78 KZ650SR Electrical Death - First time problem

  • OKC_Kent
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Re: 78 KZ650SR Electrical Death - First time problem

20 Jul 2009 18:10 - 20 Jul 2009 18:18
#308323
THAT'S YOUR BIKE?!?!?

SWEET RIDE !!

Come join us here and take home Bike of the Month! :laugh:

www.kz650.info/

You can replace your fuse block with a few of these soldered in.
[IMG
Oklahoma City, OK
78 KZ650 B2 82,000+ miles
Last edit: 20 Jul 2009 18:18 by OKC_Kent.

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  • Cychotic
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  • No sir, I don't like it.
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Re: 78 KZ650SR Electrical Death - First time problem

21 Jul 2009 01:39
#308371
Dang that's a beautiful bike!:ohmy: Glad you got 'er fixed.
1977 KZ650 C1 with '78 C2 motor,
* OEM electronic ignition off '80 KZ750
* 4-into-1 header
* Uni Pod Filters
* #110 main jets, 17.5 pilot jets
1983 Honda V65 Magna stock...sold
1985 Kawasaki Ninja 600R project..sold
1997 Yamaha FZR600...latest toy

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  • RonKZ650
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Re: 78 KZ650SR Electrical Death - First time problem

21 Jul 2009 07:04
#308403
That is a nice SR. I went to all the Chinese auto parts stores and none had AGX fuses. I was in Napa a while back and they had them.
321,000 miles on KZ's that I can remember. Not going to see any more.

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  • bountyhunter
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Re: 78 KZ650SR Electrical Death - First time problem

21 Jul 2009 19:01 - 21 Jul 2009 19:03
#308512
Dave wrote:
SUCCESS!!! 99% sure!

Cleaned off semi-corroded contacts which didn't look THAT bad, read out replacement fuse (cooked but looked ok) read out old fuse (looked a little off, but had good resistance), started right up.

Gonna add some fine sandpaper and a few 20A fuses to the toolkit!

Next test is a long ride - crossing my fingers!
Here's an ancient trick from an even more ancient engineer:

If you have brass or copper connectors that snap onto a fuse, they can gradually corrode over time and cause this kind of overheating and also voltage starving. If you want to really kill the problem, you can get some of the brass(copper) connectors and buff them up very bright and solder tin them and scrub off the excess solder and leave them tin plated. Clean with acetone and they never tarnish or corrode again. Probably easier to just install a new blade style fusebox....:laugh:
1979 KZ-750 Twin
Last edit: 21 Jul 2009 19:03 by bountyhunter.

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