1978 KZ650 Chopper Wiring?
- FrankySwarm
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1978 KZ650 Chopper Wiring?
29 Apr 2011 14:16
Does anyone have a simple wiring diagram for a 1978 KZ650 (just the minimum, such as taillight and headlight, etc.) I figured since i fired all my other wiring I might as well just do em over bare bones ! Thanks in advance.
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- Motor Head
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Re: 1978 KZ650 Chopper Wiring?
01 May 2011 01:22
This is the thread you want,
kzrider.com/forum/4-electrical/172746-19...bones-for-mattylight
Member Loudhvx has done several Bare Bones wiring for others in this thread. Have a look and the info should be there for you.
Member Loudhvx has done several Bare Bones wiring for others in this thread. Have a look and the info should be there for you.

1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...
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- Old Man Rock
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Re: 1978 KZ650 Chopper Wiring?
01 May 2011 12:15 - 01 May 2011 12:48
Edited: removed wrong year/model
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
Last edit: 01 May 2011 12:48 by Old Man Rock.
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- loudhvx
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Re: 1978 KZ650 Chopper Wiring?
01 May 2011 12:41 - 01 May 2011 12:47Old Man Rock wrote: This what you're looking for?
Now this drawing doesn't include lighting/break lights etc... Tap off the ignition switch brown conductor through a toggle switch and tie in your lighting system... Can't get any simpler then that.
Attachment not found
I believe that is for a 77 KZ650. The 78 uses a single-phase permanent magnet alternator. If his is a very late 77 sold in 78, that diagram might work.
Also, check out the starter button/relay wiring. You deleted the black wire from button to relay such that it looks like you are running the black wire to the white hot wire (thus bypassing the ignition switch completely), and at the relay it looks like the start wire is connected to the ground of the battery.
I think you just need to re-draw that black wire, and draw the battery ground from battery to rectifier.

1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Kz550 valve train warning.
Other links.
Last edit: 01 May 2011 12:47 by loudhvx.
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- Old Man Rock
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Re: 1978 KZ650 Chopper Wiring?
01 May 2011 12:47
Good point Loud... Wasn't meaning exact model number but more on how to simplify his wiring.
My bad, I'll remove...
My bad, I'll remove...
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
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- loudhvx
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Re: 1978 KZ650 Chopper Wiring?
01 May 2011 12:50
I didn't realize you were still online. I edited the post because you may want to make a couple fixes on that diagram.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Kz550 valve train warning.
Other links.
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- FrankySwarm
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Re: 1978 KZ650 Chopper Wiring?
02 May 2011 12:55
Thanks for the help guys, i am gonna start making the harness next week so ill do a project thread and show you guys wea I am at!
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- MFolks
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Re: 1978 KZ650 Chopper Wiring?
02 May 2011 16:26
Electrical Connectors, Wire, And supplies
www.easternbeaver.com
www.vintageconnections.com
www.z1enterprises.com/catalog.aspx?pid=KPEL1
www.vehicle-wiring-products.eu
www.electricalconnection.com
www.electricalconnection.com/electrical-components/hitachi.htm
www.pbase.com/mainecruising/wire_termination&page=1
www.crowbarelectricalparts.com/butt_connectors.htm
www.ratwell.com/technical/Terminals.html
www.economycycle.com/servlet/the-Bullet-...lectrical/Categories
www.surplussales.com/SolderlessTerminals/WireTerminals-3.html
www.findtape.com/shop/product.aspx?id=32...&width=1436&height=0
www.easternbeaver.com
www.vintageconnections.com
www.z1enterprises.com/catalog.aspx?pid=KPEL1
www.vehicle-wiring-products.eu
www.electricalconnection.com
www.electricalconnection.com/electrical-components/hitachi.htm
www.pbase.com/mainecruising/wire_termination&page=1
www.crowbarelectricalparts.com/butt_connectors.htm
www.ratwell.com/technical/Terminals.html
www.economycycle.com/servlet/the-Bullet-...lectrical/Categories
www.surplussales.com/SolderlessTerminals/WireTerminals-3.html
www.findtape.com/shop/product.aspx?id=32...&width=1436&height=0
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)
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