Project BCC Racer - New Guy

speedfoos

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Howdy. I'm new. Just found this place and like the info I've seen so far. While not old, I have been around the block and am currently in my mid-30s. No stranger to projects that consume petroleum derivatives, rubber and money, I've recently switched to things with two wheels instead of four.

And I haven't had a bonafide project in about two years. Sure I bought the Harley almost two years ago and I tinker with that, but it runs great, looks great and I am loathe to mess with it aside from maintenance and cosmetic upgrades. I've rebuilt the motor on my truck, replaced the transmission and rearend, repainted a bunch of stuff and aside from a VG33ER (supercharged OEM Nissan motor) swap next year, I don't want to mess with it either.

Hmm.....

So bored.

Not supposed to deploy again for a couple years - two in the last two years is enough for a bit - so I've got to have something to keep me busy in the garage. Its too hot to brew beer in there, so I'll keep doing that in the house....

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I know!!!


I'll buy another motorcycle as a project! My wife will love it! :3dbiggrin:


I've been combing Craigslist for the last year and finally pulled the trigger on this little "gem" last weekend.

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It's a 1980 Yamaha XS400 in its rare and highly sought after 'basket case' configuration. Key notes:

  1. I paid $280 for it.
  2. It has a clear title.
  3. The frame is 'mostly' unmolested.
  4. Everything except the carb(s) 'should' be there.

And I dub thee "Project BCC Racer". For those of you without imagination, that stands for Project Basket Case Cafe Racer. More on the next post.


I carted her home in my trusty truck. Its trusty now because I've completely rebuilt the drivetrain.

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And when I backed her up to the old garage, Momma was ecstatic with what I had purchased. See?

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She should be. Suga Bear brought back a whole truckload of fun!

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Time to get everything unloaded, throw the bike on my jack and start taking stock of what's what.

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I have metric arse ton of boxes with this thing. I really can't be bothered with going through everything at this point because its a greasy mess and I really just want to play with the engine and the frame. Besides, if worse comes to worse, I will simply sell the frame straight off and look for a better project.

That big ole headlight does give the bike a personality though...

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It screams "I'm a blank slate. Foos, attack me with your implements of destruction and turn me into something nice!"

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But first things first, baby needs a wash. I'm the third project owner of this mess and its in need of a serious degreasing.

There, all done.

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Let's pull a couple things off and see what we see.

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Right, so I'm not terribly familiar with all of the stock mounting points and tabs on the frame of a 1980 Yamaha XS400, but I can tell that this one has had a few things removed and a few others clumsily added on. Its nothing I can't deal with but I just hate half-arsed fabricators and mechanics. More pics on that tomorrow.

Moving on to the motor. I knew going into the deal that the lower end 'had one piston stuck', but didn't know exactly what that meant until I bought the bike. Basically, one piston had rusted in the cylinder. OK, I'm not too concerned about the motor just yet, but I'm no slouch around an internal combustion engine A little PB Blaster and a rubber mallet later and that piston is free. And lo and behold, guess what else I discovered?

Did you guess yet?


How about now?

Well, you're right. The bores on this here motor are 70mm and you know what that means right? Exactly, the engine brushes and dingleberry hones I have stockpiled from working on 75mm bore Honda Civic motors are going to come in handy now! The bores have been honed and aside from a few measurements, the bottom end is just about prepped.

The head has a bent intake valve, which is probably why the motor was apart in the first place. Oh well, not the big of a deal. But I had no idea how tough the valve springs were on one of these motors. Three springs later (two-cylinder, two-valve head) and I've bent my valve spring remover and still have an intake valve assembly in the head. Oh well, I probably should get the head blasted and dipped anyway if I want to save this motor so I'll have the machinist deal with that one.

So here's how the bike sits approximately six hours after purchasing it:

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My plans are (right now anyway)

- Rebuild it as a cafe racer-style bike.
- This is cheaper than going the chopper route because I don't have to fab up a hardtail for it.
- Just have fun rebuilding it.
- Put no more than the purchase price into it in parts and consumables.


Worked on the frame a bit and ground off all the redneck engineering bullshit on Sunday after I got back from the park with my fam.

Apparently these were welded chain forward controls at one time. I, for one, am glad that they're gone.

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Dunno what all this other crap was but its all ground off now. I left a little bit on the tubes since i don't have any flapwheel discs right now and don't want to get into the frame itself as I will have to fix it later anyway.

Yes that's a washer welded to a factory bushing.

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More garbage.

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You know what? I really dig fixing up something that's all jacked up like this. I wish I had a sand blaster so I quickly strip this frame down and really start in on it. I have noticed a couple more problems though. Shit, forgot. Drinkin. Need to think for a spell.
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Ah, that was it. Cletus ground off the fork stops and it looks like the steering neck bearing is the wrong size as about 6mm of it sticks out of the bottom of the neck. Hmm. Well, the fork stops are an easy fix and I'll worry about the lower neck bearing later on in life.

I think there was something else, but I'll just let it come to me later.

Oh! Only one side of the tank was beat in. I like the look but have never done anything like this before. I mean, I think I can guess at the basics - fill the tank with sand, work it over with a hammer and voila, its a concave tank that looks all magical and retro. Guess I'll have to start reviewing some Youtube videos and practicing on metal trash cans until I feel comfortable taking a hammer to this tank.

I threw the roller back to together and starting looking at it and thinking. I really like the look of this bike so I'm going to keep it, at least until its finished. Making the cafe seat section looks pretty easy, relatively speaking. A little work with some fiberglass, a 1/2" (maybe 3/4") hoop for the tail section welded in and then its on to the sparky and oily bits. Its only steel tubing and a little sheet metal right?

Out of curiosity, I threw the stock seat from my Dyna on the bike.

NOTE: I will never attempt to put this seat on the BCC Racer.

But, if you look at the rear of the seat, it kind of follows the cafe rear section lines. Ignore the front and the wide ass platter, this is just working with what I have to visualize the lines of this thing as a cafe racer style scoot.

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And yes I flipped the handlebars over to see if I want to use them or get some strap....errr....clip-ons.

That's it for Sunday folks.
 
Right on. I thought I had my tail hoop situation figured out but I don't so I'll move on until I get it sorted.

Since I wanted to do something on the bike tonight I picked an easy part. Let's fix the rear suspension geometry. What to do? Well, I've got a metric ass ton of, well, metric bolts from the parade of Honda Civics that have run through my garage. Okee doke. A little figuring, a little wire wheeling, some picking through my bolt bins and here's what I came up with (don't mind the blur, i forgot to pop the flash up):

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Pretty sure those are from the rear motor mount of a single cam Civic.

And lookee here, a couple of Sportster shocks that were in my spare parts cabinet! Mo betta angle.

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And a shot up her rear.

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Yup, I think that dog will hunt. I still need to weld the spacer in the upper mounting bolt and weld the M10 (stock were M8) nut to the backside and then lather, rinse and repeat on the other side, but not bad for about 90 minutes worth of figurin' and tool time.

Now I'm about to head out and finish the rear suspension, pics when I'm done!
 
Wow someones hacked the heck out of that bike:doh: Just a few things I see right off, front end and wheel are not the stock ones. The swing arm is off another bike also, the mounting bolts for the foot pegs have been chopped off. Looks like you got a lot of work on your hands good luck. It will be nice to see what you come up with:thumbsup:
 
Good score man. Welcome to the site. Previous owner bit off a little more than he could chew, did he?

Yeah man, just a bit!

Wow someones hacked the heck out of that bike:doh: Just a few things I see right off, front end and wheel are not the stock ones. The swing arm is off another bike also, the mounting bolts for the foot pegs have been chopped off. Looks like you got a lot of work on your hands good luck. It will be nice to see what you come up with:thumbsup:

Good eyes. Swingarm is off a Radian, gives it about 5 inches of stretch, at least it came with a chain to match. Yeah, the frame is a bit more "modified" than I would have wanted, but there's a good chance I would have cut all that shit off anyway. When it comes time for it, i'm going to fabricate a rear set for it anyway so there's a good chance the passenger pegs would have ended up in the dust bin.

It will be a good time regardless, these kinds of projects are fun. Causes me to flex my brain a little.
 
I kinked work today since I'm about to go TDY for a spell again. Since no one was home, I decided to work on the bike. First things first, I needed to clean up the nasty old chain.

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I suppose I could do this by hand, but that's tedious and I'm pretty laz.....efficient. Any guesses as to what I'm about to do?

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Got an idea yet? Yep, that's right. The magic of science and electrolysis. A little positive current on one side and a little negative current on the other and the magic starts to happen.

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That needs simmer a bit while I do some other stuff like prep the other side of the swing arm and frame.

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There, that's all prepped. I used some 3/4" pipe as a spacer in the spot the old shock eyelets went since I mounted the Sporty shocks outboard of the stock location. Once I got everything cleaned up, it went pretty quickly since I had done all of my figuring last night. See what I'm talking about?

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Now, my more astute viewers will notice that jaunty angle that the front of the bike has now assumed. Its almost like a donk - or perhaps a bubble. Since I have more sense than to ride around in a vehicle like that regardless of the number of wheels, I'm going to lower the front suspension to match once I get everything in/on the frame (motor, tank, etc...) before I address any lowering requirements I may need to fulfill in the front of the bike.

That's enough for this afternoon. I may work on it some more tonight, but its getting hot out and I don't feel like getting all nasty.

Anyone want some soup?

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And continuing with my repairs to the frame. Cletus had stripped out the top triple tree clamp holes (M8s) and there were two different size bolts securing them. So I drilled and retapped the clamp to fit an M10x1.25, Much gooder. That these are M10s also makes me realize I used M12s for the rear shock mounts. Not that it matters to anyone but me.

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Worked on a couple things today. Ground off all of the tabs on the back half of the frame that I won't be needing. No pics of that, but it makes sitting on the frame making engine noises a lot more comfortable when I'm testing rider position.

I also fixed the fork stop issue I have. My forks used to do this:

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Yes, they hit the tank. That was because Cletus ground the fork stop down. I really don't know why.

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Righty-o then. I grabbed some bar stock, whack a chunk off it, heated it up with my two favorite gasses (oxygen and acetylene), beat it with a hammer on a pipe and voila.

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A little grinding and welding later and I have a functional fork stop again. I need to clean up the aesthetics of it and futz with the neck bearing (currently doesn't fit) but no more forks banging into the tank!

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I've only got the bottom one and it seems I'm either missing a shim or its the wrong size given how much it pokes out of the bottom of the neck. Either way it will get replaced. That said, when I was welding on the neck, I removed the steering stem anyway.
 
Looking good man, my likey all the piktures.

Glad to hear it! I'm a hobby photographer so I have just as much fun taking them.

Welcome to the forum. Next time it happens, please post picture of the above on this thread:You could be a winner!

Damn, I'm TDY down to Arizona until the first part of November so I will have to catch the next month.

Welcome. Looking forward to more pics. How did the chain soup work out?

Quite nicely actually. I'll post a pic of it when I get home next month (Army has me out and about again), so the only updates I will be able to post here will be of stuff I find for the bike or other motorcyclia/XS400 porn.

i was thinking exactly the same thing.

Would love to see it turn up if anybody finds it.
 
Right, since I'm away from my bike I've been sitting here drawing up one on graph paper to get an idea of how the cafe section of the bike will look. I'm not a very good artist so I won't be posting it up - it looks just like an XS400 with a cafe rear section, nothing terribly unique, but that's not why I'm posting right now.

Over the past couple hours I've been looking at pictures of my bike and those on the internet and I noticed something about the front forks.

Hmm...

A stock XS400 looks like this:

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Note the orientation of the axle on the fork.

And now a shot of mine.

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Looks a little different don't it?

My best guess from looking at different bikes 'round about the same year range is that I have a set of front forks from either an XS650 or 850. I'll have to see if I can't find a serial number or some other marking when I get home, but this solves my bearing mystery as to why the bottom bearing on the steering neck pokes out of the bottom a little bit. The neck doesn't match the frame. Not that big of a deal now that I know what I'm dealing with.

It's always something.

Oh, here's an XS850 whose front forks are nearly identical to the set I've got.

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