1979 CBX Project

[RobbieAU]

The plugs look pretty good but it looks like carbs could use a vacuum sync.
I don't believe those CRs have any vacuum ports for the sync adaptors but
I bet there is a way to fashion some depending on the wall thickness of the
carb to port tubes (front of the carbs).

Bike looks great ! Nice job.

Yeah this is a challenge with the CRS carbs due to there being no vacuum ports. I have only bench synchronized them with a drill bit so they are close but not perfect.

Went on another ride today about 100KMs and gave the bike a fair few good pulls up to 9000RPM at full throttle. Up to about 140KMPH. Pulls strong, I can see all the power is up top above 6500RPM. I can't get enough of that sound. Will be a great bike to take the wife out on, we have been going 2 up on the Husqvarna 701SM for the last few years. I am sure she will find the CBX more comfortable.

Will enjoy riding the bike for summer now and do the following next winter

- Replace the foorpeg rubbers - have some ordered from Terry on the way to Australia now. Any suggestions for adhesive to use for these that I can buy in Australia. The stuff Terry uses doesn't ship to Aus.

- Maybe paint the engine back to silver, although the black is actually growing on me now. What do you guys think?

[daves79x]

I think get a Gold Wing for you and your wife to ride. Stop fooling yourself that she is/will be comfortable on a CBX, especially one as noisy as this one is!!!

Dave

[RobbieAU]

I think get a Gold Wing for you and your wife to ride. Stop fooling yourself that she is/will be comfortable on a CBX, especially one as noisy as this one is!!!

Dave

You are totally correct Dave. I would love to restore an early Gold Wing. My worry is that she will never go back to the more uncomfortable bikes after the Gold Wing experience.

[FalldownPhil]

" Replace the foorpeg rubbers - have some ordered from Terry on the way to Australia now. Any suggestions for adhesive to use for these that I can buy in Australia. The stuff Terry uses doesn't ship to Aus."

May I suggest somewhere that replaces automotive windshields. The black gooey stuff they use when installing a new windshield glass works well.
Best,
Phil

[512tr]

The plugs look pretty good but it looks like carbs could use a vacuum sync.
I don't believe those CRs have any vacuum ports for the sync adaptors but
I bet there is a way to fashion some depending on the wall thickness of the
carb to port tubes (front of the carbs).

Bike looks great ! Nice job.

Yeah this is a challenge with the CRS carbs due to there being no vacuum ports. I have only bench synchronized them with a drill bit so they are close but not perfect.

Went on another ride today about 100KMs and gave the bike a fair few good pulls up to 9000RPM at full throttle. Up to about 140KMPH. Pulls strong, I can see all the power is up top above 6500RPM. I can't get enough of that sound. Will be a great bike to take the wife out on, we have been going 2 up on the Husqvarna 701SM for the last few years. I am sure she will find the CBX more comfortable.

Will enjoy riding the bike for summer now and do the following next winter

- Replace the foorpeg rubbers - have some ordered from Terry on the way to Australia now. Any suggestions for adhesive to use for these that I can buy in Australia. The stuff Terry uses doesn't ship to Aus.

- Maybe paint the engine back to silver, although the black is actually growing on me now. What do you guys think?

Loctite do have several good adhesives to glue rubber to aluminium, will assume you find Loctite products all over AU.

In my opinion a silver painted or polished engine highlights the engine much more than a black painted, i think a silver engine looks 20% bigger than a black one, and show the engine details much more.

[RobbieAU]

" Replace the foorpeg rubbers - have some ordered from Terry on the way to Australia now. Any suggestions for adhesive to use for these that I can buy in Australia. The stuff Terry uses doesn't ship to Aus."

May I suggest somewhere that replaces automotive windshields. The black gooey stuff they use when installing a new windshield glass works well.
Best,
Phil

Thanks for the response Phil. I can get that stuff easily in Australia. Have you used windshield adhesive successfully for this application? I want to be sure that it will last as they are not the cheapest little pieces of rubber I have purchased and windshield adhesive is not specifically made for sticking rubber to anything. I have Loctite 480 on hand that says it is for rubber to metal adhesion, but I see that the stuff Terry recommends is a very specialist 2 part glue. Tech-bond SI-Black.

Note that we get temperatures from 0-45 degrees C. About 32-112 F

Cheers,

Rob

[RobbieAU]

[quote=512tr post_id=102507 time=1662965489
Loctite do have several good adhesives to glue rubber to aluminium, will assume you find Loctite products all over AU.

In my opinion a silver painted or polished engine highlights the engine much more than a black painted, i think a silver engine looks 20% bigger than a black one, and show the engine details much more.
[/quote]

Thanks, I'm thinking I'll just glue some old rubber to some alloy I have with the loctite 480 and test it by leaving it out in the weather for a few weeks.

I have the same thoughts about the engine looking bigger in silver and it does look more like the centerpiece of the bike in silver IMO. I'm pretty sure the silver engine is bare aluminum which means to do this properly I would need to strip the black paint and scrape back, then possible 100+hours of hand polishing. Is there anyone on here that has done this process before - black engine to stock looing silver engine?

[512tr]

[/quote]

Thanks, I'm thinking I'll just glue some old rubber to some alloy I have with the loctite 480 and test it by leaving it out in the weather for a few weeks.

I have the same thoughts about the engine looking bigger in silver and it does look more like the centerpiece of the bike in silver IMO. I'm pretty sure the silver engine is bare aluminum which means to do this properly I would need to strip the black paint and scrape back, then possible 100+hours of hand polishing. Is there anyone on here that has done this process before - black engine to stock looing silver engine?
[/quote]

Loctite 480 will do, alternative you could use a contact adhesive.

If you find some good paint remover you could try to remove most of the black paint, but these days everything should be so environmentally friendly that there are difficult to find any paint remover that really works. If the black paint is good quality, you could probably leave it on and put on a good primer before doing the silver paint.
But when that is said, your bike looks very good as it is.

Many years ago, I removed the black paint and polished the cases, repainted the cylinders/head with black wrinkle finished, I regret painting it black, should have used silver paint.
The steel covers are polished and clear coated, same with the magnesium gear/sprocket covers.

[RobbieAU]

Wow. That engine looks awesome!

I bet you spent 50+ hours doing all that polishing and painting?

The black paint looks to be the original Honda paint so it will be really tough to remove. Im thinking I will leave it for now and see how I like it after the riding season. I could complete a fair amount of some other projects I have in the go for a minor change.

I'll give to loctite 480 a go and report back with findings.

[RobbieAU]

Was the valve cover originally chrome and then painted? I'm thinking the valve cover would look better without chrome

[RobbieAU]

I successfully bonded the new footpeg rubbers using Loctite 480.

Before and After photos in no particular order...

[512tr]

Looks good

Was the valve cover originally chrome and then painted? I'm thinking the valve cover would look better without chrome

Are you asking me? My valve cover is not chrome, polished as the rest of the aluminium.
Personally, I dont like chrome, I prefer aluminium or stainless, polished or brushed