1981 gs750 (gs750e) Retro Racer project

[LarsKroghStea]

Started to redo the wiring today. First picture is the backside of the main fuse. Second and third picture is the connection for reg/rec. The red wire goes directly to the main fuse since the original fuse-board is gone.


2019-08-02_10-17-44 by Lars Krogh-Stea, on Flickr


2019-08-02_10-17-33 by Lars Krogh-Stea, on Flickr


2019-08-02_10-17-21 by Lars Krogh-Stea, on Flickr

[LarsKroghStea]

Had to trim the box a bit in the front and bend in the sides some in the middle, to get the fueltank low enough, but now it fits better than expected


2019-08-02_10-15-29 by Lars Krogh-Stea, on Flickr


2019-08-02_10-15-13 by Lars Krogh-Stea, on Flickr


2019-08-02_10-14-57 by Lars Krogh-Stea, on Flickr

[Buffalo Bill]

All very nice work, lovely!
Too late now, but it would have been nice to punch in the tank sides a bit for knee bracing. Something sorely lacking in gas tanks of the period.
Anybody who's done some very hard braking on a track or street knows why that's a small thing for a big help.
PS: You can still buy or fabricate a fork brace, very important on those spindly fork tubes.

[LarsKroghStea]

The tank can be propped up for easier access to the m-unit:


2019-08-02_10-15-57 by Lars Krogh-Stea, on Flickr


2019-08-02_10-16-39 by Lars Krogh-Stea, on Flickr

[LarsKroghStea]

All very nice work, lovely!
Too late now, but it would have been nice to punch in the tank sides a bit for knee bracing. Something sorely lacking in gas tanks of the period.
Anybody who's done some very hard braking on a track or street knows why that's a small thing for a big help.
PS: You can still buy or fabricate a fork brace, very important on those spindly fork tubes.

Thank you! Yes, knee indents would be cool too. I had a Kawasaki zx7-r Ninja before and the knees fit perfect when braking, and as you say, it's a big help
I don't know how much it would help on this bike though, as the rearsets are positioned pretty far towards the rear. This makes the leg angle so that when I sit towards the front of the seat, the knees are where the rear camshaft-cover is. A little higher when i sit towards the rear. As you can see on the pictures below, the cx 500 tank is pretty narrow, and has a shape that allows the knees/thighs to fit pretty well if I have may toeballs on the pegs. Not nearly as effective as well made indents though.

IMG_20170630_144244 by Lars Krogh-Stea, on Flickr

IMG_20170630_144016_1 by Lars Krogh-Stea, on Flickr


I was looking into fork braces, espesially the Tarossi. But as I miss the braking power of the Ninja, I've decided to do a fork swap later on. I've bought a set of GSX-R 2005 USD forks with radially mounted calipers.
The calipers I'm going to sell again as they give the wrong ratio for the radial master pump I bought. The master pump is 16mm as that was perfect for the original calipers. The Yamaha R1 monoblock calipers are highly rated and the piston area makes for a perfect fit for a 16mm master. Lots of amateur racers do this swap on their GSX-Rs. Also I dont want to buy new Accossato levers as they were pretty expensive.

gafler by Lars Krogh-Stea, on Flickr

IMG_20170407_115832 by Lars Krogh-Stea, on Flickr


I'll hopefully be able to do the fork swap next winter. I'm waiting for better exhange rates for the dollar before I order a front wheel from Cognito Moto

cb750-frontendswap by Lars Krogh-Stea, on Flickr

[LarsKroghStea]

Pretty happy with the decision to powdercoat the rearsets gloss black
I haven't finished the left footpeg yet, but the season is getting close to the end and I want to get the bike on the road, so I'll go with the black nylon prototype for now


2019-08-25_10-05-02 by Lars Krogh-Stea, on Flickr


2019-08-25_10-04-32 by Lars Krogh-Stea, on Flickr


2019-08-25_10-04-40 by Lars Krogh-Stea, on Flickr


2019-08-25_10-05-25 by Lars Krogh-Stea, on Flickr


2019-08-25_10-05-32 by Lars Krogh-Stea, on Flickr


2019-08-25_10-05-54 by Lars Krogh-Stea, on Flickr


2019-08-25_10-07-43 by Lars Krogh-Stea, on Flickr

[Buffalo Bill]

Those look good. I was thinking another benefit would be; they won't chew up your boot soles like bare aluminum race pegs do.
Really shortens the life of expensive, over engineered racing boots.

[LarsKroghStea]

My father got a new lift/table for the garage and it made working with the bike so much easier


2019-08-31_09-14-50 by Lars Krogh-Stea, on Flickr

[LarsKroghStea]

Rearset back in black


2019-08-31_09-15-07 by Lars Krogh-Stea, on Flickr


2019-08-31_09-17-00 by Lars Krogh-Stea, on Flickr

[LarsKroghStea]

Heatshrink soldering is an extreme timesaver (at least for me who hasn't used a soldering iron in ages).


2019-08-31_09-15-42 by Lars Krogh-Stea, on Flickr


2019-08-31_09-16-29 by Lars Krogh-Stea, on Flickr

[LarsKroghStea]

The handlebar controls I bought came with one momentary and two laching buttons. I knew this in advance, but I bought them anyway because the housing are good quality and I have some spare M12 momentary steel buttons. What I didn't know was that they were non standard threads and I don't have a tap that fits. Thankfully they came with some low profile nuts and the housing have just enough room for them to fit.


2019-07-15_10-24-17 by Lars Krogh-Stea, on Flickr


2019-08-31_09-16-49 by Lars Krogh-Stea, on Flickr

[LarsKroghStea]

There's no room for the ignition-lock on the top triple so I'll have to place it somewhere else.
Anyone have a suggestion? Pictures are welcome

[LarsKroghStea]

I'm thinking maybe over the carburettors, on the right side where I've marked with a blue dot.


Tenning by Lars Krogh-Stea, on Flickr

[LarsKroghStea]

Accossato PRS2 radial master with matching clutch lever. Blue ATE brake fluid matched the blue stripes on the tank and seat nicely


2019-09-06_04-03-38 by Lars Krogh-Stea, on Flickr




IMG_20170407_115832 by Lars Krogh-Stea, on Flickr

[LarsKroghStea]

Very temporary varning light panel Will use this until the new top triple is finished.


2019-09-06_04-03-15 by Lars Krogh-Stea, on Flickr