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Author Topic: Am I the Pontius Pilate of this CX500?  (Read 11539 times)

Offline Odontologist

  • Posts: 101
  • Umina Beach, Australia....Where does that part go?
Re: Am I the Pontius Pilate of this CX500?
« Reply #140 on: Oct 07, 2018, 18:45:25 »
These are pretty bright. I didn't make them.
Run out of zip ties? Dental floss is an excellent alternative.

1982 Honda CX500 Roadster build

Offline Odontologist

  • Posts: 101
  • Umina Beach, Australia....Where does that part go?
Re: Am I the Pontius Pilate of this CX500?
« Reply #141 on: Nov 19, 2018, 04:27:40 »
Been busy doing other things....like paid work. But I did have one eye on the prize.

ELECTRICS

I've done the whole wiring diagram, but to keep it simple for myself, I've chopped it into easier to digest bits.

IGNITION SYSTEM
Straight out of the 82 CX500 Custom addendum diagram, with mods to to the M-unit.



But first, my great idea of locating the battery box under the rear cowle kissed good bye. Not enough clearance to tyre. When I had the bright idea, the tyre wasn't fitted yet.



Some solder and heat



a bit of heat shrink



battery to starter solenoid



A few more wires and battery box trial fitted under engine.....where it was originally designed for.



The 3 black wires on the negative terminal go to starter motor mount, to M-unit ground which itself grounds the chassis, and to the reg/rec.

Small step for mankind (not very 21st century)....but big step for this man.
Run out of zip ties? Dental floss is an excellent alternative.

1982 Honda CX500 Roadster build

Offline cxman

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  • Posts: 2548
Re: Am I the Pontius Pilate of this CX500?
« Reply #142 on: Nov 19, 2018, 08:12:41 »
did you mean to eliminate a kill switch?
1978 CX650 Super Deluxe
1979 XS1100 Special
1974 xl350
1983 cx650 Custom
1973 cb750
1980 cb750
1981 cb650
1982 cb900 c
1974 kawasaki 350 bighorn
1983 GL1100 aspy full dress
1983 GL1100 Nekid
and a bunch of others

Offline Odontologist

  • Posts: 101
  • Umina Beach, Australia....Where does that part go?
Re: Am I the Pontius Pilate of this CX500?
« Reply #143 on: Nov 19, 2018, 16:13:54 »
On left side of M-unit theres a "start" input from a dedicated control button. Acts as kill switch I believe.
Run out of zip ties? Dental floss is an excellent alternative.

1982 Honda CX500 Roadster build

Offline Sonreir

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Re: Am I the Pontius Pilate of this CX500?
« Reply #144 on: Nov 19, 2018, 16:20:28 »
Yes. If you hold down the start button with an M-Unit it will kill the engine.

Also, that wire you have leading from the M-Unit Ignition output back to the ignition switch and LOCK input: You're going to want to remove that. Either M-Unit will complain or it will keep you from turning the bike off.
Sparck Moto - http://www.sparckmoto.com

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Offline Odontologist

  • Posts: 101
  • Umina Beach, Australia....Where does that part go?
Re: Am I the Pontius Pilate of this CX500?
« Reply #145 on: Nov 19, 2018, 18:30:58 »
Thanks Sonreir. I'm  not sure why I put it there.
Run out of zip ties? Dental floss is an excellent alternative.

1982 Honda CX500 Roadster build

Offline Odontologist

  • Posts: 101
  • Umina Beach, Australia....Where does that part go?
Re: Am I the Pontius Pilate of this CX500?
« Reply #146 on: Nov 20, 2018, 02:08:30 »
For completeness and to prevent others doing similar, I have removed the wire from the LOCK input on the M-unit going to the IGNITION output (dotted line),
and I have added the kill switch (in green oval) to show the input to the M-unit. A button held down will switch off ignition.

Thanks to CXman and Sonreir.


Run out of zip ties? Dental floss is an excellent alternative.

1982 Honda CX500 Roadster build

Offline pidjones

  • Posts: 553
Re: Am I the Pontius Pilate of this CX500?
« Reply #147 on: Nov 20, 2018, 08:12:34 »
Just a drawing thing, but shouldn't there be a junction dot on the feed to the coils? Also, just to make sure, there should be a good ground for the spark units. When running, probably the most importand ground.
« Last Edit: Nov 20, 2018, 08:15:23 by pidjones »
"Love 'em all.... Let God sort 'em out!"

Offline Odontologist

  • Posts: 101
  • Umina Beach, Australia....Where does that part go?
Re: Am I the Pontius Pilate of this CX500?
« Reply #148 on: Nov 20, 2018, 17:03:32 »
pidjones....you are right about the grounding omission ..... The spark units show a green wire which should then go to ground. I did not show that.

Not too sure about the feed junctions thing....straight out of the factory manual wiring diagram.

« Last Edit: Nov 20, 2018, 17:42:06 by Odontologist »
Run out of zip ties? Dental floss is an excellent alternative.

1982 Honda CX500 Roadster build

Offline Odontologist

  • Posts: 101
  • Umina Beach, Australia....Where does that part go?
Re: Am I the Pontius Pilate of this CX500?
« Reply #149 on: Nov 25, 2018, 02:08:24 »
Ignition and Charging wiring - continued

New connectors to reg/rec soldered on. My soldering is improving - from monumental glubular disaters to acceptable. Pays to practice.



Red to red....and black to black. Simples.



New connectors for stator wires.





These connectors come with a rubber bung that weather seals the back of the connector. These need to go on wire before soldering connector...Doink!

Too late. I don't want to cut yellow cables any shorter, so I'll make a cut in the bung and hook them onto wire, and seal with a little silicone. Trap for not-so-young players.

Piano piano si va lontano..............
Run out of zip ties? Dental floss is an excellent alternative.

1982 Honda CX500 Roadster build