Refurbishing the 1976 CB750K Honda Four

Here we are with another episode of tweaking that old 1976 CB750K Model Honda, she has been sat for so many years, I was initially just going to get her running and sell her, but I have grown attached to this machine and its my best year personally, so thought I would remove worn out parts and fit brand new ones. Still a ways to go and I shall blog as I go along but – Eventually this will start to look like it did when it came out from the factory. Except the paint as that’s a really expensive process these days but I may even have a go at that later who knows, so stay tuned….

I didnt like the patina on the footpegs, even though this particular machine only has 17,000 Original miles on her, she has sat many decades in a Back yard and the eliments have taken a toll on any of the parts and brightwork, you can actually see that the foot peg rubber has no wear at all, which is more validation of the low milage, but I wanted to fit some OEM parts and here is a set of New pegs that I will fit to the bike.

The same thing goes for the rear brake, it had heavy rust pits that even I could not be able to polish out, so I thought I would buy an OEM genuine Honda one and that will help clean up that area that does get neglected over the years on these machines.  Not cheap but rechroming would of been even more expensive, so this was the lesser of two evils.

 

The Original Kick starter also has pitting, so I managed to track down an original New Old Stock one and later on I shall probably get the original one stripped and chromed again but not right now.

The Honda should start to look like it originally did when it rolled out the door all them years ago and I am enjoying the time and effort to get this to where it really needs to be.

I removed the old clutch lever and thought I may as well address that issue with a New version and that will clean up the handlebar area somewhat as many people leave that part of the bike and I always notice that.

Now that looks a million times better and with NOS grips too I am more than happy to get on with another part of the bike now, I am in no rush at all with this k6 and when completed will offer it up for sale.

The poor headstock always gets left out, the steering stem nut and washer was begging to be replaced as well as the steering pinch bolt, I could not leave the bike with these parts like that.

I try to use as much Genuine Honda stuff as I can lay my hands on and this is the case right here, it is fantastic quality and you know not only will it fit, it will last many years too.

So, another job done and if I find anything I feel that needs sorting out I shall of course do it as I am on a roll now, although this is by means no restoration, just a revamp of tired parts.

The starter motor covers always rust as they are easily open to the elements, so I ordered a new one as this has seen better days, what do you think?

A big improvement and I could go on forever on the bike, just a few of the fundamentals needed to be addressed but I still need to rebuild a rear wheel as the original one is just too rusty to strip and re-use as its too dangerous to mess with stuff like that.  Next up is to fit the footpegs, a New old stock brake pedal and kickstarter to at least clean that side of the bike up and look more original now.

Looking very much like the bike it was originally at the factory and am pleased I went this route on this one, although still many more things I have to replace to get it to the standard I will be happy with, but each week that goes by I give this a nod of approval.

So, I will be working on removing the center stand and painting it as its looking a little weather beaten, its a big heavy part but I want to get that looking good, I may Powder coat it for long lasting life in all honesty, so stay tuned……

 

 

Honda CB750K 1976 getting a little more work completed.

I decided that whilst I have some spare time and a few parts etc I shall get into the K6 a little more and clean her up, as she has sat for so many years in a Back Garden, its only fair I revamp her a little and put her to a more Original style as to be honest, the 1976 CB750K Model was probably the best looking bike of them all and ran well.

So, I thought that I would try and clean up the lower front forks, as the factory clear coat has long gone and and as the sprinklers, hot and cold climates happen, the lower forks and anything aluminum takes a beating.

I jacked the bike up and removed the front wheel, I also made sure I used a pair of jack stands too, just to hold the chassis incase we get an earthquake here in Southern California, as 530 pounds is not so easy to pick up if its laying on the floor.

As you can see, the lower stanchions have seen better days, the pitting is caused after the clear coat gets eaten away by heat and moisture then aluminum will break down slowly in cold temperatures causing oxidization, of which you can see on the left fork lower, but I have refurbished so many of these over the years, I was not worried at all about cleaning these up to a more original look, but it does take a bit of dedication and hard work to achieve that goal, like anything else in life really.

After sanding the forks by hand, I start my process of buffing, using Block  compounds you can buy from shops, to my “Special” Secret Sauce that I have used for decades and slowly improved to get it to the standard that I like, yes its messy but that’s the reward afterwards when you see a shiny piece of art.

Its not a 5 minute process that’s for sure and the more effort you put in, the bigger the reward at the end, this is just its early stage and I increase pressure and change cutting compounds as I go along, remembering that this gets bloody Hot as you increase the pressure on the wheel.

As you can see, that is a good comparison with just a little bit of work, more to do but I am happy how this is going and people ask me how I get the finish on my Polishing, so thought I would share this with you lot today.

Yes, I wore gloves as these get super hot and being aluminum, they hold the heat for a long time, I am really happy how the forks are starting to turn out and am glad that I made the decision to pull the front forks and rebuild them.

So, a bit pf scotch pad, sanding block, then polishing will get you to this stage, I can go more but don’t want it too showy chrome looking and will rebuild these now, the upper tubes are total toast, as you can see below.

The forks at the top are always covered by the headlight ears but Honda did not take into consideration that the metal will sweat in hot and cold condition and of course rain etc can get down the forks and sit there, these forks are typical of the many that I have pulled out of the bikes over the years, so a common problem.

I believe Honda went cheaper on the chroming, using less on the forks as you don’t see it and putting money into the Motor, as I have seen hundreds like this and that’s always been the look when you drop the forks at the top. But I have a Replacement set of aftermarket ones ready to go.

I have always liked Polishing,I was taught at a old 17th century Barn when I worked for Rolls Royce as a kid and it always stuck with me and its so rewarding to turn something ugly into quite the jewel.

I use my circlip pliers to fit the snap ring into the lowers, a real life saver these are as you do not want to risk scratching the chrome by using regular pliers etc.

I try to use Genuine Honda parts where ever I can as the parts are top quality and of course guaranteed to fit perfectly, as many aftermarket parts do not.

I refitted the springs and will fill with oil when the wheel is on but still up in the air, that keeps the pressure off the springs and easier to fill the forks that way and not have the springs flying out towards your eyes if you put the bike on the ground.

So there you go, forks back on and they look so much better than before. I will be fitting New speedometer cable and New Tach and speedo gauges to clean it all up at the front, but she is taking shape and will continue to revamp her as I go along.  I will be fitting Brand New 4 into 4 exhausts to the New Honda spigots that you see in the cylinder head, also New footpegs and New kick starter and brake pedal, so keep watching carpyscaferacers.com and see how we go.

 

 

Honda CB750K 1976 gets a little more cleaned up.

Well, I have decided to continue playing around with this old Original inline four CB750K series Motorcycle, and I think what I shall do now is strip a few parts off and refurbish them to a nice condition.

I think that this 48 year old girl needs to have some good cosmetics, so my plan is to clean a few bits up like: Remove the forks and polish the lowers etc, maybe new gators and hardware, after that I may fit the New 4 into 4 Chrome Japanese Made 341 style exhausts, that way you get to see how the fit and sound. I have a temporary 4 into 1 set up on the bike right now but think having a Brand New set of 341 style exhausts will set the bike off and show how good the pipes fit and of course look with a sound byte or two added for your pleasure.

Also I will refurbish the rear swing arm too seeing as I fitted New rear shock absorbers and a bunch of miscellaneous parts to many to mention as I go along, but- These parts are not cheap and this will be reflective on the new price too, I am not bothered if it sells as I can use it as a great parts getter and have fun on a low milage CB750.

So stay tuned and I will of course document this as I go along, I may have some more bikes coming up for sale so keep checking back with me on the website, this will be a fun adventure, not a show bike as I don’t want to strip to the frame right now but maybe later but I do have a few K0 bikes I will try and get back on the road.  So thanks for looking and hope the K6 will look somewhat factory when I have completed it.

Once that is done I shall get a few miles on it and ride it down to the beach etc and just enjoy the good old CB750K series inline Big Four Japanese Classic machine.

 

 

Formula 1 Livery CB750 SS Honda Project

Well, I have been playing about with the F1 project and have decided to fit the good old Rocket 4 seat assembly and then upholster the seat with traditional style snaps, just to show the times of yesteryear and the old school seat set ups of the day.

I am happy with the way it looks and it feels super comfy.plus your legs do not foul the air induction side scoops of which I really like now and want to try and represent some of the Ferrari’s styling, I still need to get all the body work wrapped but locating a company that knows what I am on about is not easy, my guy I use has flaked so its off to find someone who wants my money.

I will be looking forward to firing this old girl up and taking her for a spin about where I live as it was made for Motorcycles as we have miles of winding roads with off cambered corners and chicanes etc, this will be a blast to ride.

I went with a 17 LED stop tail light to give people lots of warning that this machine is there and again, give an old look with modern internals and this really does suit the bike, I still have to fashion a license plate bracket under it but thats later on.

Starting to look like a Classic Motorbike again and got plenty of hand waves and beeps from people driving by over the weekend, so that’s something positive eh?

I’m getting closer each time I do something and I believe the only hang up will be down to the graphic company, if I can’t find one that can do the job them I will have to paint it and letter it by hand and thats a time consuming job but we shall see.

Just thought I would do a little blog to let you know what I have been doing lately and hope you are enjoying the build????

Scuderia Ferrari F1 styled CB750 Creation

I have been a fan of F1 Formula race cars since I was a teenager, regularly watching the races on our 3 channel television, I loved watching these guys in the JPS Renault Lotus and my First Motorcycle that adorned the Motorcycle world was based on Emerson Fittipaldi’s Black and Gold F1.

Now, over half a Century later, not only did I create a fun Cafe bike representing the JPS styling, I am now going to create another F1 livery Motorcycle for my Brother, but this time in the Ferrari F1 colors.  This will not be a replica of that machine but will have the accents of the Italian Stallion beast that runs the circuits today.

I still have a long way to go but as long as I get the look, I shall be more than happy, this has lots of work to be done still like seat set up and some accessories as well as the color scheme but this time I shall not be painting the bodywork as ferrari and all F1 race cars are wrapped, so this will get a new skin and hope I can pull that look off?

I am incorporating Airduct’s into the side covers and will make a custom seat and this time will have removable Pannier bags that hang onto the outside of the machine to give it a wider look from the rear.

The other thing is i like to mix old with New, so I shall have a Satellite GPS speedometer with a digital Tach built inside, set inside an old Vintage Race Car Alloy Cup that was attached to the steering column many years ago and had a Tach inside it.

I am making stuff up as I go along, some I shall keep and some I shall redesign most probably, but want this to be a cool ride that I will personally ride upo where I live as its a winding set of roads with many turns and off cambered switch backs.

This will have a new exhaust system as I hope to make in stainless and am using BSA silencers to give a little British feel and sound to the machine, that’s the cool thing with Custom machines, the sky is the limit and you can change to what ever you feel is to your personal liking.

As you can see, to keep with the Italian feel, I am using Tarozzi rear sets that came directly from Italy and will make this so much more comfortable to ride and change gear quickly.

Still a long way yo go right now but its taking shape and quite excited at the form that she is making right this minute and wanted to share with you guys and gals, I shall keep you updated on this creation and hopefully not too far away I shall be cranking gears in my area and grinning from ear to ear.  Stay tuned……………………..

Wet weekend, so thought I’d rattle on about what’s happening in the Barn and Blog about things I like.

Well, we are getting another downpour in Southern California, something that we really do not get much of down here, the last storm was the worst in over 100 years but i think that this weekend storm is just light rain, just hope the hills hold out a little longer.  But when it rains its keeps people inside, same as me, I have 16 bikes to try and put together in my own time frame but I am still working on getting the inside of the workshop into a usable area and not just storage. But, when you have crap weather, it gets you motivated to get on with a few jobs you have been putting off.

This brings me to Sean Skinner of Virginia’s MotRelic, he was twiddling his thumbs and came up with a unique concept of his old Orange Krate Schwinn push bike and bung an XS650 motor in the frame, something I had done back in the 80’s in the UK with Moped engines, but this is on another level and thought that I would share.

In 1968 when the Orange Krate got its name, it hit the streets running, well peddling to be precise but the Hot Rod styling oozes Custom features and for less than $90 back then you could own one of these Kustom Push bikes.

“Schwinn introduced the original Sting-Ray in 1963 after the company realized kids in California had been customizing their bikes to look like motorcycles. Bikes were fitted with 20-inch wheels, elongated seats, rear ‘sissy bars,’ and ape hanger handlebars.” – Schwinn Bicycles:

Sean Skinner –  Builder of some of the most popular machines I ever had the pleasure to feature, had the idea to take things in the opposite direction: to build a motorcycle based on the 1968 Schwinn Sting-Ray Orange Krate.

This was no easy task, I have tried many engines in push bikes and most have failed or, after a few miles I grenaded the motor, the frame or the whole thing, so a lot of thought, effort, sweat and tears went into the designing of this machine to accept Yamaha’s Triumph Motor, the infamous XS650 Twin.

 

Sean purchased a frame jig, cut the neck from a stock XS650 frame to retain a valid VIN number, and used a ring roller to begin obtaining the curved bends of the frame. As you can imagine, almost everything on the build was custom-fabricated. Sean takes us through the entire build process below, from the creation of the Banana Girder forks to the iconic banana seat, complete with spring-loaded sissy bar shocks like the original!

 

There’s the bicycle-style two-gallon tank, cut and shaped from a Virago unit, and the custom exhaust that seems to vanish into the curves of the frame. The engine itself is XS650 perfection:

“Fully polished, big fin cylinder, rephased by Hughs Handbuilt, electronic ignition and tons of chromed parts…”

 

“A fun whimsical build that is art in motion and nothing else. A childhood memory of wacky bicycles with squared off slicks that didn’t handle well but were there for fun. When you could customize them with lights, speedometers, wheelie bars, sissy bars, and anything your child heart desired. This bike is for that.”

Such a stunning piece of work that many could try and not come close to the flowing lines that this Custom piece exudes, a creative signature from the master builder and the more you look, the more you see.

Where to begin…

Back in 2016 I had an idea to build a motorcycle designed around the looks of a 1968 Schwinn Stingray Orange Krate. Now let’s add to the mix that I have never built a complete frame before or lots of other parts of this build that follow. I acquired a clean stock frame that I cut the neck off of so I could retain the proper VIN number. I installed the lonely neck onto my recently purchased frame jig and then I started to brainstorm how I wanted it to look.

 

I started the frame process by bending and building the lower hoop around the mock-up engine cases so it could sit centered on the jig and give me a nice base to build from. The Stingray has a very curvy frame that flows from every angle. Achieving the correct look and bends required the use of a ring roller. This tool let me slowly roll the straight tubing into any radius I needed. To help me with finding what radius looked the best, I secured some PVC tubing to the axle blocks and curved to the shape I needed and then copied that in steel.

Once I had the frame tacked up and resembling the Stingray photos I had, I went ahead and welded the whole thing up. The two frame pieces that follow the shape of the gas tank are removable and serve as the upper engine mounts and frame strength.

Once I was done with the frame, I hit a stumbling block and the frame sat for four years in my basement. It was either the lack of money for all the engine parts or the lack of confidence in building the front end. Probably both. As time went on I never forgot about the build; it just wasn’t top priority until one day when I was surfing Marketplace and stumbled upon an XS650 that a good friend had built. He was selling a bike with the perfect engine for my build. Now when I say perfect, I mean, fully polished, big fin cylinder, rephased by Hughs Handbuilt, electronic ignition, and tons of chromed parts. And just like that the build had a fire lit under it once more.

With the stress of sourcing all the parts for an engine floating away, I could focus on the front end. Rake and trail are the most important things to consider — too much or too little and things get…interesting. I had to get the frame at the proper ride height so I found a 21-inch rim, a perfect Shinko to use for mock up, and laced it to the XS650 hub with the help of Buchanan Spokes. Having the comically large wheel mounted to the frame really allowed me to see my vision in real life. It’s adorable.

While knowing how the front end should look, getting it to reality is a different story. I scoured the internet looking for a company that has built the Banana Girder in the past. The front end is not a new design and it has been used many times. I found a fab shop that builds them for Harleys, but they would be way too large for this build. I was able to get them to sell me the upper and lower “trees,” which included the stem and center pivot parts. The rest was on me to design, fabricate and build.

While walking around a swap meet I ran into my buddy Dave. He handed me a skinny little 17-inch wheel that also had a tiny drum brake. It was the perfect front wheel for this build. Now that I had a front wheel to build up from, I got to work figuring out the geometry and curves needed to get to that point. Once I had the measurements, I built a crude jig to hold the three pivot points on each fork leg, assuring that whatever happened in between those areas, the pivot points would be symmetrical. I found a stout little mountain bike shock with adjustable preload and rebound to handle the road. Spacers were machined and bungs were threaded and drilled. The front end was coming together!

Next I had to figure out handlebars and how to attach them to a very non-traditional upper tree. I machined some studs and centered them perpendicular to the stem. Now that they are welded, I cut up a new set of ape hangers to position and weld to the upper tree.

So many things were handmade for this build. One thing that was a challenge and fun to do were the lever perches. Cut, milled and drilled from 1/2″ steel. I created a clean and tidy part that once welded to the bars made the bicycle theme come alive. Venhill made the cable kits that worked fantastic and gave a vintage look to the build. With the front end wrapped up and bars in place, it’s officially a roller!

 

On to the gas tank and seat. Trying to stay in the lines of the Stingray, I had to make the gas tank a shape that flowed with the frame and still held at least two gallons. While sitting in the shop I noticed an old Virago tank hanging on the wall. I could see from the side that it had a similar curvy shape in the side of the tank. I made a tunnel and base to the new tank that followed the frame. Once that was in place, I cut up the Virago tank and found the shape I needed in two pieces. More sanding and test fits than I care to admit, I had the tank parts tacked into place.

The seat had to be the iconic banana seat. Aluminum was used and I cut and shaped it to flow with the tank and flow with the frame. I shaped the foam to compliment the base and flow with the tank. Schwinn used spring-loaded shocks on the bottom of the sissy bar, which allow the seat to move and give some cushion over the bumps. I had to reproduce this in my build.

Mcmaster Carr carries all kinds of springs and bushings to make this dream a reality. After measuring, I ordered everything I needed and machined all the parts to create a full-size version of those seat shocks. I had to also make a pivot up front to allow the shocks to work.

I can’t believe it’s actually all coming together. The bike’s fabrication is nearly complete. The rear brake pedal mount design that incorporates the switch was a cool project. It uses a Magura brake lever switch that keeps the wiring small and tidy. The foot peg mounts were found at a swap meet. I think they are early Sportster or Shovelhead pieces that looked so much like pedal cranks I had to make them work.

The final project to tackle was the exhaust. At first I wanted to make an exhaust that doubled as a chain guard, but then realized I didn’t want to see the exhaust and was sure it would ruin the look of the bike. After a long while of staring and mental anguish, I decided to have the exhaust follow the frame from the subtle curve at the front to the full length curve the rear frame has. It made the exhaust somewhat get absorbed into the frame. Some people don’t even notice the exhaust until they’ve looked the bike over for a while. I guess that means I succeeded at making it blend in and not take away from the bicycle look.

The final project to tackle was the exhaust. At first I wanted to make an exhaust that doubled as a chain guard, but then realized I didn’t want to see the exhaust and was sure it would ruin the look of the bike. After a long while of staring and mental anguish, I decided to have the exhaust follow the frame from the subtle curve at the front to the full length curve the rear frame has. It made the exhaust somewhat get absorbed into the frame. Some people don’t even notice the exhaust until they’ve looked the bike over for a while. I guess that means I succeeded at making it blend in and not take away from the bicycle look.

 

This is the first bike that I have gone all in on with chrome. Don at DGM Chrome Plating in Philadelphia, PA handled this tough job and all of my parts look unreal. It’s amazing how good he and his guys made everything look.

The frame was finished in a micro flake orange powder coat laid on by the talented guys at Right A Way Powder in Middletown, MD. The orange sparkles in the sun and looks beautiful with all the other sparkly bits.

The tank paint was sprayed on by Danny Knight at Knights Kustoms in Winchester, VA. That off-white paint was mixed up to look like the vinyl on the seat, heavy flake and all, he nailed it! The “Yamaha” font was painted on with the help of stencils made by John Ralph at Quail Run Signs in my town. He’s a wizard with the program. I am a one-man shop that handles all of the fabrication, welding, and building, but I could not do it alone and really, I wouldn’t want to. It’s fun to have talented people in your corner to experience the creation with you.

Now with all the parts back from powder, paint, and chrome, I can get to work making my creation come to life. With the engine on its side on the lift, I gently set the frame over the engine and push the chromed bolts through the mounts. The rear wheel is next to install. This lets me hold the frame upright in the lift.

The front end slips on and the front wheel is put into place. I stand back and look at all these mirror-like pieces and I get very excited to see the finished bike on the ground and out in the sun. The gas tank is set on the frame and I can finally see the bike coming to the finish line.

All of the time spent designing and building has come down to this, the first start. It took about five kicks to get her going. Blame it on dry carbs, no battery, stage fright, or whatever. It started and sounded amazing. The gamble on welding baffles in the middle of each pipe paid off. She sounds glorious!

Once I checked everything over, I didn’t hesitate to fire it up again and go for a ride through the neighborhood. Smiles for miles on this thing. It handles well and rides very nicely. 100% happy with this build and I’m excited to show it to all of you. Since writing this I have been to the Mama Tried Show in Milwaukee and have been invited to the Handbuilt Motorcycle Show in Austin, TX. Y’all come out to see it in person!

You have to look at this bike and smile at the fact that it was built from inspired dreams of the Schwinn Stingray Orange Krate. A fun whimsical build that is art in motion and nothing else. A childhood memory of wacky bicycles with squared off slicks that didn’t handle well but were there for fun. When you could customize them with lights, speedometers, wheelie bars, sissy bars, and anything your child heart desired. This bike is for that.

Thanks for reading,
Sean Skinner

A great ride for sure, like back home in the UK, we had Raleigh Chopper push bikes, but i am thinking of my mate Alan Oller up in the Bay Area as he loves XS650’s and this would be a fun project for him next.

Hope you all have a great Easter weekend and thanks for reading.

Until next time, get them grinders out and start having a go at something constructive.

 

 

Few More Exhaust systems available for your CB500, CB550 and CB750 SOHC

Well, the old year is almost up, a New year just around the corner and to be honest, I am looking forward to it, new challenges but new idea’s and New parts to be offered for a number of machines, something that I do like to do and offer to everybody.

So, literally a Truckload of exhaust systems finished and some will be Ceramic coated and some will be Raw steel, as many like to paint or wrap them for them selves.

I ship all over the world and continue to help my Customers, I of course build the Motorcycles too, I make sure they fit and these do not leave my place until I am happy with them.

These systems are made right here in good old CALIFORNIA and I have been offering these for 23 years, affordable and work and sound awesome, a tried and tested formula that I have had many repeat customers.

 

 

Merry Christmas from Carpys Cafe Racers

Jeez, another year gone and soon beginning a brand new one.  Well, I hope that this finds you all well and happy?  I wish you ALL a very Merry Christmas and hope that you get time to relax and fit the new parts to your ride. These last 12 months have rocketed by for me but I have a few more new parts in the making and hope to show them soon and will showcase them first.

Look forward to gearing from you and l hope that I can help you create the Motorcycle that you want in 2024.

Thank you all for all the business and I continue to push the proverbial envelope in more parts and some special one of Motorcycles that I will be selling too.

Here is a movie ya might want to watch whilst you are off for a few days.

Another movie if you have a Rainey day and want  something to help the wet weather get by faster.

Helping you with New Parts create your ride

Hard to believe that I have been wrenching here in Southern California for 23 years, I continue to make parts for Motorcycles and Hot Rods too, it is nice to be busy and I am a very Positive person with a massive work ethic that I very much doubt I will ever stop from doing.

So I am hoping to come up with a few more parts and of course, offer them on my website, there may be some other things I will be doing like video’s etc to show you how things fit etc, soon as I have got my workshop sorted out to how I want it.

Fun times ahead but still love building Custom Machines.

Well, the Storm has left Orange County, more rain than anything to be honest, but at least over the next few weeks it will get a little cooler, but after September is when I love the temperature to turn wrenches in the Barn.

It’s always fun the first time you fire a Machine up after putting a load of parts together and the final product is revving away and begins a new chapter in its life as a Custom created Motorcycle.

Soon I shall be creating a few more Machines and will be up for sale on my website, so keep checking in from time to time, of course, I will add a video of anything on here, so you can have a closer look etc.

Have a great week everybody.