KZR's Bikes of the Month for 2024

Saving a '81 KZ750-E

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25 Aug 2021 16:14 #854338 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
The turn signals are aftermarket, but not LED.  They are incandescent bulbs.  They are two wire, and the stock are three wire (two, with a chassis ground).  I added a chassis ground to these, but that didn't change anything.

Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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25 Aug 2021 17:29 #854347 by Nessism
Replied by Nessism on topic Saving a '81 KZ750-E
Hope you figure out the turn signal issue.  FWIW, if your battery is low on charge that can affect the flashing.  I'm not sure what the voltage threshold level is, I just know if the charge is low the lights won't flash.

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25 Aug 2021 20:14 #854353 by 750 R1
Replied by 750 R1 on topic Saving a '81 KZ750-E
I had planned on going through the old harness on my bike, I'm also using different blinkers, hand controls, ignition and other stuff, just decided it would be easier to build a whole new harness, I'll be using a Moto gadget  MO unit...

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26 Aug 2021 09:00 #854368 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
The battery is brand new, and freshly charged.  Reads 12.7 volts.

Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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16 Sep 2021 14:53 #855354 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
After all of my double checking, cleaning connections, etc., I decided the only thing left to do was replace the flasher relay.  It arrived today in the mail, and low and behold the turn signals are working!  I guess age and non-use can get to the relays.  It's probably rusted and/or corroded inside.  Now on the the fuel system and brakes!  

Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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16 Sep 2021 16:58 #855364 by 750 R1
Replied by 750 R1 on topic Saving a '81 KZ750-E

After all of my double checking, cleaning connections, etc., I decided the only thing left to do was replace the flasher relay.  It arrived today in the mail, and low and behold the turn signals are working!  I guess age and non-use can get to the relays.  It's probably rusted and/or corroded inside.  Now on the the fuel system and brakes!  

I hate parts that you can't obviously see a fault.   Years ago I had a 750 Honda that started running a bit rough, we finally tracked the problem down to a bad condenser, so off to the store to buy a new one, fitted it and still had the same problem. My mate at the time, had a 750 as well so we swapped out the points and played around with everything and still it wouldn't run, I gave up and was telling another guy about the problem and he said he had a multi meter and started checking everything, turns out we were right, the original condenser was shot, AND SO WAS THE NEW ONE....!!!!   What a pain in the butt...!!!! 

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16 Sep 2021 18:09 #855366 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
If you work on vehicles long enough, you find this situation actually happens.  More often than you expect it to.

Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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17 Sep 2021 02:09 #855389 by 750 R1
Replied by 750 R1 on topic Saving a '81 KZ750-E

If you work on vehicles long enough, you find this situation actually happens.  More often than you expect it to.
Bought my first big road bike in 1979, i'm definitely hearing you on that one....

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18 Sep 2021 15:00 - 18 Sep 2021 15:02 #855456 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
First time running with fuel in the repaired tank.  No leaks!  Well, in the tank, anyways.  The fuel "T" on the carb bank is weeping.  I used all new orings.  Hoping it doesn't have a hairline crack.  I also put the first official heat cycle on the engine since I had a larger fuel supply.  Finally showing that golden hue on the stainless head pipes.

 

Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)
Last edit: 18 Sep 2021 15:02 by Skidmark.

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19 Sep 2021 21:04 #855509 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
I finished positioning the handlebars, mirrors, and levers (for now).  Finished routing the wires and put the headlight in.  Here's a walk around the front end.  First time it's been this complete up front.


Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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19 Sep 2021 21:25 #855511 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
The list is getting shorter:

Make steering damper mount
Make seat hinge pins (lost the originals)
Make battery strap (original didn't come with the bike)
Install chain guard
Test/repair horn
Install rear shocks (new ones on order)

GO FOR A TEST RIDE!!!  
 

Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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20 Sep 2021 15:14 #855546 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
This never crossed my mind until I sourced the hardware and bolted it up - why design a stabilizer with two heim joints?  One of the mounts needs to be rigid, or semi-rigid, for this to work properly and not rattle like a clatter bone in a goose's a$$.  Now I need to redesign the frame mount.  


Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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