Adding A Fuse To The OEM Fuse Block (K100RS4V or K1100)

[frankenduck]

Warning: It's a good idea to disconnect one or both battery terminals prior to doing anything electrical to avoid causing any inadvertent shorts.

K100RS4V and K1100 bikes have 10 slot fuse blocks.  The K100RS4V and K1100 bikes have three empty fuse slots at the bottom and the K1100LT has one.  Instead of adding an additional fuse block or having in-line fuses for added electrical equipment it is possible to utilize these empty fuse slots.

To start with, you'll need two of the OEM fuse block terminals for each fuse you intend to add.  I get them from old wiring harnesses that I've disassembled.  Be sure to get terminals that have an appropriate wiring gauge for the load your new fuse will carry.

To add the terminals push the white bar down and out from the top of the fuse block:

Insert your "new" fuse terminals and then replace the white bar.

The side of the fuse slot to the front of the bike should be the "hot" side.  For unswtiched fuses I usually run the hot side of the fuse slot to a ring terminal at the rear terminal on the starter relay.

[frankenduck]

Here's an example from a K1100RS where I added fuses for the high and low beam headlight relays and one for the aux light relay too:

[wmax351]

I just ran a 12 gauge, 30A trunk line (inline fused under the seat) to the headlight/aux light relays. Runs my 200 watts of lights wonderfully.

May be an interesting consideration to add a fuse block at the front fairing area. Takes care of all devices in the front.

[frankenduck]

I like this approach for adding a fuse block: Adding A Four Circuit Fuse Block Next to The OEM Fuse Block