77D assessment.

I think I found my bad connections. IMG_6163.jpegIMG_6164.jpeg However this splice is perplexing. R/Y to I think it’s Purple.image.jpg
 
I think it's blue. That would be tail light and instrument lights. The R/Y would be power out of the main switch to the headlight on-off switch.

77Ign.Switch.jpg
 
It was a little perplexing because my voltage was good in the bucket coming off the switch but had the drop at the coils. I did notice it actually dropped slowly from 11.8 to 10.6. Something was pulling it down slowly. AFIK there would only be one thing causing that and I confirmed it when I touched the coils. The left one was fine but the right one was getting warm. I have a few replacements lying around somewhere so that’s my next check.
 
Yes, when a points set is closed, it's coil will be charging up for the next spark and can get hot if left sitting like this too long. That's why it's not a good idea to leave the key on for long periods of time without the motor running. There's a very good chance at least one set of points is going to be closed and it's coil could heat up to the point of burning itself out.
 
Took a LOT of flushing but Mytvac to the rescue! Brakes will throw you over the handlebars now. I said I wasn’t going to do anything to this bike right now but one things leads into another. I caught myself cleaning surface rust off the back fender. I just keep telling myself “ No strip and paint, No strip and paint”. Lol
 
A general question, seeing as how this MC looks like it leaked before(blistered control paint) I’m wondering if these MC’s can be prone to leaking? I tucked a rag under it just in case and I’ll look at it in the morning but The rubber gasket is suspect in my book.
 
Old, dried brake fluid forms a "crust" around the lid sealing surface. That often dimples or "dents" that sealing lip on the diaphragm. I often get some minor seeping from the lid after cleaning the crust off but it usually seals up eventually.
 
Back
Top