoid and replaced but still have the same problem with new solenoid. Key switch and pedal switch operating correctly. The only way to get it to stop cranking is to disconnect the wire leading from the side of the solenoid to the coil, this drops the solenoid and it stays dropped. Almost as if the solenoid is being held closed by feedback from the coil. Any way to test coil for correct resistance? Any other ideas?

roady89 · 11-20-2009, 07:52 PM

Welcome to BGW

Testing an ezgo 4 cycle ignition coil

With your meter set on ohms, measure the resistance between both primary wire terminals and between the secondary wires.
Normal reading would be: Primary (+ and -): 1.87 - 2.53 and Secondary: 10.8 - 14.6K ohms.

mikesmotortoys · 11-20-2009, 08:17 PM

Check for a broken ground UNDER the starter solenoid area below the frame. Also if the grounds are still hooked up on the solenoid - there are a few. The solenoid has nothng to do with the spark. If not a ground, then look at the wire connector just short of the coil, make sure that theconnection is still good, it will be a white square shaped connector - these go bad from time to time...

crank the engine and push / pull / squeeze this connector to see if you get a spark.

There's more to see, but try these first

bdoll · 11-20-2009, 08:54 PM

I am getting 5 ohms on the primary side of the coil and nothing (Open Line) on the secondary side (plug wires). Checked grounds at solenoid, only see one and it grounds to the frame. I realize that normally solenoid has nothing to do with spark but seems as if these two faults are related since they happened at the same time and the run on condition began with the loss of spark. Weird unrelated stuff happening all at once usually leads to ground trouble but they all seem fine.

the_swede · 11-21-2009, 09:22 AM

water in the pedal switch

bdoll · 11-21-2009, 09:30 AM

As a matter of fact, it was going through a small puddle when it quit. I'll check it out. Thanks.

bdoll · 11-21-2009, 01:05 PM

Not the pedal switch, bypassed it completely with same result. Coil resistance is still about 5-8 ohms with no spark. Can't imagine why solenoid is staying closed. Bad coil or ignitor shouldn't affect the operation of the solenoid I would think. Both problems must be related.

bdoll · 11-21-2009, 02:36 PM

Fixed. Bad ground from ignitor, broken inside the insulation. Thanks for the help.

11-20-2009, 07:14 PM	#1
bdoll Not Yet Wild Join Date: Nov 2009 Posts: 5	4 cycle ignition problem 92 4 cycle quit running suddenly. Would crank over fine but not start and would continue cranking after dropping pedal. No spark at plug during this. Assumed stuck solenoid and replaced but still have the same problem with new solenoid. Key switch and pedal switch operating correctly. The only way to get it to stop cranking is to disconnect the wire leading from the side of the solenoid to the coil, this drops the solenoid and it stays dropped. Almost as if the solenoid is being held closed by feedback from the coil. Any way to test coil for correct resistance? Any other ideas?
bdoll Not Yet Wild Join Date: Nov 2009 Posts: 5

11-20-2009, 07:52 PM	#2
roady89 nimda Join Date: Jun 2007 Posts: 13,022	Re: 4 cycle ignition problem Welcome to BGW Testing an ezgo 4 cycle ignition coil With your meter set on ohms, measure the resistance between both primary wire terminals and between the secondary wires. Normal reading would be: Primary (+ and -): 1.87 - 2.53 and Secondary: 10.8 - 14.6K ohms.
roady89 nimda Join Date: Jun 2007 Posts: 13,022

11-20-2009, 08:17 PM	#3
mikesmotortoys Gone Wild Join Date: Mar 2008 Location: Rockwall, Texas (Dallas / Ft. Worth) Posts: 7,077	Re: 4 cycle ignition problem Check for a broken ground UNDER the starter solenoid area below the frame. Also if the grounds are still hooked up on the solenoid - there are a few. The solenoid has nothng to do with the spark. If not a ground, then look at the wire connector just short of the coil, make sure that theconnection is still good, it will be a white square shaped connector - these go bad from time to time... crank the engine and push / pull / squeeze this connector to see if you get a spark. There's more to see, but try these first
	www.MIKESMOTORTOYS.com www.EZGOPARTSONLINE.com Factory EZGO - Bad Boy Buggy - Dixie Chopper Mowers

11-20-2009, 08:54 PM	#4
bdoll Not Yet Wild Join Date: Nov 2009 Posts: 5	Re: 4 cycle ignition problem I am getting 5 ohms on the primary side of the coil and nothing (Open Line) on the secondary side (plug wires). Checked grounds at solenoid, only see one and it grounds to the frame. I realize that normally solenoid has nothing to do with spark but seems as if these two faults are related since they happened at the same time and the run on condition began with the loss of spark. Weird unrelated stuff happening all at once usually leads to ground trouble but they all seem fine.
bdoll Not Yet Wild Join Date: Nov 2009 Posts: 5

11-21-2009, 09:22 AM	#5
the_swede Not Yet Wild Join Date: Jul 2009 Posts: 4	Re: 4 cycle ignition problem water in the pedal switch
the_swede Not Yet Wild Join Date: Jul 2009 Posts: 4

Today
BGW	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

11-21-2009, 09:30 AM	#6
bdoll Not Yet Wild Join Date: Nov 2009 Posts: 5	Re: 4 cycle ignition problem As a matter of fact, it was going through a small puddle when it quit. I'll check it out. Thanks.
bdoll Not Yet Wild Join Date: Nov 2009 Posts: 5

11-21-2009, 01:05 PM	#7
bdoll Not Yet Wild Join Date: Nov 2009 Posts: 5	Re: 4 cycle ignition problem Not the pedal switch, bypassed it completely with same result. Coil resistance is still about 5-8 ohms with no spark. Can't imagine why solenoid is staying closed. Bad coil or ignitor shouldn't affect the operation of the solenoid I would think. Both problems must be related.
bdoll Not Yet Wild Join Date: Nov 2009 Posts: 5

11-21-2009, 02:36 PM	#8
bdoll Not Yet Wild Join Date: Nov 2009 Posts: 5	Re: 4 cycle ignition problem Fixed. Bad ground from ignitor, broken inside the insulation. Thanks for the help.
bdoll Not Yet Wild Join Date: Nov 2009 Posts: 5

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Forum
Harley Ignition Problem...Help	Gas Harley Davidson
ignition problem in club car?	Gas Club Car
ignition problem	Gas EZGO
starting problem with 1989 EZGO 2-cycle	Gas EZGO
Briggs 18 ignition problem	Big Block Talk!