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Custom R80 ignition issue

Hi all, I'm new around here but have been browsing for quite some time so I hope you don't mind me jumping in and asking for a little insight on an issue I'm having with getting my Airhead started.

First, a little background. The bike has sat for about a year and never has had an issue starting apart from the battery being flat. I connected a jump starter to it and had it running but everytime I disconnected it it cut out. So I tried this a few times and kept it running with the jump starter attached for more than few minutes reving a little here and there to see if it would not cut out.

The bike is a custom build and has been made into a bobber, so it has a somewhat unusual layout. For example, to change the battery I have to take one of the exhausts off as it sits in a space inbetween both exhausts. Its unusual, but not an issue as long as the battery doesn't need changing.

Because it has sat for a while (House renovations got in the way of ridining for a while) I needed to change the battery and therefore remove the left exhaust. Once the battery was changed and the exhaust all fitted back together the bike had power, everything lit up. All lights and horn worked, but the bike wouldn't start.

I changed the spark plugs and still no start. So I checked to see if I had spark with the brand new plugs both grounded to the fins and neither side was sparking. The bike runs a dynatek green, dual coil. So with this in mind and spark not going to either plug I changed the coil for the same model but still had no spark.

I noticed that the starter button was working but not springing back, so I wondered if the fault could lie there, but I've just changed this and I still don't have spark. There's never been a kill switch on the bike so that can't be the issue

The bike has an electronic starting kit by Enduralast and that's the last thing on my list to replace (and probably the most expensive) however, I know very little about mechanics and electronics so I'm just muddling through and quite enjoying it apart from the frustrations of failure! The engine is spinning on start but not sparking, does this mean that with what has been replaced, that the electronic ignition is working? (I'm not sure if the initial spin is from the ignition system or not, please forgive my ignorance) or is it probably fried and I need to replace parts of it or is there anything else I should be looking for? As I say the bike was faultless before taking the exhaust off and I've checked all grounding and loose wires etc.

A link to view current starting situation can be viewed: https://we.tl/t-s1pDzLzgeq

Thanks for yoru help on this and sorry for the long first post
David
 

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it is hard to diagnose a problem on the forum and not having the bike at hand. So I won't try to diagnose but give a thought or two. The starter button has no effect on the spark production.
Go back over each step of previous work and check for issues.
When you checked for spark did you have the spark plugs well grounded? Not sure how robust the EME system is but on the BMW original equipment bikes you could pop the ignition control module by not properly grounding the spark plugs when testing for spark.

Frankly I would give EME a call and ask them if they have troubleshooting instructions for the ignition system. Good luck, St.
 
Thanks for the advice Steven. The Enduralast system seems to have a good reputation form what I can tell. It seems pretty robust, but something has been disturbed when I removed the exhast and replaced it. So I'm going back step by step. I'm going to take a look at it again this weekend, I've a sneaking suspicion it may be the sensor. But I could be completely wrong! :)
 
Just sayin, David, everything is hanging out there in the weather on your custom bobber; and things look pretty corroded from here in Alabama. Might try some sandpaper or steel wool on the many connections!!! Got any Fuses that need Inspecting???
Cheers, HSV-Phil
 
Sandpaper wears down the contacts; steel wool leaves conductive debris.
How 'bout a nylon scrub pad...
(side note: DeOxIt also leaves some residue)
 
I'm begining to think that this may the issue. Just as its sat a while and was working well but without charge. There's been a disturbance and I feel the contacts may need looking at afterall
 
.22 cal firearm cleaning brass brush, chucked up in a cordless drill works well for a quick cleaning/polishing on exposed contacts. For internal contact, tightly rolled and chucked up Emory cloth in a drill works but will be more aggressive. Light oil can calm down the aggressiveness. Be sure to flush contacts after either method.
OM
 
.22 cal firearm cleaning brass brush, chucked up in a cordless drill works well for a quick cleaning/polishing on exposed contacts. For internal contact, tightly rolled and chucked up Emory cloth in a drill works but will be more aggressive. Light oil can calm down the aggressiveness. Be sure to flush contacts after either method.
OM
I may struggle for the firearm cleaner in the UK :) But the rest i can definitely do
 
I may struggle for the firearm cleaner in the UK :) But the rest i can definitely do
Nah, try here-



1749833119409.png

Looks like it may be close to you?

OM
 
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