What is this thing under to my 750G tank?

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14 Apr 2011 20:15 - 14 Apr 2011 20:17 #444639 by mitchellsk
What is this thing under to my 750G tank? was created by mitchellsk

Attachment 2011-04-14_17-17-00_489.jpg not found



There's a little electrical relay or switch under my tank on the left side of the frame under the harness.

What is it and if it's bad or if it's wired wrong would it keep my starter button from working?

Starter button and on/off switch continuity works properly, i have a new solenoid, and have a good battery but my starter button doesn't work. (if I touch the two solenoid posts the engine does turn over).

I'm pretty sure it's all wired up right but this little relay thing almost fell apart when I too it off.

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1980 KZ750G Project
1969 Honda z50 running
1975 Honda 400f almost done
1978 Honda 750k running & driving
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Last edit: 14 Apr 2011 20:17 by mitchellsk.

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14 Apr 2011 20:34 #444645 by MFolks
Replied by MFolks on topic What is this thing under to my 750G tank?
Looks like a 30-40 amp relay added by the previous owner for either horns or lights. Does not look like a Kawasaki part(too me).

1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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14 Apr 2011 20:38 #444649 by MFolks
Replied by MFolks on topic What is this thing under to my 750G tank?
Open up your headlight housing and trace the wiring from the right handlebar start/run switch. Also I believe your clutch lever needs to be squeezed to start the engine(turn it over) this is a safety designed by Kawasaki to prevent starting in gear.

1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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14 Apr 2011 21:40 #444664 by mitchellsk
Replied by mitchellsk on topic What is this thing under to my 750G tank?

MFolks wrote: Also I believe your clutch lever needs to be squeezed to start the engine(turn it over) this is a safety designed by Kawasaki to prevent starting in gear.


Thanks, yes, I found that already and just bypassed the clutch lever switch.

I'll trace more wires this weekend. Just thought maybe this relay or whatever it is might be preventing something.

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www.RacecarMagazine.com

1980 KZ750G Project
1969 Honda z50 running
1975 Honda 400f almost done
1978 Honda 750k running & driving

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14 Apr 2011 23:41 #444687 by kzr750r1
Replied by kzr750r1 on topic What is this thing under to my 750G tank?
Not many electrical parts on a Japanese bikes with Made in Italy printed on them. Surely not factory.

You may need to pop the starter switch in pieces and clean the contacts as well. It's not fun but can be done.

May be a good idea to do even if you don't find the open or resistance in the circuit somewhere.

KZ750R1 + 1991 ZR750 = KZR750R1
Better to be shot out of a cannon then squeezed through a tube. - HST

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14 Apr 2011 23:58 #444693 by Motor Head
Replied by Motor Head on topic What is this thing under to my 750G tank?
Looks from the rusty terminals that is disconnected along time ago. I only see marks on the two "Latch/ control" side and no marks on the two "contact point/ load" side of the relay.
Maybe an old failed Coil Mod, :laugh:

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...

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15 Apr 2011 15:54 #444777 by kzr750r1
Replied by kzr750r1 on topic What is this thing under to my 750G tank?

Motor Head wrote: Looks from the rusty terminals that is disconnected along time ago. I only see marks on the two "Latch/ control" side and no marks on the two "contact point/ load" side of the relay.
Maybe an old failed Coil Mod, :laugh:

Probably not too far from the truth.

KZ750R1 + 1991 ZR750 = KZR750R1
Better to be shot out of a cannon then squeezed through a tube. - HST

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16 Apr 2011 13:08 #444948 by hoghaterkaw
Replied by hoghaterkaw on topic What is this thing under to my 750G tank?
At some point someone may have put on loud horns that needed to use a relay to save the horn button contacts.

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25 Apr 2011 00:58 #446862 by mitchellsk
Replied by mitchellsk on topic What is this thing under to my 750G tank?

hoghaterkaw wrote: At some point someone may have put on loud horns that needed to use a relay to save the horn button contacts.


I think this is right. The horn is very loud and this little relay (I'm assuming) made a clicking noise when I press the horn button if I listened very carefully. The horn wire is not connected and this is pretty much falling apart so I guess I'll have to find a replacement.

Thanks everyone!

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www.RacecarMagazine.com

1980 KZ750G Project
1969 Honda z50 running
1975 Honda 400f almost done
1978 Honda 750k running & driving

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25 Apr 2011 01:23 #446867 by MFolks
Replied by MFolks on topic What is this thing under to my 750G tank?
Auto parts stores carry this type of relay, take the old one along for a match.

1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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