I haven’t been able to start my 83 nighthawk 550 since I brought it out from winter storage. The first thing I tested was for a fat blue spark from my spark plugs while holding them against the engine block for grounding. There was no spark. Since then I have carefully gone through Clymers and tested the following:
1. Replaced Spark Plugs
2. Replaced with new battery
3. Checked for continuity in spark plug wires
4. Ignition Coils: Checked for proper resistance in primary and secondary leads (~2.8 Ohm)
5. Spark Plug Caps: Checked for proper resistance (~5 kOhm)
6. Pulse Generator: Checked for proper resistance in both pairs of leads (~330 Ohm)
Finally, I tested again for the fat blue spark and still no dice. Clymers now suggests the Spark Unit is faulty and needs to be replaced. The bike shop charges me 125 bucks for a used one.
Do you guys think I have enough info to make the purchase? Any Suggestions?