In order to keep the front brake light with the early GL brakes, you gotta keep the junction block where the switch lives. That means you need a three hose set-up with banjo fittings on each end. The top hose will be for higher bars than you will probably be using so you might want to piece out the three hoses instead of a kit.
It'll be the same setup, switch and all. 3 lines. I had hoped there would be an aftermarket kit but, I'm not familiar enough with those bikes enought to know what exactly to ask for. So I've been searching for a 750f kit because I know it to be similar. Also been looking for individual lines for A WHILE now, always right length wrong fittings or the other way around. Pain in the ass. If I can run banjo fittings on the brake end it would be no problem. Just finding the threaded line for that end has been the hassle. All the others are standard banjo.
Hi guys, I'm a new member here. I just picked up a 1978 CB750K and I'm having lots of fun going through it and getting it ready for the road. Anyway, I thought I'd share some info on brake lines.. Here's a link to a company that will make whatever length with whatever fittings you need. Oh, and they have lots of colors, too.
you could just order the individual hoses and fittings separately through DK using the Goodridge or the Russel hoses...I had to use a small 6" Goodridge on my 500T b/c of how low the bars are. The hoses will run you $15-30/ea. and probably $3-5 for each fitting. If you only need 3 hoses you should be able to do the whole thing with SS braided hoses for under $100. Not exactly cheap, but they'll work a hell of a lot better than stock and look way cooler (which is the important thing after all).