I’ve got something I’d like to add to my credentials. Recently, I’ve diagnosed and repaired a few electrical problems with my motorcycle, a 2005 Honda Shadow Aero.
About a year and a half ago, I had to rely on my motorcycle as my only transportation because I was in the process of moving and I loaned my car to someone who agreed to move it for me. Unfortunately, I found myself in South Florida during a major tropical storm, and had to ride to work in a heavy downpour several days in a row. Rain got into parts of the motorcycle that are normally dry, and my torn signals stopped working.
I got my hands on a circuit tester (the simple kind with a light), and figured out it wasn’t the bulbs or a fuse. I opened up the switch, and it was pretty wet in there, so I took the switch apart and borrowed my friend’s hair dryer. After everything was dry, I reassembled the switch, and viola, it worked again.
I was pretty impressed with myself until my headlight stopped working. I was blowing fuses on a regular basis. I took it to a shop, and told them I had recently messed with the turn signal switch. They said they did some diagnostic work, including checked the turn signal switch, and they couldn’t find anything wrong with it. I didn’t have much confidence in this shop because of the impression I got from the service writer. He was a shady character who told me they would get to work right away on the bike, but a week later, they hadn’t even looked at it yet.
When I got the bike home, I took the turn signal switch apart again to make sure they put it back together correctly. That’s when I discovered my mistake. I had routed a wire in front of a bracket instead of behind it, and the turn signal switch was cutting into that wire. The short was blowing the headlight fuse just about every time I signaled a right turn. I repaired the wire and routed it correctly, and that fixed the problem. I was the cause of the problem, but again, I was pretty impressed with myself anyway. Evidently, I was better at this than a so-called Honda certified technician! This isn’t the first time I’ve discovered I know my bike better than a certified Honda tech, but that’s another story.
Fast forward to a month ago, and I had a starting problem with the bike. I would press the start button, and nothing would happen except the headlight would dim. However, I was able to push start the bike to get it home. Being able to push start the bike allowed me to procrastinate on the repair, and I continued to ride the bike to work whenever weather permitted.
Eventually, I got a chance to work on the bike. I checked the wiring between the start button and the starter, including the relays housed in the headlight, and everything looked fine. I started playing with the starter button, and discovered that if I played with it long enough, the bike would start. I thought about replacing the button and its inner workings, but money was tight, so I took it apart, cleaned the parts and contacts, and bent the contacts so they would come into better contact with the right parts of the switch. Then I put everything back together. Viola! It started just fine, only now the switch was sticking. I had cleaned all the lubrication of the parts of the switch.
I looked around for an appropriate lubricant, and even went to the hardware store and auto parts store looking for the right product, but I couldn’t find anything that looked like the right product, so I bought a can of WD-40, took the switch apart, sprayed the parts, and put everything back together. It’s worked fine since.
It’s funny. I didn’t do any real electrical troubleshooting this time. I simply played with things that I though would be logical to check, and it led me to the problem. Thank goodness it’s a simple machine.