Honda CB750 Super Sport Classic Cafe

I recently came across some old CD’s that I had tucked away in a drawer, glad I took some pics of some of the motorcycles that I have created, they say if you put them on the internet, it’s there forever, but that’s incorrect as I had quite a few bikes on there and cannot find them anywhere, so I was stoked to at least find a couple I had created and thought that I would share with you.

The bike started out as a stock 1978 machine that had seen better days and been neglected for a few decades, this was a good platform to use as I knew the Motor would at least kick over but not fire, so, with that in mind I set about pulling the bike apart and going a little out there with the color, the reasoning for this? Well I loved the old Yellow on the 400 -4 Super Sports ad thought I would go with that color ad it would stand out in the California Sun.

Taking apart in my old garage, where space was not infinite.

The Bike belonged to a Customer and he wanted me to go way out there and make this a head turning machine, if I remember correctly he was a Rocket Scientist, so I had to come up with something that would Blast Off!!!

Everything apart and now its time to see what to do, I started with the frame first, as that needed to be cleaned up then stripped before I could get it ready for any sort of paint.

Happy with this now, I have to media blast the frame to remove old paint and of course any rust etc, file any bad welds and spot weld back to good again, then it will be time to take to Powder coater and get some Sunrise Yellow on this to make a big statement in chassis color.

As you can see, this really is a bold statement- I really wanted this to turn a few heads for my Client and he has let me go ahead with what I ever i feel this machine may need to give it a wow factor, remember, this was about 2006.

Motor stripped and rebuilt with New cam Chains, belt slider and clutch etc, this will be like a New Machine when all back together, but- A long way to go as yet.

Like a Jewel now and ready to go back in the frame when I have completed it to a rolling chassis.

So, the Motor is now all painted and polished and awaits me to lift this 230 pounds of aluminum and throw it into the Duplex Cradle frame of the SOHC, but I still have to get that frame rolling, what I need to do is finish the chassis so its a roller, then I can get this lump back in the place it originally was placed in 1978.

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I rebuilt the rear shocks with all new stainless steel hardware as I don’t want this to rust like it had done previously, and will take my time getting this together on my own.

I went another route this time as the 1978 Forks were in really bad shape, so I used a 1976 CB750F front fork set up, polished the lowers and fitted new tubes and completely revamped these with Progressive springs etc, this is a nice set up and very clean compared to what was on there.

Frame is back together, using an old 1976 front wheel to make it a roller as I shall be building new wheels for this bike, I also put pipe insulation on the frame so I don’t scratch the paint when I am fitting the motor.

She is now a rolling chassis, with this I got the bike off the bench and onto the floor then into the driveway, I used a 1976 rear wheel to fit in the back until I have made new rims up, but now is the time to see if I can fit this engine and that’s the last of the heavy lifting.

The Motor is now in, with the help from my trusty cat, I also fitted vintage speed equipment parts on the bike for that added bling, as well as new switches on the Ace bars and GT grips for that Nostalgic look and feel.

Fuel tank was a different matter, this time I wanted to fit an earlier K series fuel tank, so used 2 gas tank and sectioned them as I wanted a 5″ stretch for a long road race style petrol tank of back in the day, took a long time but sure looked great when completed.

It took quite a few weeks to get it right and I had another supersport frame I could use for a mock up so I didnt scratch the paint on the chassis.

Once that was all sorted I had to do the body work right here at home still as I worked in my garage all the time, lucky my neighbors are out all day so can bang, grind and sand with no interruptions at all.

Final fit of the gas tank and i like the stretch, not too much but just enough and an extra 2 gallons capacity is always good right?

 

I do not like 1977-1978 carbs and wanted to fit earlier versions, I only had old snotty ones in boxes that I had picked up at swap meets and yard sales, so a full rebuild was needed to get these to how I wanted them.

All cleaned up and synchronized and looking forward to fitting these to the motor and way easier and faster to tune than the flat tops.

I polished the original wheel hubs and used stainless spokes and attached them to CB750 Automatic rims as they are aluminum, bunged on some classic tread rubber and these look like they were from the factory.

This time I went with my CR style seat base and added a rear fender, fitted a Yoshimura exhaust of mine to give this machine more bark.

The bike is sitting well on those Automatic rims and glad that I made the choice to change to that as I have never like the 4 spoke set up that came on the 77 and 78 models, the Comstars as they were called were tin looking and I think, very weak.

Making parts fit that were not available for this bike always takes time and of course many failures, but I persisted and got the bike to where I wanted it so everything flowed.

I had an original Dunstall front fender that used to be hanging on the wall, I wanted to use it as it was from back home and very fitting it looks to.

I used the old Honda Super Sport gas tank decals from an old 400-4 as thats the color I chose for it and very cool it looks too, the bike was a hoot to ride with tons of low end torque.

It was a learning curve and I enjoyed the challenge on this bike, this was many years ago and I would change a few things now but this was a fun creation that was fun to ride.

You cannot lose sight of this in a parking lot, the color is loud and proud and the Customer loved it, a great stance to the bike too with that big long tank too its just smooth.

It may not be your style but I was super stoked to have a go at changing the sad tired original bike and give it a brand new life as well as a brand new look too.

I just wanted to share a few pics of this bike as I had lost them many moons ago and glad that I could load them up on my website for you to have a look at.

Thanks for taking your time to read my Blog on this Super Sport, of course I still make and sell parts and build Motorcycles, I always will as its a passion still for me.

HONDA Super Sport Comes to shop to get running again

I never know what may turn up at the workshop these days and this time I was surprised to unload a pretty clean 1975 Honda CB750F Super Sport , this has only 8000 miles on the odometer and is a one owner machine that a Customer just purchased locally and then bought it along to me to see if I can get the motorcycle to run and ride once more.

This Honda SS had been sored away for a while so the normal things will need to be addressed to be able to get the old girl to function once more and give the new owner miles of smiles.

The bike is pretty much as stock as a rock, the only thing missing is the big Cannon tailpipe and the side covers, I make the side covers so that will not be a problem but the tail pipe may be another story, but the bike has a tiny battery that is dead, I will need to order a New one for her to be able to get this girl cranking over, but I shall take one off one of my own projects to see if I can get the old girl to fire up again after a long slumber.

It really is in good condition for its age, remember , she is now 47 years old, and I expect her to be a little stiff in places and get stuck from standing in a garage all that time.

On inspection the Gas Petcock had a lot of Brown sticky old fuel around the lever, so knew that the carburetor would be in dire need of stripping and completely overhauling to give her a brand new life once more, as the gas in California is awful, and in less a month, fuel will start to go bad and tarnish the carburetors and also the gas tank inside, causing blockages inside the fuel journals and then I have to vapor blast them to get it all clean and look like a factory finish.

I had quite a task of pushing the inline four into the workshop, as the front brake was sticking like an egg in a pan with no oil, so to free the piston in the front caliper, you have to tap it with a rubber mallet, it tells me right away that the piston has rust spots from years of sitting in hot and cold temperatures and this stops the piston from letting the brake pads fully release.

So a full strip and rebuild will be necessary to get the old girl to move freely once more, I have no worries fixing this as its a common issue due to the caliper body being an aluminum composite and the Piston is made of polished steel, the piston gets small rust deposits on the outer part and catches the O Ring and wont retract unless you bang the caliper body with a Rubber Mallet, so all New parts soon and I can get that all taken care of.

The Carbs will be pulled but may try to run the old girl using a Lawnmower gas tank I rig up and run Fresh fuel through the tank of the the auxiliary jig I made and right through the carbs, as I fear the petrol tank has some rust in it and will need to clean that out too, but I will run the bike through the auxiliary just to make sure that the engine is running ok and no issues with gearbox, clutch and maybe check for any oil leaks from the cases or cylinder head etc.

Once I remove the carburetors, I can take apart, vapor hone, Polish and synchronize to get this inline four 500 pounder purring once more, these are great engines.

The airbox is always a royal pain to remove and refit but I have done it many times, just have to be patient to be honest and plenty of WD40 at hand to ease the parts out.

Eight Thousand Miles on the bike, that’s super low, just was not ridden much by the original owner and a great find to the new person that found it by chance, stoked for them, the display cluster is in really good condition and gauges are not broken or scratched either.

 

The year 1975 saw the introduction of three F models, the 400F, the 550F and the 750F. That 400F was truly trick, with mildly set-back footpegs, a flat handlebar and a lovely megaphone-styled exhaust. However, the company decided to go the conservative route with the 750, apparently more concerned with bringing four-piper types into the sporting world than with luring crossover owners from the Ducati realm.

This is partially a retelling of the making of the most significant motorcycle of the last 50 years, but it is a story worth hearing again. There was nothing new about disc brakes, electric starters and overhead camshaft, transverse-mounted, four-cylinder engines in 1969—just that Soichiro Honda had made them cheap and reliable. The CB750K was a winner from when it left the starting gate, but everybody knew that winners get old.

Which is when the styling artists got their orders. The K was OK, and would remain the mainstay of the lineup, but something snappier needed to be on the showroom floor. Not too snappy, mind you, not like a Laverda 750SF nor an MV Agusta 750S, but something to provide at least the image of snappiness.

Call down to the muffler department and tell them to make a four-into-one exhaust system. Have the sheet-metal guys stretch that gas tank out a little, not much, just a smidge to give it a slightly elongated, racy appearance; and hide the gas cap. Then tell the seat people to make a little fiberglass extension to fit the back of the saddle, sort of a faux bum-stop that some single-seaters had. The fast look was born.

Of course the frame and engine departments were given their chores. The chassis mathematicians figured that Super Sport riders would go a little faster than those on the standard K, so they gave the fork an extra degree of rake, to 28 degrees. Along with 3⁄4-inch more trail. And left those ugly gaiters off. Built a slightly longer swingarm, which added up to a 57.9-inch wheelbase, 6⁄10-inch longer than on the K. This meant that when the F rider was trickling along U.S. 2 in North Dakota at a modest 100 mph, the bike was reasonably steady.

Power was another matter. Honda did not necessarily like to advertise horsepower ratings, but dynamometers don’t lie—unless they are hopelessly miscalibrated, in which case it is not lying. The F put out a good 10 percent more ponies than the K, and while some of those 58 horsepower, at 8,000 rpm, could be attributed to the freer flowing qualities of the four-into-one exhaust, the rest came from a slight boost in compression ratio, using domed pistons, up from 9:1 to 9.2:1. And the timing specs on the valves had been altered to adjust to the new exhaust. Also the carburetion was cleaned up a tad, in those halcyon days before the EPA, with the best of intentions, made a botch of things.

The F, with a full 4.8 gallons of high test in the tank, registered slightly over 535 pounds on the scale. Which was 10 pounds heavier than a K, although the F had three less mufflers. Possibly a little extra metal had been included in order to strengthen the double-cradle frame, with triple tubes, a main and two auxiliaries, running under the tank.

Put the leg over the saddle, and the rider sat pretty high at 32 inches. Pull the choke on those four 28mm Keihins, turn the key, and choose between pushing the button or kicking the starter; 999 times out of a thousand, the button won. Vrooom! The muffler had a mellow, unobtrusive sound, the engine warmed quickly, and the rider was away.

Twenty miles down the road, the Bridgestone Super Speeds were heated appropriately, and the twisties began. Tire technology was still pretty basic 40 years ago, but the 18-inch rear and 19-inch front spoked wheels each had a disc. Hit that first sharp left hander at a rapid speed, and the F felt really good. However, coming back at the same speed, the corner now a right hander, there would be a Grounch! as the collector box located beneath the right footpeg touched down. A little help could be had by getting out the toolkit and maximizing the preload on the shocks, but even then, a 200-pound rider was going to mar the chrome. The owner of this CB750F has changed the shocks to S&W, a distinct improvement.

Other than that minor drawback, the F did live up to its sporty intent. It probably was the best-handling of the Japanese 750-plus fours of the time. And got better.