Salt City Cafe Build 1971 CB750 - Its Finally Done!

Re: Salt City Cafe Build 1970 CB750

Cool. It should stop way better than my stock set-up. Mind you, before I stripped it the front caliper was seized so I relied on the rear drum to ride the 180 miles home. That was interesting!
 
Re: Salt City Cafe Build 1970 CB750

Update time. It was carb cleaning day and well...you will see how well that went.

First though I gotta show off my shameless rip off of speedbump's oil tank. I fabbed it then had my cousin TIG weld it.


He did some super clean welds


Now for those carbs. This is how they looked after I put them in a carb clean dip for like 24 hours...trust me they look better


And here is what greeted me inside




So I went to work in my play pen. Luckily with K1 carbs they are easy to separate and work on


Here is that same carb and bowl after tear down and a cleaning..I was pleasantly surprised


Unfortunately I also discovered along the way that all but one of my throttle valves are seized up. I posted a thread about getting them unstuck but if anyone has any advice I would appreciate it. Yes I searched and I would prefer a different solution to soaking them in diesel fuel.


Anyway it was time to give up on the carbs for now so I decided to glass bead blast my rear sprocket

Before:


After:


That's all for now...slow but sure
 
Re: Salt City Cafe Build 1970 CB750

use some heat on the carb body around the slide,propane torch is safe,the slide is pretty dense so it will soak heat slower once some heat is in the body you should be able to carefully pry free
 
Re: Salt City Cafe Build 1970 CB750

i have done it many times,it always works eventually, it may take a few tries letting cool in between with some penetrant applied to soak
just use some common sense with the heat, smoking is plenty hot
 
Re: Salt City Cafe Build 1970 CB750

Carbs came unstuck with minimal effort...didn't even need heat. Guess sitting soaked in carb cleaner for a week did the trick

Sent from my SM-T310 using Tapatalk
 
Re: Salt City Cafe Build 1970 CB750

So if you recall this is where we left off


So since I was able to get the throttle valves unseized I moved on to taking everything else apart and cleaning it all up.

Getting the floats out wasn't easy the pins were not coming out without a fight so needless to say they got destroyed in the process.


However I came up with a good and in this case FREE!!! Solution. I went to the local welding supply store and asked if they had any brass rod about the same diameter as my float pin. They did and since I only wanted one rod he gave it to me no charge


I cut it off a little long then ground it so it was smooth and all round. Here is the result.


Next the floats. They started out pretty gross


But with some work they cleaned up nicely. A tip, get a little bucket of water and drop your floats in and make sure they still float and don't take in any liquid.


And there we go saved like 70 bucks.


One more tip. If you're going to take your carbs all apart and separate them mark them based on what cylinder they go to that way you don't mix anything up. I just used a punch and put little dots on both the carb body and the bowl.


And here we have it :) They will get torn apart again to replace jets and some o-rings but just wanted to reassemble to check.


Next the valve cover because how well it cleaned up would determine what I do with the rest of the motor.


So it cleaned up pretty well but it's really in between. It has lots of oxidation and I like a patina type look but this is a bit much , however I don't want fully polished. So any suggestions on how to clean it up a bit more than this but not a full polish?


Sent from my SM-T310 using Tapatalk
 
Re: Salt City Cafe Build 1970 CB750

SaltCityCafe said:
So if you recall this is where we left off


So since I was able to get the throttle valves unseized I moved on to taking everything else apart and cleaning it all up.

Getting the floats out wasn't easy the pins were not coming out without a fight so needless to say they got destroyed in the process.


However I came up with a good and in this case FREE!!! Solution. I went to the local welding supply store and asked if they had any brass rod about the same diameter as my float pin. They did and since I only wanted one rod he gave it to me no charge


I cut it off a little long then ground it so it was smooth and all round. Here is the result.


Next the floats. They started out pretty gross


But with some work they cleaned up nicely. A tip, get a little bucket of water and drop your floats in and make sure they still float and don't take in any liquid.


And there we go saved like 70 bucks.


One more tip. If you're going to take your carbs all apart and separate them mark them based on what cylinder they go to that way you don't mix anything up. I just used a punch and put little dots on both the carb body and the bowl.


And here we have it :) They will get torn apart again to replace jets and some o-rings but just wanted to reassemble to check.


Next the valve cover because how well it cleaned up would determine what I do with the rest of the motor.


So it cleaned up pretty well but it's really in between. It has lots of oxidation and I like a patina type look but this is a bit much , however I don't want fully polished. So any suggestions on how to clean it up a bit more than this but not a full polish?


Sent from my SM-T310 using Tapatalk

I have seen a few people use steel wool and WD-40 to clean them up without polishing.
 
Re: Salt City Cafe Build 1970 CB750

Update.

I finally have all the machine work done for my front end. I'm missing a few bolts and the bolt shop was closed today so its just a sitting together mock up. After I get the bolts and get stuff powder coated I can put bearings in and do a real assembly. Looking really good and fitting well to so I'm pleased so far.

Going to have my rear hop back from Sonic this week too so hopefully next week I can really start getting some stuff set and finalized.











Sent from my SM-T310 using Tapatalk
 
Re: Salt City Cafe Build 1970 CB750

+1 i like
the front hub looks like you have moved the bearings as well? so the are actually carried by the adapters ?
 
Re: Re: Salt City Cafe Build 1970 CB750

xb33bsa said:
+1 i like
the front hub looks like you have moved the bearings as well? so the are actually carried by the adapters ?

That's correct. The old bearing races are machined off the hub and the adapter spacers have new bearing races in them for the r6 axel

Sent from my SM-T310 using Tapatalk
 
Re: Salt City Cafe Build 1970 CB750

Looking good so far, I'm in to see where this goes, it looks like a great start!
 
Re: Salt City Cafe Build 1970 CB750

Ok so a little update. Not much as I'm waiting on some things at the moment.

I foind this interesting metal polish in our cabinet. I'm not sure where my dad found it but its a powder polish for use on surgical instruments from what I could gather. Anyway it worked awesome. I wetted some 0000 steel wool and polished and then dried it and polished more with dry 0000 steel wool. Results were pretty cool




Also I think I have decided on color and leather for the tank and seat. The leather will come from a couch cushion that we saved from an old couch of mine and the color is a deep cherry pearl that is a mopar color they useon the new cherokees. Kind of a bad pic but its more of a sneek preview anyway.

 
Re: Salt City Cafe Build 1970 CB750

Finally got a break from work so I could work on the bike. Today was just a throw it together for a mock up day. I needed to get it on its wheels so I can find the position for my rear sets and get my seat height.

Gotta tell ya the diet this thing went on really changed it. Even without tires and just stationary it feels a ton lighter and more nimble. I really can't wait to ride it.

Anyway onto the part you really care about, the pics.











And finally one with both my toys in it and the obligatory hipster instagram filter
 
Back
Top Bottom