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fork modifications and rebuild valving - Printable Version

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+--- Thread: fork modifications and rebuild valving (/showthread.php?tid=14673)

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fork modifications and rebuild valving - 1973cb750 - 02-04-2026

here is my write up on the Racetec gold valve install and a set of .95 kg springs for my weight 

I will add to this post as I rebuild and add the gold valve.

first I removed the wheel and fender brakes.

Then remove the 6mm allen cap out of the bottom of the fork leg have a drain pan ready 

[Image: UBWjV7E.jpeg]
 

next gently pry up the dust cover 

[Image: vtOrpG8.jpeg]

next remove the spring retainer clip do not scratch the chrome on the fork tube 

[Image: ejSgvVD.jpeg]

next break the fork cap loose then unscrew the preload adjuster 
[Image: Kp1pWBM.jpeg]
[Image: l7cfQHX.jpeg]
[Image: sHUZJIm.jpeg]

Here is how I remove the lower leg and fork seal

I do all this with the forks in the triple trees once I remove the lower legs then take the legs off the triple trees 

Here is a quick video of the fork assembly and the race web valve fits in

I will have more to add soon keep an eye out for part 2

RE: fork modifications and rebuild valving - Karidis - 02-04-2026

I thought I had read that the top of the damping tube had to be machined for the emulator to fit. I hope this is incorrect. I have the emulators in my KX250 and it made a difference.

RE: fork modifications and rebuild valving - rdprdp01 - 02-04-2026

Great write-up and much appreciated! David

RE: fork modifications and rebuild valving - 1973cb750 - 02-04-2026

(02-04-2026, 10:00 AM)Karidis Wrote: I thought I had read that the top of the damping tube had to be machined for the emulator to fit. I hope this is incorrect. I have the emulators in my KX250 and it made a difference.

the newer ones have a machined adaptor we will find out for sure !

RE: fork modifications and rebuild valving - 1973cb750 - 02-08-2026

got the emulators ordered now i got make some more cash olla to get the springs

RE: fork modifications and rebuild valving - The_Crackerdog - 02-09-2026

(02-04-2026, 09:11 AM)1973cb750 Wrote: here is my write up on the Racetec gold valve install and a set of .95 kg springs for my weight 

I will add to this post as I rebuild and add the gold valve.

first I removed the wheel and fender brakes.

Then remove the 6mm allen cap out of the bottom of the fork leg have a drain pan ready 

[Image: UBWjV7E.jpeg]
 

next gently pry up the dust cover 

[Image: vtOrpG8.jpeg]

next remove the spring retainer clip do not scratch the chrome on the fork tube 

[Image: ejSgvVD.jpeg]

next break the fork cap loose then unscrew the preload adjuster 
[Image: Kp1pWBM.jpeg]
[Image: l7cfQHX.jpeg]
[Image: sHUZJIm.jpeg]

here is how I remove the lower leg and fork seal

I do all this with the forks in the triple trees once I remove the lower legs then take the legs off the triple trees 



here is a quick video of the fork assembly and where the race tec valve fits in 


I will have more to add soon keep an eye out for part 2

Thanks for posting this info and the video. I’m going to be doing the same soon, so very helpful. Looking forward to part 2 ?

RE: fork modifications and rebuild valving - 1973cb750 - 02-09-2026

video of seal install how too

RE: fork modifications and rebuild valving - 1973cb750 - 02-11-2026

ok i got the new valves installed pretty easy not modifications other that the dampening rods.  make sure to use a locking compound on the dampening rod bolt and torque to 15 ft lbs install spring if it wont tighten.



Gold Valve install
here is a few of the enlarged holes and adding 2 holes per rod 

[Image: W3RBWyh.jpeg]

[Image: krEtr21.jpeg]

here i drilled one hole in the 2 blank plates my set up called for only 1 hole per side 
[Image: AnylJlv.jpeg]

helps to drill a small hole after measuring and center punching a spot for the new holes. I used a cheap step bit and made them all 5/16. that worked fine I deburred the inside with a wooden dowl and sand paper then cleaned them out with carb cleaner followed by compressed air 

[Image: TN3j02I.jpeg]

this is what comes in the box
2 valve assemblies 
2 blank plates 
3 sets of springs 
2 circlips not used in the case of the cb1100

[Image: QOHV1u5.jpeg]

here is a detailed video the cb is not much diff than our bikes

RE: fork modifications and rebuild valving - 1973cb750 - 02-11-2026

each fork took exactly 16 oz to get the right oil height measurement of 140mm that race tec recomends that spec is not what the manual states fyi 

[Image: gNQhOXM.jpeg]
[Image: Eiv2MJq.jpeg]
almost done tire and springs next

RE: fork modifications and rebuild valving - Cormanus - 02-11-2026

Really helpful stuff. Thanks.