Love the banter! Good to see some passion
Let me jump on this discussion, because I have a similar problem: Cold start, good, but engine surges after 15 seconds.
Warm start-up is a no-go without some 'encouragement' from lifting the pressure plate manually or spraying ether into the airbox. Problem: Lean mix (confirmed by plate not raising and color of the exhaust pipe).
Here's all the things I have done so far:
- New Fuel Accumulator
- Checked ignition switch
- Fixed excessive play in distributor
- New fuel filter
- New fuel pump
- Emptied and checked fuel tank (clean as a whistle)
- Checked cylinder bolts
- Valve adjustment done
- Timing done
- Air filter checked
- Spark plugs checked (look good)
- Swapped WUR with another (may also be defective)
- Fuel pressures checked and ok
- Airbox checked for leaks and ok
- Rebuilt CDI Unit and installed.
Next on my list:
- Confirm correct distributor for engine (not original to car)
- Rebuild old WUR and install
- Install a check valve in fuel pump (may not have one)
- Check the fuel plunger in fuel distributor for movement
- Pressure test fuel again
Good plan?