I've seen alot of 900/1000 post about the junction/relay box problems. While looking through my parts box, I found I had an extra junction box for a ZL600. At some point in time, some 600 owner might need to repair one of these.
ZL600 Junction Box 26021-1056 (Active Kaw Part Number 59416-1052)
21. Accessory 10A Fuse 24. Headlight 10A Fuse 27. Starter Circuit Relay
22. Main 30A Fuse 25. Headlight Relay 28. Diodes for Safety Device
23. Fan Relay 26. Diodes 29. Tail light 10A Fuse
All Relays are marked “NEC MR301-N9 5 M2” Seems a good replacement is a MR301-9HSL
The back is held on by 4 plastic rivets, one in each corner. Take a drill bit and lightly drill the top off the rivets
The front of the junction box. The two fuses to the left are spares. The fuses to the right, the 30A fuse is the main fuse, the other 10A fuses are the headlight, the tail light and the accessory fuse.
Hmmm, kind of nasty in there!
After a bit of cleaning. I did see a few of the solder pads that looked like they could use a touch with a soldering iron
The top side of the circuit board. Under the left side metal connectors are 5 diodes.
The relays from left to right, Fan Relay, Headlight Relay, and Starter circuit relay.
All Relays are marked “NEC MR301-N9 5 M2” Seems a good replacement is a MR301-9HSL from what I've read on other Kawasaki Forum's
This type of junction box is used on many different kinds of Kawasaki's some don't have a starter circuit relay or a headlight relay. Make sure if you buy a used part from another Kawasaki that it uses the same circuits as the ZL600.
I would think a bit of superglue or epoxy on the rear plastic panel would hold the junction box back together after repair.
The part (59416-1052) can still be purchased from Kawasaki but the one I can find on ebay is $134
Many different bikes uses this Junction Box:
1987 - 2006 Vulcan 750
1985 - 1987 ZX600/Ninja 600R/600RX
1986 - 1987 ZL600
Hope this helps someone along the way.