Hi.
I have recently been given a eton 40cc jnr with electric start due to it been a non runner. ie no spark.
I have done a bit of tracing and eliminating by bypassing the tether switch and the handlebar switch.
I did find the ignition switch has power going in but nothing coming out in either position.
So i sent a feed down 2 of the wire and have managed to power most things up.
I am getting power to the cdi when in the start position. the starter clicks but does not turn, I assume it is mabey stuck from been stood ar mabey just broken.
The strange thing is that the only time I get a spark is when I press the start button and the starter solonoid clicks I get 1 spark then nothing untill I press the button again.
If I pull it by the pull start cord I get no spark at all?
So I am a little stuck as what to try next, any ideas of any type will be gratly appreciated. cheers
Graham

 

I have never seen one of these, but there are published wiring diagrams. Just to see if I have a diagram anything like your quad:

1) How many wires on the CDI and what are their colors?

2) DO you have the remote control module?

Some more questions:

A) How did you bypass the tether and handlebar switches?

B) Have you tried jumping across the starter relay screw terminals? Does the starter motor turn or just stall?

I think you have two problems that are unrelated. One is the fact that your starter isn't turning the motor. The other is no spark - except one when the starter is first engaged. I suggest working on getting the starter to turn first. Then tackle the no spark problem. The reason is that a working starter motor turns at a more or less constant speed which makes some of the ignition tests using a meter more repeatable (and therefore easier to diagnose). Also, it is really hard to hold two probes in place measuring voltages and pull starting at the same time .

 

Hi Lynn.

There are 4 wires to the cdi.
yes I do have the remote module.
I have bypassed both switches by linking the wire straight together so no interuptions.
I have stripped it a little further tonight and the little wheel that the starter turns was seized, looks tho water has been inside.
I have freed it off but not reassembled it all yet. The starter spins fine when away from the seized part. altho it only spins for a couple of seconds before the relay stops, is this usual?
Will get it assembled tomorrow and try again, I'm wondering if its possible water may have found its way to the stator plate as the plastic case around that area is cracked.
May have a look towards that tomorrow.
Many thanks for your reply, the help is very much appreciated.

 

My comments embedded in blue:

 

Hi ,
Got it all reassembled and the starter is working as it should, unplugged every plug on the harness and the starter turns for as long as your finger is on the button now but still only getting that first spark.
I fitted a new battery to the remote stop fob just to rule that out.
I have also removed the drive system for the chain so I can now see the stator trigger.
I will have a bit more of a play tomorrow but I can now see every bit of wiring on the bike.
Cheers again!

 

I don't think you reported the colors of the wires to the CDI as asked. Are they: Black, White/Black, Red/Black and White/Blue?

How many wires coming out of your remote module? What are their colors?

How many wires coming out of your stator? What are their colors?

This sounds like a lot of trivial questions I know, but these are really important. I'm trying to determine if the wiring diagram I have is accurate, and if it isn't, I'm trying to forge together how your quad is actually wired. Important: When reporting wire colors, be absolutely sure to report the wire colors on the *wire harness* side of any connector. For example, your stator has pig tail leads emerging from within the engine to a connector(s). I don't care about those wires. The color of the wires in the mating connector on the wiring harness are the important ones. Because, whatever color the wire is that enters the taped up mysterious unknown wire harness, it must emerge somewhere, and wherever it emerges it will still be the same color wire . That's a big clue to me. I hope this all makes sense... .

The plan still is to map out your wiring (unless it already matches the published stuff - which unfortunately it often doesn't). Then zero in on your problem. But I need accurate (and complete) data from you to do this.

 

i have a eton 40viper jr no spark has remote and electric start and pull rope start has no spark checked power too every thing all has power but no hot power too coil when testing coil both show ground no hot need help

 

Hey Mike,

I lost power to my house yesterday evening and was unable to respond. So I'm now in catchup mode.

I have never touched an eton quad in my life, so I'm basing everything in my response on published wiring diagrams and general electronics knowledge. But I don't think that will be a problem...

How many pins on your CDI? And what are the wire colors? I want to compare this against the published wiring diagram to see how close to the truth we are .

Do you have a tether pull cord engine kill feature?

When you said you had power to "everything" did you use a meter or a test light? What "things" did you measure exactly? Do you own a meter?

Just a quick warning: Eton ignition wiring is quite a bit different than the generic chinese quads, so be careful about reading other posts about those much more common quads and then applying them to etons. They will not apply.

You'll need a meter going forward, so get prepared ...