Topic: Is it the Solenoid?

[w1sa]

Did you clean and check the terminal connector/spade(s) before the meter test?....... Did you retry the starter?.......

If you've done these things and can repeat the tests with the same results several times.....and the starter solenoid still fails to operate as it should... , I can only imagine a loose/intermittent/poor connection/condition (power or ground), somewhere...................I'll give it some more thought tho'

[adr3naline]

So, I've traced my g/r wire now to my clutch, and then into what would be my headlight. I've got continuity between one of the big open ended prong connector (#1 in picture)... but I'm not sure what's supposed to connect to that prong connector (#1). Does anybody else have a CB650 that might know?



My ground connectors were a little corroded inside the black pin connector (#2), so I washed those out with vinegar, brushed up the pins slightly, and I can get continuity through it now. 

The #3 & #4 (headlight) bundles have temporary yellow screw cap connectors for now to be able to diagnose these issues.

I just need to know what #1 is supposed to connect with. Thanks!

[bobth1019]

Did you clean and check the terminal connector/spade(s) before the meter test?....... Did you retry the starter?.......

If you've done these things and can repeat the tests with the same results several times.....and the starter solenoid still fails to operate as it should... , I can only imagine a loose/intermittent/poor connection/condition (power or ground), somewhere...................I'll give it some more thought tho'

A bit of a issue... I cleaned the R/g ground connector and turned the key and smoke from the rectifier...melted it very nicely...at this point I'm thinking replace the harness and take it from there. Maybe not the best approach but for what it will run on ebay not so much. Question is if someone knows does a 1981 cb750c harness interchange with a 1980 cb750c harness? Mine is the 1980. Thanks

[bobth1019]

Did you clean and check the terminal connector/spade(s) before the meter test?....... Did you retry the starter?.......

If you've done these things and can repeat the tests with the same results several times.....and the starter solenoid still fails to operate as it should... , I can only imagine a loose/intermittent/poor connection/condition (power or ground), somewhere...................I'll give it some more thought tho'

A bit of a issue... I cleaned the R/g ground connector and turned the key and smoke from the rectifier...melted it very nicely...at this point I'm thinking replace the harness and take it from there. Maybe not the best approach but for what it will run on ebay not so much. Question is if someone knows does a 1981 cb750c harness interchange with a 1980 cb750c harness? Mine is the 1980. Thanks

Should have been more specific.... the 2 prong silicon rectifier

[w1sa]

I just need to know what #1 is supposed to connect with. Thanks!

If the wire is green as it appears, it is quite likely an original spare ground connector.....could prove useful!

Did you clean and check the terminal connector/spade(s) before the meter test?....... Did you retry the starter?.......

If you've done these things and can repeat the tests with the same results several times.....and the starter solenoid still fails to operate as it should... , I can only imagine a loose/intermittent/poor connection/condition (power or ground), somewhere...................I'll give it some more thought tho'

A bit of a issue... I cleaned the R/g ground connector and turned the key and smoke from the rectifier...melted it very nicely...at this point I'm thinking replace the harness and take it from there. Maybe not the best approach but for what it will run on ebay not so much. Question is if someone knows does a 1981 cb750c harness interchange with a 1980 cb750c harness? Mine is the 1980. Thanks

Should have been more specific.... the 2 prong silicon rectifier

The '80 and '81 harness's carry different part numbers....should be similar, but I don'tknow the specific differences.....can anyone else help here?

Did you check the harness for absolute damage....it might be limited to the silicon rectifier/diode section and/or other repairable points?

[bobth1019]

I just need to know what #1 is supposed to connect with. Thanks!

If the wire is green as it appears, it is quite likely an original spare ground connector.....could prove useful!

Did you clean and check the terminal connector/spade(s) before the meter test?....... Did you retry the starter?.......

If you've done these things and can repeat the tests with the same results several times.....and the starter solenoid still fails to operate as it should... , I can only imagine a loose/intermittent/poor connection/condition (power or ground), somewhere...................I'll give it some more thought tho'

A bit of a issue... I cleaned the R/g ground connector and turned the key and smoke from the rectifier...melted it very nicely...at this point I'm thinking replace the harness and take it from there. Maybe not the best approach but for what it will run on ebay not so much. Question is if someone knows does a 1981 cb750c harness interchange with a 1980 cb750c harness? Mine is the 1980. Thanks

Should have been more specific.... the 2 prong silicon rectifier

The '80 and '81 harness's carry different part numbers....should be similar, but I don'tknow the specific differences.....can anyone else help here?

Did you check the harness for absolute damage....it might be limited to the silicon rectifier/diode section and/or other repairable points?

Thank you.... I saw the unmatching numbers and stuck with an 80 harness. Might be a non-fix but at the rate I'm going a spare doesn't seem like a bad thought. Actually replacing it will give me the chance to really go over connections and make certain they're clean, etc. If it creates more issues I can go back to the other one in any case. We shall see...should get it in a couple days. Thanks again.