Basic Speedometer Troubleshooting

[George050994_imp]

Good day guys,

A couple of days i introducme myself into the forum and I tried to explain a problem i had with my CB1100 13' speedometer.

I have created this Thread in order to help as much as I can if anyone else encounters the same problem.

So the problem I had with my speedometer was a blank screen on the Fuel, ODD and time stamp screen after reconnecting Both terminals to the motorcycle connections.

There was no terminals loose, nor shortcircuit as I used my tester and I was getting continuity and all. I have encounter shortcircuits with previous bikes but it was nothing like I have ever seen before

What I did to try and resolved this:

1) I clean the electric board with a general circuit cleaner and used a soft paint brush to clean all terminas and circuits

2) I let it dry for 15 minutes and then you can use your mom/partner hair dryer to remove moisture from all terminals ( or maybe you have your own hair dryer I dont judge)

3) Reconnect the terminals and wait for the signal.

My problem was: after cleaning and drying the electric board and installing into the motorcycle it was working when turning on the key swicht, after a couple of hours it didnt work again as I was getting the same blank screen with no info whatsoever and both the rev and speed gauges were not working, Im pretty sure my problem was not turning on my bike as i was just leaving it with Pilots on.

My battery ran out of juice doing all this as my headlight was on all the time, so I fully recommend to remove the headlight fuse below the seat to save some battery while doing this.

After I reinstall the gauges and connect everything again I turned on my bike let it warm up for 1 minute, I took her for a ride and after 5 minutes my speedometer worked again, and has worked since then with no issues at all.

It was such a weird issue but once again when it comes to electrical stuff Im not that tech savy.

Im writing this so if anyone come across this issue again and is trying EVERYTHING to have the board working again let me just tell you to have it connected to the bike again and ride a few minutes and it should be working again.

I have attached pictures for a better description of my problem.

I really hope this helps to any friend in need. Sorry for my gramar English is not my first language.

[dave]

Welcome to the forum George, and thank you for your support. Hopefully we'll be seeing more of you on this forum.

[Lord Popgun]

Well, I am an electronics tech. So is PB and Max and maybe Gone in 60. Maybe they will have some comments too.

You have a LOT of corrosion on the card and the wires in that last pic. Unless you can clean all the pins, etc, you are most likely
going to continue to have problems. You need to throughly clean everything and then I would put a contact protectant
like ACF-50 (expensive) or even CRC 2-26.

That crack in the first pic, or any other cracks is going to let water in and more oxidation and corrosion will occur. Intermittent problems are normal
with corroded pins, etc.

[pdedse]

Georgem, your bio says "Central America"...which country?

[GoldOxide_imp]

George: How close to an ocean are you?

Panama? (also quite humid there too)

[George050994_imp]

Hello guys!
@popgun yes there was a lot of corrosion I forgot to mention those pics were before cleaning it. I don't have pictures after I cleaned it but it was much better.
The main reason why water filtered in is because the previous owner had this "mechanic" who just fill the whole white lower case with cheap glue and left many spaces to the open and of course we have water in. So I used my 8 year old skills and sealed the whole lower case with tape and silicone... I know it sucks but it is what it is. I made sure if I ever caught some rain riding the inside of the speedometer would be dry or at least to have less moisture than before. Then I sealed both the upper and bottom speedometer case with more silicone. Looks like venom from spiderman poop on my meter but hey as long as it works right?

@Pdedse I'm in El Salvador heart of central America, it's really hot here so I was a little scared of having a big air cooled bike. But I used repsol 10w40 and some split lanes always do the work

@GoldOxide I'm not that close I live in the capital, the ocean is at 30 minute from my house.

I'm pretty sure you guys are asking if I live close to the ocean due to the humidity inside but the real reason why there's corrosion inside is because the previous owner didn't care about the crack on the meter and let water got inside of it.

Hopefully this MacGyver repair I performed is enough to have this working at least a couple of years ( fingers crossed)