I'm kinda new around here but I'm working on a 1972 CL450 that's been sitting for about 2 years. Clean carbs, clean tank, new battery, fresh oil - for the most part, I think all the basics are there. I hooked up the battery last night, the headlight and front signals are working just fine(rear fender/lights are off the bike right now), as well as the horn and the starter button works.
As I pushed the starter button to get the bike running, the starter motor turns great - nice and solid but the motor's not sounding like it wants to start at all. My next step was to take off the headlight and see what's up with the wiring - check for anything loose, unplugged, whatever. Everything looked ok except for a couple little "jimmy-rigged" plugs I found...
1) The first one was a ground that comes from the right control through the headlight back to the rear brake switch. I found it on the diagram, no biggie (off ignition switch right in the middle of the page), and according to my Fluke meter it's continuous. What I didn't follow was that there was a red wire plugged into the connection between the 2 black wires that ran out the back of the headlight and was zip tied to the ignition switch section of the main harness. I have no idea what it's supposed to go to, why it would be there (can't find it on the diagram), but for some reason I'm thinking it's a makeshift ground that maybe works with the ignition coil or something leading to the not starting. It has a newer butt end connector on it so it's not factory. No idea on that one.
2) This is the other one that has me confused. Within the headlight there was a green/yellow wire TAPED to a brown wire. The brown wire looks like there's an end of it (on the diagram - right above the horn) that doesn't connect to anything so that's not a huge deal. The bigger question was the green and yellow wire that has to do with the front brake switch that's not attached to anything. Both wires had factory end connectors on them. Any idea where I can find the front brake switch and attempt to figure out where the other end of the green/yellow wire is if there even is one?
3) The last one I found which may be causing ignition problems is the green wire I found right near the condensers. I can't really find it on the diagram, but it appears to have an original factory wire plug on it but it ends about 2-3 inches outside of the harness. The diagram says it has something to do with the tail light, but I don't understand why it'd have a break in the wiring (from front of the bike to the back) right in the middle. I have a strange feeling that should be attached to something...
My last question may be a simple one and hopefully it will help pin point my electrical issue. Is there such a tool that has a light that hooks between the spark plug wire and the plug itself to let me know if there is a spark going through the wire? I looked through Autozone's website without much luck since I have no idea what it would be called. Has anyone seen these before? Know where to get them and/or how much they run?
I want to get this lil beast running before I take it apart, but I don't really want to take out the whole harness to figure this stuff out if I don't have to.
Thanks guys!
(wiring diagram attached)
As I pushed the starter button to get the bike running, the starter motor turns great - nice and solid but the motor's not sounding like it wants to start at all. My next step was to take off the headlight and see what's up with the wiring - check for anything loose, unplugged, whatever. Everything looked ok except for a couple little "jimmy-rigged" plugs I found...
1) The first one was a ground that comes from the right control through the headlight back to the rear brake switch. I found it on the diagram, no biggie (off ignition switch right in the middle of the page), and according to my Fluke meter it's continuous. What I didn't follow was that there was a red wire plugged into the connection between the 2 black wires that ran out the back of the headlight and was zip tied to the ignition switch section of the main harness. I have no idea what it's supposed to go to, why it would be there (can't find it on the diagram), but for some reason I'm thinking it's a makeshift ground that maybe works with the ignition coil or something leading to the not starting. It has a newer butt end connector on it so it's not factory. No idea on that one.
2) This is the other one that has me confused. Within the headlight there was a green/yellow wire TAPED to a brown wire. The brown wire looks like there's an end of it (on the diagram - right above the horn) that doesn't connect to anything so that's not a huge deal. The bigger question was the green and yellow wire that has to do with the front brake switch that's not attached to anything. Both wires had factory end connectors on them. Any idea where I can find the front brake switch and attempt to figure out where the other end of the green/yellow wire is if there even is one?
3) The last one I found which may be causing ignition problems is the green wire I found right near the condensers. I can't really find it on the diagram, but it appears to have an original factory wire plug on it but it ends about 2-3 inches outside of the harness. The diagram says it has something to do with the tail light, but I don't understand why it'd have a break in the wiring (from front of the bike to the back) right in the middle. I have a strange feeling that should be attached to something...
My last question may be a simple one and hopefully it will help pin point my electrical issue. Is there such a tool that has a light that hooks between the spark plug wire and the plug itself to let me know if there is a spark going through the wire? I looked through Autozone's website without much luck since I have no idea what it would be called. Has anyone seen these before? Know where to get them and/or how much they run?
I want to get this lil beast running before I take it apart, but I don't really want to take out the whole harness to figure this stuff out if I don't have to.
Thanks guys!
(wiring diagram attached)