HONDA CB750 BLACK MAMBA

CB750 BLACK MAMBA CAFE

OK folks, here we go again with a wacky build off that will probably destroy any brain cell that was good in my noggin.

Not that there was many to start off with in the first place.

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I found a pretty much stock as a rock K4 Honda in the local rag, went and had a look and thought it was well worth the buy.

I was going to use this as a base model build for my buddy, but, he saw the 836 snarling motor with a stainless Yoshimura pipe I had, and changed quicker than a surfer on a beach full of shirt lifters.

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So, this totally stock K4 (Other than paint) will be stripped to its bare arse, and then be massaged into another Café Rcaer to adourn the roads of the USA, or anywhere in this globe of ours.

This will be called the Black Mamba, and Like a Mamba it will fight me all the way to completion, as sometimes you know right from the word go, this is gonna be a difficult S.O.B.

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I enjoy the challenge anyway, and if I could not do it, I would not even contemplate it.

The bike itself as I said earler, is all there, but the Motor has the Mexican Chrome shop in a Can application.

But, I shall be removing the motor to check it all out and clean her up as there is more crud on there than a bums dentures.

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‘The seat is in need of a good kicking, look at it will ya, it looks more like Orca the killer whale then any seat I have seen.

This will be taken off and I shall be having a Dunstall style Glass base seat on this ride.

Orca will get a swift kick right in the saddlebags and that will be the end of that.

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The tank is not too bad, this too looks like a krylon painted one and I am sure that this will all come off pretty easily.

Although I am contermplating a big aluminum gas tank that will hold more gas than a Zepplin.

I am probably going to do this bike Black, but with an added color for that old school HOT ROD look.

Maybe yellow and Black checkers, as my signature rides have that, which to me means it’s a winner.

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Now, you have seen the wire harness on the ride, it looks like a road map at the moment and I need to pull this off quicker than a Old Man does his Mr.Chubby in a $2 peep show.

I have to look into a new harness, but, these are now becoming almost impossible to find and when you do, they are just under $200.

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The Ignition system has the 70's accessory job, you know, the switch at the top of the handle bars, the guy who came up with the idea of this being cool and a great idea, needs to have his plums pulled through his mouth, slowly.

The wires are still stock on the ignition switch, and when they are moved to this re-location, all they do is stretch the thing more than an apprentice Turkey killer.

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The ignition in time will grenade itself, I have had 3 bikes do it, and my buddy down the road had a K1 that done the same thing,

And he broke down on the side of the road and would of been goosed if I wasn’t about and picked him up.

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So, to prevent the wires from disconnecting, I shall put this in the stock position, under the gas tank on the frame.

But, them brackets are harder to find than a Mail man on time.

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Other parts are things like the Gauges, they have been battered by weather and parties as well as all sorts of crud that’s fallen on them in the garage or garden over the years, so I shall give them the Café treatment.

Handle bars are about as much use as a Chocolate teapot, so they can get off and a set of my Clubman handle bars will go straight on there.

Also I have to check the front forks.- Now, I have never seen a super clean set,- ever, and these will be no exception, I bet you anything you like, that when I pull the ears off the front end, I will see more pits than a closed mining town.

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As all the rain and wet gets in the fork ears and sits there, plus HONDA skimped on the chroming on the forks too.

So, here we are with a Snotter of a K4, this is in a sad ugly state and needs to be taken apart and turned into some crazy café that someone will really have fun on.

The only fun someone will get on the bike in this stock guise right now is a clown at a Circus.

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So, off we go and hopefully by the end of this build we shall have something worthy of being a Cafe Racer.

This time I am gonna go ffor a different color scheme on the frame, my first attempt and we shall see the outcome when I get the frame back from the powder coater.

The bike was fighting me all the way to get taken apart.

Th nuts and bolts were so rusty, you'd of thought it was a toilet for every dog in the neighbourhood.

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Everything was Crusty, Musty and just held together by Snot and Grot.

It had them horrible Maier after market covers on it, they got cut off and slung right in the bin, they are as ugly as a wart on a model.

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Then the seat, that was as big as a super sized tampon and that got taken off, the tank was saved and put to one side where it will get the knee treatment.

But everything was a royal pain to undo.

Usually the motors are not too bad to get out, but this puppy was wedged in like a stow away on the Ark.

I usually try and get the Motor out in one hit, and this was not one of those usual days I tell ya.

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The best way to remove a CB750 inline four Motor is to remove more parts than a game of Operation.

Take the exhaust spigots or studs out, pull the carbs off, remembering to drop kick that ugly black plastic air filter box.

Remove all you can and then, slowly jack the motor up underneath, heres the deal.

Put a Milk crate beside the bike on the Right hand side, as the motor will only come out that side.

The Milk crate is the ideal size for a CB750 Motor to rest on.

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With no tank and seat, I straddle the bike like two dollar hooker using a cactus condom.

Then, with all ya muster, pull the motor up and then to the right, she will come out and I do this myself and only weigh 160 pounds.

Make sure you have empties all your stomach before hand, else you will end up Macaroning your pants.

Now the Motor is out, I just get right into stripping the Frame.

This frame has more coats of paint on it than the Golden gate Bride and was rough as sandpaper.

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The triple tree too was totally buggered up, the brake bolts were beyond saving and I am going to be happy to throw all the snot in the bin when I am done.

Once I have the frame as naked as a jailbird, I remove the passenger and exhaust mount brackets.

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It is a personal thing as I do not like the look of them for myself, as this will be a ONE person ride.

Smooth the frame as much as I can.

I even removed the mainstand brackets etc as they are an ugly looking site as far as I am concenred.

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Now that I have this all down to the frame and am happy about the look, I then take this to bead blasters and have the whole frame cleaned up.

Thats now ready to have the whole frame powder coated.

I have decided to make a flake Gold framed Cafe with a Black tank and seat, this will look awesome I am sure?

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I wanted to try and new powder coat this time and the Gold is a strong background, but has a metalflake finish, in the sunlight, this is a really effective finish and will catch the eye faster than a scratched contact lense.

This ride will really kick some rear and I am looking forward to getting this ride finished and see how she turns out.

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The swing arm that a few hours earlier was nothing more than a piece of snotty steel, now resembles a custom touch to this Classic Cafe.

I shall use a 5 gallon aluminum AHRMA gas tank with black paint and my signature checkers, this will set the bike off and a really great contrast.

The triple tree was in a worse condition than the incredible shrinking man.

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But I have now powder coated it gloss black and today I shall pack new grease and new ball bearings, to make the steering turn on a dime, ok, maybe turn on a dollar.

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Usually I polish the upper triple tree, as it is made of aluminum, but thought the high gloss powder coat would look as good as the lower and will set the frame off against the tank too.

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I attached the powder coated swing arm and it plopped in easily, with a little help of packing grease.

I had a stock rim that I threw on as a mock up, later I hope to fit a Chrome 16 inch harely rim, laced to a 750 Hub, but right now it gives me an idea how she will look.

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Back to the front.

I installed the triple tree's and fitted new bearings to the races and then  inserted the front forks and I previously polished by hand.

Next was to fit a front wheel, I had a stocker handy and slung that in, but I shall be fitting a Triumph Akront rim that has more class than the QE2.

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I then fitted a set of my Clubman handle bars and the frame was now rolling and ready to come off the bench and onto the floor of the garage.

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It looks as sharp as a tack, and in the sun the paint reflects like a mirror on a dessert Island.

So, whilst I had it sat there, I fitted the Powder coated battery box and tool tray, and added the electrical to the outer part of the battery box.

I had the old wire harness and it was a scabby as a  dead donkey.

The coil was added and ready to be wired up.

So, I bought a brand new wire harness and at $185 and attached it to the frame.

That is now making the bike feel a little closer to be completed and always nice to actually have a wire harness with no cuts, repairs, and black masking tape.

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I also wanted to sling some rear shock on the bike as the stock ones were snotty and had the bike sitting at the wrong height for this style.

So I chose a set of later Shocks that I had in the garage and fitted them, they make the rear of the Cafe come to life now.

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I also had the old headlight bucket and used 320 wet and dry and sanded the bucket in the kitchen sink, but if my Mrs asks, I done it on the drive way.

I applied alot of paint, as the bucket has more dings in it than a local car at a Von's parking lot.

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Still a ways to go, but now things are taking shape.

I hope to try and at least get the motor in place in a days time and then will post more pics.

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The best way to attach the motor is to rest the 230 pounds of aluminum on a Milk crate, as thats the perfect height to throw the motor in.

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You won't get many chances at lifting the motor up and into the frame as your plums will pop out of your ass if you try more than once.

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Remember to use duct tape and cardboard around your frame, so that the paint does not get destroyed, whilst  you sweat and swear manouvering the beast into the chassis.

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I always have the Motor on a milk crate, so I haven't got far to carry the engine, the milk crate is the perfect height for SOHC engine's and, if you have had your shredded wheat this morning, you could muster up enough strength to throw this lump in the hole.

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PLONK!!!!!!  It's in, this can take a few times to get right, hence duct tape on the chassis, but after abit of wiggling , this went in, then just a few adjustments like an ill fitting pair of jeans, and there ya go.

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OK, when fitting the motor, the best way of getting it right, is to remove as much as you can that protrudes from the outside.

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I removed the exhausts spigots, oil filter cover, and I even removed the valve cover breather cover.

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This will give you about another 1/2 inch of manouverability

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Now the Motor is in, I use a floor jack to line the mounting holes and plop the bolts in, then all the hard stuff is done, ya can take your time putting this together.

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Make sure you sand all the bolt area's on the frame, if you painted or powder coated it, as the bolts sometimes need to be grounded for the electrical.

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You'd be suprised how much this does affect it, as The last frame I did, I powdercoated, I did not clean the bolt holes and the bike would not fire at all as the ground was bad.

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OK, Motor is in and Now I have started the bolt it all together..

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The oil tank has to be fited and slowly the bike starts to resemble a Cafe.

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I am trying a different route this time on the exhaust system, this may not work, but wont know until I fire the thing up later on.

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This is an old 1978 CB750F Super Sport 4 into 1 Exhausts header.

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I bead blasted the old snotty chrome off of it and then painted it high temp Black.

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It was a pain in the butt to fit, as I hate them shims yo have to add on the header and into the head, but as i was fitting it on my own and in 100 degree's heat, it kinda frustrating.

But, grab a floor jack and slide it under the header, this will help you get the height and make it easier to fit.

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I am making my own muffler as usual and it will sound like a Yoshimura.

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The bike now has the exhaust on and it looks pretty trick, so, with that done I went on and attached the electrical etc.

Luckely with  a NEW wire harness, these are superb and will not break or try and work out what color the faded wires are etc and, they fit.

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The oil tank was as beaten as an ommlette, so I cleaned it up and then repainted it.

I bolted it to the frame, and this week shal make some Braided steel oil lines for this, and she will be ready for new oil in her veins.

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I still have abit of work to do here, as I need to make the 5 Gallon Aluminium gas tank fit, this is a big tank, but makes the bike like more aggresive than a road raged granny going to bingo.

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I need to get a new petock for a 750 and then drill and tap the tank to accept the Honda Fuel fittings.

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The seat still needs work and also I need a new ignition switch, as the old one was so knackered, someone had soldered it to the harness.

The new harness has the correct Round fitting for the switch.

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So, just ordered a new swirch and a new Clutch cable.

The Cafe is now looking reral sweet and should not be too long in the proicess now.

I shall probably use a triumph Akront front rim and a chrome 16 inch harley rear.

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Still need to polish the master cylinder.

That takes alot of time as they are anodized black and sticks to aluminum like a booger to a pillow.

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So, next job will be to try and polish the master cylinder and then see how it comes out, usually they leak like a weak grannies bladder.

So, best not to try on new paint, as a leaky master cylinder can cause  terrible damage to your tank and surrounding area.

I use DOT 3 synthetic, but it still is a bit dodgey on new paint.

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OK, here we go with some other stuff you may find usefull.

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How many of you have looked at your oil feed hoses and see they are as eaten up as free samples at Costco?

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But I had to get these crappy ones off and make my own.

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This time I used a set of high pressure braided hoses that are aircraft tested.

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I have cut them to size, and I then cut the old ends out of the original hoses, and got the buffing wheel and polished the ends up.

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I then fitted new "O-Rings" and fitted the hoses to the oil tank.

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These really change the look of the bike, as that is the only bad part of any SOHC ride I have seen.

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It is now ready to have oil in the lines and soon be ready to fire up.

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OK, next onto the dismal headlight area.

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I am fed up of headlights that are as bright as a 3 year old.

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I chose an expensive $50 TRI-BAR Halogen that really makes this Cafe get seen at night.

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A classic headlight pattern and a really bright lamp that will weld the tarmac if you leave it still enough.

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I used a 1948 Chevy Headlight Visor and this makes the whole package scream Classic Cafe.

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The Build is almost complete, except for a few final things like choice of rims and brakes etc.

This Cafe really is gonna be another head turner.

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I wired up the TRI-BAR headlight and the damn thing is brighter than a spelling B champion, I almost took my retna's out when I powered it up.

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Next was to wire up the turn signals, and this is where a workshop manual comes in very handy, as the Turn signals I use only have one wire and thats Black.

So had to ground them and then follow the schematic wiring diagram to see where it goes to on the harness.

The front signals now work and thats such a cool feeling.

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I had to keep taking the Gas tank off as the petcock was in the way on the left hand side, I then had to reposition it on the right and took 2 goes, just as well I am going to be sealing the tank later on.

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This time around I use a 2005 CRF50 HONDA  petcock as I wanted a one outlet feed, this serves the purpose very well indeed and looks trick too.

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I also added a Brand new clutch cable and adjusted that, this really is getting together and hopefully this week I can fire her up for the first time.

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That's always a cool thing once it has run for a few minutes and tells you that your creation is finally alive.

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OK, a good days work into this and she is now lookin like something worthy of a king.

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I attached the tank, but still to seal the inside and make sure the petcock does not leak, hope to tackle that tomorrow.

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I have started on the rear end now and have fitted the Cafe seat to the bike and it looks as trick as a magic book.

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I have also started to incorperate rear turn signals, I am not a lover of these damn things, but California law says you have to have them if they came with them from the factory.

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Really? Well Zepplin Balloons came with stormtroopers, do they still today?

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Anyway, this time I chose a different set up for the rear, I thought a RED set of signals would prevail this time and so far i have added the right side.

But main problem is I have to drill all the way through a longer mounting bolt, so the electrical can flow through it.

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Only get one shot at it and I only had 2 bolts.

the first one was a doddle, but the second one had already destoyed a Cobolt drill bit and the second one eventually broke inside.

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That will rattle anyone nerves when it is 95 degree's in the garage today.

So tomorrow I have to go and get more bolts and a bunch of cobolt drill bits to be able to finsh the turn signals, but, they do look great.

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The rear seat is an old Kawasaki and I like these duckbill style too.

The gold frame really does make this bike look old school.

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The gas tank will hold so much gas, you will need a pilot licence to be able to use this baby.

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Time is coming closer to end this chapter in the Cafe build up, but it has been a fun one.

I made the silencer and just need a good looking clamp and then can fire this up in the morning, this should sound pretty darn close to a Yoshimura when fired up.

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I pushed the bike into the front yard so you can see it in all its Glory.

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Next will be a 16 inch chrome rear wheel and up front will be a really polished Aluminium rim off a old Triumph Race bike.

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OK, things have really gone quick with this build and the Cafe has now made it's final step onto the tarmac.

I made the rear licence plate and added the cool bolts etc.

Rear cowl has my New TON UP decals, that really pep up the body work.

16 inch Harley wheel laced to a 750 hub was appled and a new 530 chain and sprockets were attached too.

Bunged in a new battery and took her out for a ride today.

Handles really well, and loves  the corners like an L shapped shelf.

Motor pulls like a train.

With new brakes, this Cafe stops easily and has a healthy breath of air going through the new pod filters.

Loads of power and many heads swung of kilter looking at this big gold and Black Cafe roar down the road.

This has been a fun build and I have now put it up for sale on my website, but, before you all go crazy, and jump for the phone.

The Cafe sold and will now be going to a great guy up in TEXAS.

So, Another chapter in this Cafe story closes, but, another one opens, just check their write up's, and hopefully some of the problems I had and sorted, will help you lot out.

I love the look of this Brit Style ride and will miss it, as I do not think I will have a original race gas tank that actually competed at brands Hatch and other circuits in England in the 1970's.

But I had fun building and riding this bike, and I know the new owner will be more stoked than the trains boiler.

This is will soon be wilder than a Tazmanian Devil on Steroids.
 
Gauges need more cosmetics than an ugly Model.
 
Wire harness has more breaks in it than a Freeway road worker.
 
Mexican chrome on the stock exhausts, Nice touch eh?
 
Rear shocks are as snotty as a runny nose.
 
Engine cases had More dribbles than a babies bib.
 
I.D. Tag was a beaten and weathered as a Barstow deralict.
 
OK, Here we go with the STRIP-TEASE.
 
Carbs and exhaust right off.
 
Here we go, watch my arse grapes, out comes the Motor.
 
230 pounds of stinking aluminum, that is rougher than Mr. Potatoe heads ears.
 
Wiring harness was about as much use as a Condom in a vasectomy clinic.
 
Have you seen so much snot today?
 
The brake system was as crusty as the Titanics Crapper.
 
Now the frame is stripped like a pick-a-part on 90% off day.
 
This was as torn up as a losing lottery ticket.
 
I now start to remove parts of the frame I do not like.
 
I hate this mainstands, look at the snot on it.
 
Golder than a Fort Knox vault.
 
More Dazzling than naked Ballroom dancing.
 
Shines like a Russian satelitte.
 
NOW THE BUILD BEGINS.
 
Rear swing arm and mock up rim attached.
 
A Rolling Frame, now looking cool.
 
 
Gauge assembly bracket fitted.
 
Frame sparkles in the sun.
 
Checkers galore.
 
Headlight Bucket was ready for paint.
 
Now time for the electrical.
 
More coats than a cold pensioner.
 
PLOP!!!!!!!!!!!! The ENGINE is finally in.
 
Battery box and tool tray inserted.
 
$180 of spagetthi.
 
Attached the wire harness.
 
CAFE STYLE SHOCKS.
 
There she blows, the motor is finally in.
 
Just like the Christmas song. No OIL No OIL!!!
 
Just adding Gas tank to see if it fits better than an old Shoe.
 
Master Cylinder was crustier than boxer shorts made of rice crispys.
 
As reflective as a Mister Magoo's bonce.
 
As scabby as a dead donkey.
 
Looks like a Beaver BBQ.
 
Now we are talking the Dogs wobblies!!!
 
Polished ends and cleaner than a new Lung.
 
NEW TRI-BAR HEADLIGHT & VISOR.
 
Getting together now.
 
You could Weld with this light.
 
Turn signals now come alive.
 
Gas tank looking like an old VINCENT.
 
NOW ITS LOOKIN SCARY!!!
 
Just wheels and brakes and she will be almost done.
 
Need to add Pod filters.
 
Different approach this time, RED rear turn signal.
 
More lines than a detention book.
 
Lookin ready to RACE.
 
Rear end say's it all.
 
This Cafe is now ready for the tarmac.
 
TON UP PIRATE DECAL DRESSES THE REAR OUT.
 
On The Right Side of the Tracks.
 
Cafe Racer looks at home with the powerhouse in the background.
 
Finally, this Cafe reaches its destination in life.