1982 Honda CB900 Custom Cafe

Bolshevik

New Member
Hey everyone. Well, I am in the midst of assembling my cafe. This is going to be my 1st cafe build that I have ever done. It has been a long process. Although not new to motorcycles, I am new to the cafe scene. It all began in April 2012 when I purchased a 1982 Honda CB900 Custom for 700.00 out of an overgrown swampy orange grove. She was filthy, covered with dirt, Spanish Moss, and full of spiders........ugh. A buddy of mine and I drove out there to see her and once I laid my eyes upon her......she had me. It was love at first sight. We threw her in the back of a pickup, dirt, spiders, and all....gave the guy 7 Benjamins, and away we went.
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Got her home and unloaded, then gave her quick douche with Dawn dishsoap and a garden hose, let dry, then sprayed with Ortho ant/spider/roach killer....I never say so many critters run!
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I dropped in a new battery, a full can of Seafoam, fresh oil and a filter, sprayed carb cleaner into the maw of those Keihens, and hit the start button.....she fired!. She hadn't run in about 2 years, as I was told. So, I let her run for a few, smoking like an old industrial smoke stack, then added 93 octane gas to her belly. She ran rough, as the airbox was off, but, she ran. I reattached the airbox and actually took her around the block. She ran very rough, due to cracked insulators.

So, that night, whilst sitting in the driveway, my father in law (who has ridden since the early 1970s), said "You know, this would look really cool as a cafe". I said "What the hell is a cafe? You want it to speak French and serve crepes?" He said "Son, let me tell you about the Ace Cafe and the Ton-up boys.........." This was the beginning of my education to the Ton-up life. That night forever changed me from the cruiser style biker I was to something a little more bad-assed and a lot faster. That was the night we decided to build a CB900 Custom Cafe Racer...................... I began researching as much as I could find about Cafe Racers. We decided to do as much of this ourselves as we could, to keep with the tradition of the Cafe Racer.

The first thing we did was get 2 plastic bins. One being parts we were intending to keep, and the other was to be recycled salvage. As the recycled salvage bucket was filling, I was beginning to think that there was going to be nothing left to reassemble.
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When she was down to the frame we threw the motor onto the bench, and I began washing her down. Everything was scrubbed with dawn dish soap, rinsed, and let dry in the Florida sun.
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Then, while the parts dried, we began thinking of a color scheme. I really liked the old Honda red/white paint scheme. My father in law suggested the Ducati Monster red for the frame, I pointed to the Triumph tiger sitting in the shop and said "I love that Ghost White for the tank, fenders, and side covers." We both said together "Flat black motor." The frame and motor mounts were sprayed in the shop with the succulent red, and the tank was painted white.
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Tank primered
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Tank painted
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Then I began cutting the chrome fender to shorten it up a bit. We chose to not cut the rear frame as we found an old original Honda seat and my daughter Rachel (7yo) is excited to ride with Daddy. I may be putting one on later, but I think it will be a challenge with the back of the frame still attached. I may end up cutting the frame at a later date, unless another solution is found.
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Using the end shape of the original fender to reshape the modified fender
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Final shape before the grinding wheel
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Only about 9 inches of fender left
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I got just a tad bit excited and slapped a few pieces together to keep that mental image, that dream alive. So, here are the Shocks were replaced with Nitrogen gas shocks I got on ebay for 69.00 (they were 129.00),
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carbs rebuilt for less than 80.00 for ALL four, also, 4 new Honda insulators. I am currently looking into a stage 3 jet kit as i am discarding the airbox and going with pods.
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i found an exhaust at the Webster Swap Meet off an older CB750, 4/2 to replace my 4/4. I will use my original headers, cut the 750 exhaust, expand the pipe and weld into place. They will be wrapped. The pipes end right at the back of the motor. I paid 20.00 for the exhaust at the Webster swap meet. Couldn't go wrong with that price.
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The aluminium side covers and valve cover were so badly oxidized and peeling from the factory clear coat, so they were all bead blasted and hand polished to a mirror finish using 3k grit paper and Mothers polish, and a Dremel with a polishing wheel.
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Each and every fin on the entire engine, tranny, and oil cover were sanded to bring out the aluminium and polished to a mirror finish. I even went so far as to strip and polish "gear oil", "901cm", “Hi Lo ”, and the gear positions on the left side of the motor. I know, a bit much, but I figure if I have gone this far, why not go all the way and do those little things that I notice.
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I also obtained a Lucas tail light for about 30.00
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Not pictured are the 1983 Kawasaki headlight and right controls/brake and Master cylinder I obtained for 20.00, along with a set of Mikuni carbs that need to be completely redone. The original MC is very brittle, and since it came with a Vetter fairing, I needed a headlight. I also picked up some black aluminium headlight brackets.

So, now we are at the point of reassembly. I just acquired a lift and the frame is on it. I am waiting for a few parts to be bead-blasted, I need to paint the front and rear fenders, and now i cannot find my steering bearings.....grrrrrrrr.....So, I will have to order a new set. ugh, I know i will find them once the new ones arrive. Hopefully, I will be inserting the motor, drive shaft, and final drive this week. Once the bearings come in, the front end will go on. I was considering using a GSXR front end (for the inverted forks....and yes, it will go right on), but I may just use the original and install a steering damper. Also added are Clubman bars, and my wife bought me a set of mirrors!

So, any thoughts, ideas, or comments will be greatly appreciated. More pics to come soon....Now that it is cooling off, the shop will not be as hot.
 
Whenever I see the pics of the bike before this project began, all I hear in my head is "Purple Rain, purple rain....." LOL!
 
I am going to need to acquire rear-sets. Anyone have any suggestions which ones will be my best choice? I am sure some modifications will be needed....
 
1982 Honda CB900 Custom Cafe

Cool, cb900s scoot pretty darned well. Wouldn't mind one for my next project.
 
Well, I haven't posted in a while. But, I have been working on the bike. I picked up a few pieces from a 1983 GS650. I am using the headlight bucket, front brake, clutch, and light switch (as it gives me the option for on/off headlight). I am also "re-shaping" a 30 year old Corbin "Atomic Foam" seat.

THE SEAT:
Since I did not want to cut the frame, and they are so darn expensive, I opted to 1. keep the original Honda seat (as my daughter is really excited about riding), and 2. make my own seat. In keeping with the idea that the original cafe racers were all hand made, and they didn't go to the store and buy all the parts they needed, My father in law and I decided to use my wife's new carving knife (electric) and on Christmas day, we began cutting. As a side note, I found it is easier to ask for forgiveness than it is for permission.....(Yes, the knife was cleaned and ready for use for lunch/dinner) LOL! So, Once we had the shape, we smoothed with the knife. I had a gel seat I used to use on my cruiser that I got from Walmart a couple of years ago for like 20.00. I thinned the foam down as low as I could get, then we placed the foam on the seat and began trimming. Now, I will locate a set of brackets and have the local cobbler cover the seat in leather. I don't think it looks too bad.

THE HEADLIGHT:
This bucket was a mess when I got her. I think she was submerged in water. It was rusty as all get out. I dis-assembled the bucket, wire brushed it out, and sent it to my local bead-blaster. Once that was done, I used a "self-etching" primer. 4 coats later, I applied the white topcoat. 5 coats later, the 2 coats of clear coat. I threw the bucket and ring in the back of the truck and used it as an oven to harden the paint. (Love the Florida sunshine). then I ordered the innards from a supply house. Those came a week before Christmas. the first thing I did was go to Lowe's and replace all the bolts and screws with Stainless Steel metric. I also replaced all the speed/tach hardware with stainless steel. I did have to make my own long screws with SS thread stock, cut to length and SS acorns. Not too bad. (the original bolts were so rusty). The 2 rubber/plastic rings that go on the bottom of the bucket were a pain to insert. So, I decided to try to soften them up a bit. I boiled them briefly to make them pliable and inserted them into the bottom of the bucket. about 3 mins in boiling water and they were soft enough to maneuver in place. My Father-in-Law had gotten me a set of F/R directional. These mounted perfectly into the threads for the bucket mounting bolts and gave it a tight look. Also, the rear fender bolt holes accommodated the rear set of blinkers. (I will post pics soon, my phone and computer are not agreeing at the moment.)

Now to do some wiring and hopefully to get the motor installed by this coming weekend. after that, the pipes and those ....ugh....Comstar wheels.........what to do....what to do.....
 
Stage 3 jet kit?? Those carbs have a reputation for being next to impossible to jet correctly for pods and modified exhaust. People far more skilled than I resorted to back bleed tubes and drilling new passages to get mid range back in check.

Do you have a link to that jet kit ?
 
Well, it has been a long winter in Florida. LOL! Updates: I have been working slowly on the CB900 Custom. here is what is done.....she is together, motor in. I did go with a Dynojet stage 1&3 re-jet kit. Did it myself. Easy as all get out. A Mac 4/1 exhaust was installed and Moxi air pods were installed. WOW! A buddy of mine (a mad scientist of sorts) helped me fine tune EACH carb. she starts right up, runs at about 1,00RPM, touchy throttle response, and will peak out at 10,000RPM and no sluggish spots in between. The only thing left to do is rebuild the fuel petcock (which I WILL do), install the headlight bucket, put on the seat. I may have to ride "dirty" for a bit, as she needs to be registered, but Florida registration stickers are ALL yellow, regardless of the year. Nothing a little round reflective license plate holder screw cant cover. LOL! I will post pictures soon. i have somewhere between 1100 and 1330 pictures to sort out. Now, if I can just figure out the damn directional wiring dilemma.......
 
Ok, 1,225 pics and 1 video on my phone. This is gonna take a while. No wonder my phone was so damn slow....and I thought it was because it was a Galaxy II. LOL! Pics coming soon (not all 1225).
 
Re: 1982 Honda CB900 Custom Cafe

Can't wait to see those pictures, your bike looked like mines twin, I pulled it from a basement. 1 owner and only 4k miles, But stuck from sitting since '95. Have plans, but you dont see to many people working with these bikes since they are so big and heavy. Look forward to seeing your progress!
 
When I saw this bumped back up to the top of the list, I thought there was some progress on this build. having a red framed DOHC "C" model myself, I am interested in how she is turning out. Hopefully there will be an update soon.
 
I must apologize, as I have not posted completed pictures. She is done and her maiden was the Sunday AFTER St. Patrick's day 2013. I have forgotten how to post pictures. As soon as I figure it out, I will put some up.
 
Click on the "Attachments and other options" under the window where you type your posts and that will let you browse the pics on your computer a uplad them direct.
 
I know this is an old thread but I'd love to see some pictures of the completed project. I just picked up a 900C and am looking for some more ideas.

Kelvin Krastel
Calgary, AB

1979 CB750F
1981 CB900C
 
I've actually got one sitting in pieces. I have it for sale, but maybe I'll try to build it if no one buys it soon.

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