Project

TROUBADOUR · 10-04-2011, 01:35 AM

And here's the EZGO . Engine is in 2 boxes --- has a broken piston skirt. Not sure if I'm going to get this one fixed up or part it out. Is there much call for Marathon parts?
Almost zero rust on either cart ... just a few small patches of surface rust -- nothing structural.

TROUBADOUR · 10-04-2011, 03:32 PM

Today I replaced the spark plug with a proper new NGK. Turned the engine over and got no spark. :-( Since I am simply jumping the ignition switch (no key yet) could that have something to do with not getting spark at the plug? Or, since the engine is turning can I assume the spark should be there?
How can I check the coil? I looked at it and there are 3 wires connected to it from the wiring harness --- orange, red and black. Am I missing something? Next test to perform?

TROUBADOUR · 10-05-2011, 07:46 PM

Raining too hard most of the day to get much done on the G2. I did a quick test of the compression and it is about 105 --- I think that is adequate, isn't it?
Still looking for advice on how to test the coil and igniter --- that seems to be the best place to look for answers to a "no spark" condition, isn't it?

Mike Mac · 10-05-2011, 08:00 PM

105 is low for compression, should be around 170 ish. I took my coil and igniter to the Yamaha shop, they tested the coil, said it was working at that particular moment. Said there is no test for igniter. If all other parts test good, then it is suspected the igniter is bad.

TROUBADOUR · 10-05-2011, 09:17 PM

Thanks, Mike. Closest Yamaha shop around here is Wentachee -- about 140 miles. Unless I go to Canada -- probably one withing 50 miles or so. But I'll see about pulling the parts out of my running G2 (I sure hate to mess with a running rig!) and switch them out temporarily.

Mike Mac · 10-05-2011, 09:49 PM

one part at a time. Good way ta go!

Another thing, compression may come up after it runs a bit. So wouldn't consider it a problem yet.

Are you making it turn over by pushing the accelerator pedal? Pedal switch triggers ignition as well as starter. I think.

TROUBADOUR · 10-05-2011, 10:02 PM

I have jumped the starter switch (the lights come on) and then push the pedal. But I've been thinking it over and don't believe I had the throttle all the way down/open ... and, if I remember correctly, that will give a false compression reading.

Mike Mac · 10-05-2011, 10:15 PM

Your correct on the WOT/compression theory. But I'm thinking about the ignition not being hot. So, it turns over when you push the throttle, right?

TROUBADOUR · 10-05-2011, 11:37 PM

Yes -- turns over very strongly (new battery, of course). No unusual sounds, no grinding, no dragging. Just doesn't fire. I haven't begun to check the fuel lines yet. I wanted to get spark before I move on to the next thing -- if I jump around from one system to another I'm afraid I'll get lost and forget where I am. My memory is not what is used to be.

Mike Mac · 10-05-2011, 11:48 PM

Your doin it right. Just tryin to sum up the situation and stay ahead of you.

10-04-2011, 03:32 PM	#12
TROUBADOUR Gone Wild Join Date: Jun 2009 Location: Oroville, WA --about 7 miles south of Canada. Posts: 1,233	Re: Project Today I replaced the spark plug with a proper new NGK. Turned the engine over and got no spark. :-( Since I am simply jumping the ignition switch (no key yet) could that have something to do with not getting spark at the plug? Or, since the engine is turning can I assume the spark should be there? How can I check the coil? I looked at it and there are 3 wires connected to it from the wiring harness --- orange, red and black. Am I missing something? Next test to perform?

10-05-2011, 07:46 PM	#13
TROUBADOUR Gone Wild Join Date: Jun 2009 Location: Oroville, WA --about 7 miles south of Canada. Posts: 1,233	Re: Project Raining too hard most of the day to get much done on the G2. I did a quick test of the compression and it is about 105 --- I think that is adequate, isn't it? Still looking for advice on how to test the coil and igniter --- that seems to be the best place to look for answers to a "no spark" condition, isn't it?

10-05-2011, 08:00 PM	#14
Mike Mac G8 Specialist Join Date: Jun 2009 Location: Phoenix Posts: 7,799	Re: Project 105 is low for compression, should be around 170 ish. I took my coil and igniter to the Yamaha shop, they tested the coil, said it was working at that particular moment. Said there is no test for igniter. If all other parts test good, then it is suspected the igniter is bad.

10-05-2011, 09:17 PM	#15
TROUBADOUR Gone Wild Join Date: Jun 2009 Location: Oroville, WA --about 7 miles south of Canada. Posts: 1,233	Re: Project Thanks, Mike. Closest Yamaha shop around here is Wentachee -- about 140 miles. Unless I go to Canada -- probably one withing 50 miles or so. But I'll see about pulling the parts out of my running G2 (I sure hate to mess with a running rig!) and switch them out temporarily.

10-05-2011, 09:49 PM	#16
Mike Mac G8 Specialist Join Date: Jun 2009 Location: Phoenix Posts: 7,799	Re: Project one part at a time. Good way ta go! Another thing, compression may come up after it runs a bit. So wouldn't consider it a problem yet. Are you making it turn over by pushing the accelerator pedal? Pedal switch triggers ignition as well as starter. I think.

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

10-05-2011, 10:02 PM	#17
TROUBADOUR Gone Wild Join Date: Jun 2009 Location: Oroville, WA --about 7 miles south of Canada. Posts: 1,233	Re: Project I have jumped the starter switch (the lights come on) and then push the pedal. But I've been thinking it over and don't believe I had the throttle all the way down/open ... and, if I remember correctly, that will give a false compression reading.

10-05-2011, 10:15 PM	#18
Mike Mac G8 Specialist Join Date: Jun 2009 Location: Phoenix Posts: 7,799	Re: Project Your correct on the WOT/compression theory. But I'm thinking about the ignition not being hot. So, it turns over when you push the throttle, right?

10-05-2011, 11:37 PM	#19
TROUBADOUR Gone Wild Join Date: Jun 2009 Location: Oroville, WA --about 7 miles south of Canada. Posts: 1,233	Re: Project Yes -- turns over very strongly (new battery, of course). No unusual sounds, no grinding, no dragging. Just doesn't fire. I haven't begun to check the fuel lines yet. I wanted to get spark before I move on to the next thing -- if I jump around from one system to another I'm afraid I'll get lost and forget where I am. My memory is not what is used to be.

10-05-2011, 11:48 PM	#20
Mike Mac G8 Specialist Join Date: Jun 2009 Location: Phoenix Posts: 7,799	Re: Project Your doin it right. Just tryin to sum up the situation and stay ahead of you.

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

Similar Threads
Thread	Forum
My first g1 project..	Gas Yamaha
My new project,	Lifted Golf Carts
new project	Gas EZGO
'83 Ez Go Project	Gas EZGO
95 CC project in So Cal	Golf Carts and Parts