Topic: Adapting Emgo Vintage Handlebar Switches

[.RJ]

Hi All,

I just picked up a CB350 project that I'm trying to get on the road.  The bike came with a set of Emgo vintage handlebar switches and I'm trying to get them hooked up to the original wiring harness.  I swapped the handlebar, which doesnt have any provisions for routing the cables through the bar so the original handlebar switches are out, although I'd have preferred to use those.



These are the switches





And I found another forum post where the wiring is broken down here:

http://www.dotheton.com/forum/index.php?topic=66345.0

RIGHT SWITCH

Red Wire - Energized By Keyed Ignition Switch. Controls power switch (Off, PO, ON).
Blue Wire w/bullet connector - Energized by Keyed Ignition Switch. Pig tailed to Red Wire. Connects to Blue Wire w/socket connector supplies power for starter.
Blue Wire w/socket connector - Energized by Blue Wire w/bullet connector supplies power for starter.
Black Wire - Energizes by Starter Button via the Blue Wire w/socket connector. Connects to starter relay.
Tan Wire - Energized by the Off, PO, On switch. Controls the Off, Run, Off switch. Energizes the Yellow/Red Wire.
Yellow/Red Wire - Energized by the Off, Run, Off, Run switch.

LEFT SWITCH

Blue Wire - Connects to the Blue Wire w/socket connector from the RIGHT SWITCH. Energizes the LEFT SWITCH
Red/Yellow Wire - Low Beam
Red/Black Wire - High Beam
Brown Wire - Pass Switch
Black Wire - Horn Switch
Green Wire - Left Signal
Grey Wire - Right Signal
Orange Wire - Flasher Relay Connection

I believe this is the correct wiring schematic for the bike - its a '72 K4 CB350 - http://www.oregonmotorcycleparts.com/Diagrams/CB350_K4.jpg

The left switch is simple enough, I've got those wired although I dont know what to do with the 'Pass Switch' so I've left that unused.

The right switch is where I'm running into some trouble - As it is now, I've connected them like this:


Red Wire - Energized By Keyed Ignition Switch. Controls power switch (Off, PO, ON) - Connected to black wire coming off of the main harness, from ignition switch
Blue Wire w/bullet connector - Energized by Keyed Ignition Switch. Pig tailed to Red Wire. Connects to Blue Wire w/socket connector supplies power for starter. Connected to black wire coming off of the main harness, from ignition switch
Blue Wire w/socket connector - Energized by Blue Wire w/bullet connector supplies power for starter. - Connected to black wire coming off of the main harness, from ignition switch
Black Wire - Energizes by Starter Button via the Blue Wire w/socket connector. Connects to starter relay. - Connected to yellow/red wire off of main harness to starter relay
Tan Wire - Energized by the Off, PO, On switch. Controls the Off, Run, Off switch. Energizes the Yellow/Red Wire. Not sure what to do here
Yellow/Red Wire - Energized by the Off, Run, Off, Run switch. Connected to black/white wire from main harness to ignition coils

Looking at the wiring, there's also a white lead that connects to a yellow/white wire from the Alternator output - where should this go?  Are they to provide power direct from alternator to the high beam headlight? 

Thanks for any advice

-RJ

[Duke McDukiedook]

You don't have a dremel and a drill in your possession to cut access holes in your bars?
I still need to get a Dremel myself so I can put my Euro bars on my bike

[Don R]

DSS sells a repro 71 cb750 bar for the euro spec bikes that's perfect and already drilled. Just order from the non-us bikes list.

[HondaMan]

I also have several of the 750K1 bars from PartsNmore: they were accidentally sold as K2-K3 bars and are really the ones from the 450. I think they will also fit the 350.

[Don R]

I always thought partsnmore had the K1 handlebar thing backwards. The K1 european spec bars  look a lot like 400F bars, maybe a tad longer because it seemed the Master Cylinder fit easier. 2" of rise. David Silver liked them enough he bought them back with the rest of my k1.

[Duke McDukiedook]

DSS sells a repro 71 cb750 bar for the euro spec bikes that's perfect and already drilled. Just order from the non-us bikes list.

Dammit Don! If only I knew about that predrilled Euro bar before I bought my undrilled euro bar! Curses!