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Alright good testing!
You've confirmed got good spark with new plugs. So we can rule out previous plugs as contributing. And we can rule out all electronics. Do not modify anything with harness or electronics.
Now we can assume ALL issues are fuel-related. Givens:
petcock vacuum good
petcock opens OK
float-valves OK
float-bowls fill OK
1. "had to use starter fluid to get it cranked."
- So it didn't start with choke full-on?
- Didn't fire on either cylinder?
- What was ambient air-temperature?
2. "cyn 2 still dead."
- Even with spraying starter-fluid, wouldn't run?
- cold header pipe?
Ok, what does new spark-plugs look like now? Although engine may not have run enough to determine anything by looking at them.
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