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1984 Honda HONDA VF700S SABRE CAFE

12801 Views 44 Replies 13 Participants Last post by  Sabre Cafe
If interested for details message me. Thanks

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It looked nice in its original state........survivor

I like it better that way

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Starting over with this bike, there are people that could build one that looks almost stock that would smash what he built on the track.

Be pretty sketchy to run out of brake and clutch fluid at the same time.
You can position it below the level of the MC's - you just need to make sure you get the air out of the lines first up.

Come on - flame me for this :cool:
Maybe, but in a system where fluid is being pushed in and out of a nonairtight reservoir I can't see a system where you would purposefully place the reservoir below the MC.

Bubbles form even in an airtight system with changes in pressure. It's called cavitation.

placing the reservoir below the master means the bubbles formed remain in the system.

am I wrong?
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Maybe, but in a system where fluid is being pushed in and out of a nonairtight reservoir I can't see a system where you would purposefully place the reservoir below the MC.

Bubbles form even in an airtight system with changes in pressure. It's called cavitation.

placing the reservoir below the master means the bubbles formed remain in the system.

am I wrong?

Not it sure if most braking systems suffer from cavitation (I suspect not), but I guess it would depend on where the cavitation was occurring - if it's down in the caliper then that air is never going to come back up through the lines and out the MC.

For sure the reservoir placement below the MC is not ideal, but I can be done and it can work.

Anyway, back to this application the hosing is pretty untidy on what is otherwise a pretty clean looking bike. Probably would have been tidier to run 2 mini reservoirs and have them sitting symmetrically on each side the the top clamp.
i use a couple 1/4" of those on my S3 fuel line (with clamps).. im more worried about the use of zip ties on the brake line. i guess you dont want to use unsightly hose clamps. but you use a cheap $2 brass "t" fitting, there is no way i would ride/race a bike that had zip ties to secure the brake lines.( and before someone says its ok, try and get it thru tech) and your not taking my "dumb and slow" title away from me
It would pass tech as the zipties are on the reservoir side of the system..... Sadly by using a bulky, unsightly, brass tee to link the brake and clutch to one reservoir; and 8 feet of heavy rubber hose and a gallon of fluid to fill the lines, the builder has actually added weight with this nifty little mod. Nice.

Anyway.... Real racers just use a short length of clear hose instead of a bulky reservoir....

DOHCbikes..... If your brakes and clutch are running out of fluid then check for leaks.... The level in the reservoir gives an indicator as to the amount of wear on the pads...
I'm not going to flame anyone :/ but I will offer this for your consideration; here is a diagram of a convention (atmosphere vented) hydraulic disc brake system, what would happen if you turned it upside down and attempted to operate it? Hint: the white area above the brake fluid in the reservoir is air at atmospheric pressure, anything more than that pressure would cause the brakes to apply, anything less would cause the pads to retract.

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It's not putting it upside down it's putting the reservoir beneath the cylinder. It is not naturally self bleeding like a reservoir over cylinder arrangement.
Good point you should be able to have it siphon into the master cylinder ;) but as my father-in-law used to say: 'I don't know which way water flows where you live but around here it flows down hill.'
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Anyway.... Real racers just use a short length of clear hose instead of a bulky reservoir....
I've only ever seen these on the back brake res, would it work on the front, especially if the level was above the MC? You could have it poking out the top yoke nut.
I've only ever seen these on the back brake res, would it work on the front, especially if the level was above the MC? You could have it poking out the top yoke nut.
I've seen short lengths of tube on off the mc on choppers and the like. They want that "clean" look but for some reason dont have an integrated reservoir.
I've only ever seen these on the back brake res, would it work on the front, especially if the level was above the MC? You could have it poking out the top yoke nut.
It does work on the front with a little bracket to keep the pipe upright. Front's tend to wear a lot quicker than rears so the level will drop quick in the front reservoir.

I don't recommend it for road use as there is no point. Race bikes get run for 20-30 mins and then are checked over. Road bikes seldom are treat to the same luxurious care and running out of front brake fluid at the m/c is generally nasty.
Oh I'd never puy it on the front, my neighbour stuck one on his back brake but he likes the racing look, with stickers and all the power ranger crap. I ain't one for that bollocks.
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I tend not to sweat the small stuff..... If you want that racing look then try these..... It's the latest fashion don'tcha know !!!!!

Thanks guys for all the interest. I'm afraid to say this because I know what will probably follow... but... if all that's got everyone's panties in a bunch is a brake reservoir hose and front fender (which I intentionally did) I am very pleased. Building any type of vehicle on 2 or 4 wheels is a tricky thing. You can follow the crowd or strive to be 1 of 1. Some will like, a lot will hate but at the end of the day it was a pleasure on my part.

I know this ain't the off the shelf traditional cafe style, but more like a sport/cafe. It's always tuff chopping a true survivor apart, but there's 1000s left out there for the purist, after all, this is a "custom" cafe site not a purist site.

Bike was hand crafted with a purpose. Improved braking, improved steering, improved suspension, improved speed, awesome sounding with 21st century technology. Bike is also 75lbs lighter than stock, surely not worried about intentionally running one reservoir and a hose for the clutch and brakes. She is nimble, quick and easy on the eyes.

I get it though, everyone has their own opinion

6 speeds and the 700cc's still screams Honda out the pipes :)
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I like your bike, but I think you could re-do the MC arrangements to make it look neater. As it stands, the brass T piece looks like a cheap after thought.

Good luck with the sale.
Thank you. I originally had both m/c's but it felt cluttered to me. I think it's pretty cool seeing the simplicity of the polished brass t and short hose. Ya you can certainly see it, definately wasn't trying to hide it. But I hear you, there's probably a tidier solution.
I get the I built it for myself and I like it that way theory, but how much do you figure you increased the selling price by leaving it with no front fender? :rolleyes:
I do this for fun, there's an ass for every seat, I'm sure if someone is that scared to not have a fender, he or she can request one

Steel, glass, carbon. Anything is possible ;)

Less = More :+1:
Question for the OP: How bright is that headlamp? I was looking at the same one to replace my dim, 1974 sealed beam lamp.
Headlight is very bright, not a huge difference when switching betweeen high and low beam, i always ride with high beam on, low stays on too. Can see very well at night in front and sides. Can't beat it with any halogen or hid. Led and projector is the way to go
Awesome, thanks for the info! Adding it to my list of winter projects...
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