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Thanks for all the previous suggestion regarding no spark issues. Hoping for current issue suggestions:

Bike started, rode for 15 minutes, parked, afterward turned off/on fine.
Next Day: No spark, removed relays, replaced relays, started.
Next Day: Spark but doesn't start ----

What I've tried:

I pulled one (new) plug out, while leaving it attached to the plug I ran the starter. It did not have cyclic spark, but once I released the start button, the plug emitted a 'large' blue spark; however, voltmeter shows continuous 12 volts.

Swapped coils and plug wires from '93, no avail.

Starting fluid in intake, no fire.

Gas in spark plug holes, nothing.

When trying to start, without any test procedures in-place, I do smell gas from the exhaust, not overly flooded. The only thing I can think of is that the timing belt is completely off or if there is something like a distributor causing the spark to not be in cycles, but I was thinking this was the function of the coils. Maybe the injectors, but I would think I would get a fire from gas in the spark plug holes.

I see there is a plug on the EMU, can I interface with this for troubleshooting?

Anything would be appreciated as I don't want to take her to the shop.

The fact that the bike is getting fuel and not firing (not even with a starting fluid) suggests that there are no sparks while it is cranking, assuming there is compression. Try plugging another plug into a plug lead, leaving the plug in the engine in place, then cranking the starter and observe for sparks. There should be a repeating spark while the engine turns over.
You say the voltmeter shows a continuous 12V. Where are you measuring it?
After removing and replacing the relay the bike started but didn't the next day. As only the relays were disturbed this suggests the problem is still associated with the relays.

why open a new topic for the same unsolved problem?

G.

http://jpdiag.cwebh.org/JPDiagFAQ.htm
http://jpdiag.cwebh.org/
http://www.ebay.com/itm/111575000878?_t ... EBIDX%3AIT forget these in favor of this set

http://www.lonelec.co.uk/index.php?main ... ucts_id=50

Thanks for the replies, Derek:

There should be a repeating spark while the engine turns over.

There's not. Tried leaving the plug out, attached to plug wire and starting w/ kill switch in run position.
Outcome w/ two different types of brand new plugs: No cyclic spark, only one spark after releasing the start button (probably why it backfired in earlier attempts to start); one odd thing is the voltmeter reads 6v & 12v depending on the plug. I am measuring the voltage on the spark gap and grounding on the bike; the 6 & 12v are constant (they don't fluctuate).

After removing and replacing the relay the bike started but didn't the next day. As only the relays were disturbed this suggests the problem is still associated with the relays.

I saw there are some new 'compatible' relays in other posts (Bosch and others). But in the available new replacement relays, the prongs have different functions according to the schematics provided on the relays themselves. Anyone familiar with using the different relays; must I do rewiring?

Pooh-Bah, I think you offered some relays from Fiat in a previous post - do you have two that you are willing to sell?

I am measuring the voltage on the spark gap and grounding on the bike

You`re measuring the voltage at the spark plug gap? You would measure something between 6.000 and 20.000V if you had spark. Not sure what you`re measuring or better what you intend to verify by measuring this way.

G.

I also tried swapping the ecu's around with same results.

I get a constant 11 & 10.7v from plug wires.

do you have two that you are willing to sell?

I may, let me look this weekend

PM me your snail mail addy, DO NOT post it here

For those that may have similar problem: Took it to the Duc Shop, it was the cam/timing sensor.