1992 Nighthawk – Take 2
Today is spark plug day!
After sitting in a parking lot for 14 years, the Nighthawk’s spark plugs had developed a bit of a vintage look, to say the least. I soaked them in Liquid Wrench penetrating oil for a few days, and now they look good and ready to meet my favorite tool: a two foot wrench and a 18 mm spark plug socket.
The oil bath was definitely a good idea, the plugs are coming out surprisingly easy. I am a little worried about the crusty ports, the penetrating oil knocked a lot of the rust loose and I am not sure how to prevent it from dripping into the engine.
The tip of the first plug doesn’t look so bad (somehow I expected worse) but I wonder if the owner ever changed them or if these are the original plugs. After all, the bike has less than 12,000 miles on the odometer.
The other three plugs are pretty foul. Judging from their black carbon coating, I suspect that the bike was quite unhappy before the previous owner decided to “abandon” it.
So far, we have a (fairly) clean air filter and four unhappy spark plugs.
I bought a new battery but before I try to start the engine, I think I’ll do an oil change and pull the tank off for a carb inspection. Stay tuned.