How does this look?

[franklinshaw]

How does this look? Running headlight and taillight and kickstart only.

 

[franklinshaw]

srry its upside down.. ill fix it when I get home

 

[franklinshaw]

a question to go with.. can the condenser be mounted in a mock up oil tank or does it need to be in air flow?

 

[franklinshaw]

........

 

[retiredgentleman]

The condenser does not need air flow.

I revised your sketch a little. I think you want a headlight switch, to have the headlight off when you are starting................optional. Also, you did not show wiring for the tail light. Load fuses are normally 10 amp.

 

[franklinshaw]

That's awesome thank u so much. I have a question tho. My tail light only has two wires coming from it.. Is there something im not seeing?

 

[4stroke]

im pretty sure one goes to hot before switch for running light and one is after switch please correct me if im wrong cause i plan on running this same set up without kick start

 

[4stroke]

how is this set up different from running a pamco?

 

[jayel]

That's awesome thank u so much. I have a question tho. My tail light only has two wires coming from it.. Is there something im not seeing?

one wire is the brake light the other the tail light, the body of the light is the ground for both

how is this set up different from running a pamco?

it isn't the Pamco or any ignition has nothing to do with the tail/brake light circuit

 

[retiredgentleman]

That's awesome thank u so much. I have a question tho. My tail light only has two wires coming from it.. Is there something im not seeing?

Don't forget, just about everything on these bikes is rubber mounted (can't figure out why). Its not like a car, where you can just run the ground from a light to the closest piece of metal. Yamaha had a common ground wire running through the harness, and then grounded that wire at a good bare metal ground on the frame.

Run a ground wire from the tail light body, along the fender and either connect to a known common ground wire or to bare metal ground on the frame.

 

[franklinshaw]

so one common ground wire will work throughout all the grounds in the bike? If so will a 16 gauge wire be sufficient? And if the black ground wire from the stator to the reg/rec are connected do they both need a separate ground for each one?

 

[retiredgentleman]

so one common ground wire will work throughout all the grounds in the bike? If so will a 16 gauge wire be sufficient? And if the black ground wire from the stator to the reg/rec are connected do they both need a separate ground for each one?

I'm not sure how exactly Yamaha ran the commong ground wire(s). If I was wiring from scratch, I would run one ground wire from the headlight bucket, to connect all the grounds in that area. Then I would run another ground wire from the rear tail light area. Those 2 grounds wires, I would take them to the same connection point under the tank, and connect them to bare metal on the frame. Yes, 16 gauge should be sufficient.

The ground brush (at the alternator), is grounded through its mounting screws into the stator frame. It also has a black wire that runs out to the common ground wire in the harness. The rec/reg needs one black wire to run out to the common black wire in the harness. So, there ends up being a black wire from the alternator brush to the rec/reg. That same wire will be grounded to the frame under the tank. In addition, the one brush is grounded through its screws.

You can't have too many grounds...............they are important, especially since many parts on the bike are rubber mounted..

 

[jayel]

since the horn and starter button ground thru the handlebars (rubber mounted) most of these had a black grounding wire from the left switch into the headlight shell, the front fork itself is a poor ground as it's only contact points are thru the fork stem bearings or the clutch and throttle cables, this is why a ground wire back from anything on the front fork (turn signals, horn, starter button and headlight) to a good solid frame ground is important, then we get to the previously mentioned rubber mounted rear fender again a good ground is needed, I like to run grounds to the same point that the battery frame ground uses as stated "You can't have too many grounds"

 

[franklinshaw]

got ya. my three screws that are grounding the alternator brush are nylon. and does the wiring need to be grounded to the frame or can i run all the grounding to the negative side of the batt thats grounded to the frame its self?

 

[franklinshaw]

Heres my baby all this is going into

 

[retiredgentleman]

got ya. my three screws that are grounding the alternator brush are nylon. and does the wiring need to be grounded to the frame or can i run all the grounding to the negative side of the batt thats grounded to the frame its self?

I'm getting confused here. Why do you have nylon screws on one brush? Your original wiring sketch shows 2 ignition coils, so from that I assumed your engine is a 1970 to 1979. With that engine you do not use nylon screws on one brush. I revised your wiring sketch to suit the 70 to 79 type of alternator and rec/reg.

OK you have to state the facts to clear things up:

What year is your engine and alternator?
Which rec/reg do you have..................is it 80 to 83 type or is it 70 to 79 type?
Who installed the nylon screws?
Do you even know which type of rec/reg you have?

 

[franklinshaw]

The engine is a '76. I watched a video showing me that I needed to put nylon screws on the "brushes" plural I meant to say.. telling me that they do not need to be grounded out using this rec/reg.

 

[franklinshaw]

heres how I have it now.

 

[jayel]

got ya. my three screws that are grounding the alternator brush are nylon. and does the wiring need to be grounded to the frame or can i run all the grounding to the negative side of the batt thats grounded to the frame its self?

yes you can but grounding them to the frame side of the cable (same connection electricially) reduces the wires going to the battery post, making it easier to get it out if needed

 

[franklinshaw]

Got it! U guys got me wrried bout these nylon screws now tho..