Topic: Goldwing Fork question

[American Locomotive]

Hey guys, I just picked up a '76 CB750F. It was partially restored at some point fairly recently. It's got a new wiring harness, engine rebuild (well, supposedly, seems like every bike for sale has a newly rebuilt engine these days), new seat, and a not so awesome paint job (cracks, some runs). The plastics were in pretty good shape until I accidentally broke the fuse-box side cover, but I ordered a new set from frankenstuff since I'm repainting it anyways.

Anyways, this bike had been "upgraded" to a Goldwing fork for the dual-disc brakes. It's got 5-bolt rotors, and has fittings on top to adjust the air pressure inside the forks. The PO set up some kind of crossover hose with a pressure gauge, so the air pressure in each fork always matches, and you can easily see the air pressure.

So I got two questions: What kind of air pressure should I be running in the forks? The forks had 0 pressure in them when I got the bike, and I put them at 15 PSI. It picked the front of the bike up a little bit, and seemed to alleviate front end braking dive somewhat. Is this just something I'm going to have to experiment with until I find something I like?

Are there any upgrades available for these forks? I've heard that Race-Tech emulators are the go-to for CB forks, but what about Goldwing forks?

[Flyin900]

Depending on the forks Honda typically suggested as low as 6 lbs on smaller cc bikes like 650/750cc sizes. Usually the bigger "Wings" run 11 to 18 PSI and it is trial and error on what works best for the ride and weight of the bike and rider.
Since the CB 750 is much lighter overall than the typical "Wing" that runs around 650 lbs plus in weight, I would try the lower end of the scale first.

[American Locomotive]

Awesome, thanks.

Is there any real way to identify which particular forks I have?

[754]

Without a picture it can be very tough..

[BPellerine]

could be an aftermarket air supply kit for the gl,I had one.

[seanbarney41]

If you have 5 bolt rotors, it is likely 78-81? (or so?)  What wheel is on there?  Post a pic of the calipers please.

[Goofaroo]

I recently freshened up a 1986 Aspencade and found that Sonic Springs had straight wound springs available in a few different rates.  I removed the collars and all related hoses and welded the air holes shut.  I set the preload for about 35mm of static sag and rebuilt the anti-dive mechanism and they work great and I don't have to add air.   I still use the onboard compressor to adjust the rear depending on the load I'm carrying.