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Punkskalar
02-08-2010, 9:23 PM
This was my first bike build. I did it for my Senior Thesis in Industrial Design at Appalachian State University. I know, I know.... Jap bikes suck... Well, I decided to make sure mine didn't suck, and on a student budget, and only about 16 weeks to build it, I needed cheap and fast. Enter the venerable XS650. I took a night job on campus in the metals department to be able to access the lathe, mill, TIG, etc... I never really used the equipment more than about 10 minutes each before this project...

This is the ugly I started with:

http://i178.photobucket.com/albums/w264/punkskalar/UglyXS.jpg

I wanted to use Akront style drop center rims, and scrounged some off of an Ossa and Husky Dirtbike. I laced them up myself to the XS60 hubs, which I machined and polished. 21" Front and an 18" rear.

Everyone does a 3-4" stretch on an XS, so I decided to keep mine short, real short. the wheelbase is actually shorter than stock. I shortened the forks myself, trimmed down the fat on the trees, and had a roller.

Next up was the engine. I had a roommate with an XS650, and it seemed to vibrate alot. ALOT... After doing some research, I found lots of Internet Ninja's discussing re-phasing of the crank and cam. Like all Internet Ninja's, all they did was talk about it, so I decided to do something and make it happen. Stock XS engines pistons travel up and down at the same time. Unacceptable! I altered the crank by rotating 1 set of flywheels 83.something degrees. Then the cam had to match, at an even 41.something degrees, so I cut apart 3 cams before making this one work! So far soo good, no vibes, and 10K plus RPM make this thing a torque chop if there ever was one. Add in some 707CC pistons, overdrive 5th gear,some headwork, custom pipes, and a set of vintage Lectron Flatslides, and this thing just hauls ass...

After that, I couldn't just throw any old set of aftermarket bars, seat, etc... on it. So I made em all to fit my style. I made the bars from some stock ones I cut down, hammered out the seatpan and covered it myself, made my own rearsets, controls and grips, and topped it all off with a hidden footclutch mechanism and hand shifter. Basically, the only thing let unmolested was a headlight and a taillight.

Basically, I wanted to learn all I could and test things that I'd never seen done before. Overall, I've been extremely please with how it came out. I built it for me, but its nice that others dig it too...

http://i178.photobucket.com/albums/w264/punkskalar/XS650%20Pics/Chesapeakebay.jpg

http://i178.photobucket.com/albums/w264/punkskalar/BMR%202009/FH000010.jpg

http://i178.photobucket.com/albums/w264/punkskalar/XS650_Rear.jpg

http://i178.photobucket.com/albums/w264/punkskalar/Gas_Station.jpg

http://i178.photobucket.com/albums/w264/punkskalar/XS650_Front.jpg


Owner/Builder: Hugh Owings, Boone NC

Bike Name: I'm bad at names, so this is just my XS650

Engine, year and make, model, modifications: 1981, XS650, Slightly Modded...

Frame: Stock front loop, stock length hardtail.

Fork: Shaved and lowered. smoothed trees, integrated headlight mount.

Chassis mods: Custom Rearsets, fat free frame, handbent hardtail section

Tire/wheel size and style: 21" Akront with an Avon up front, and 18" Akront with an Avon out back

Favorite thing about this bike: James Fuel tank, only seen 1 other ever...

Next modification will be: Longer fender and a sissybar for the long trips... That side bag would be sweet too!

Other mods, accessories, cool parts, etc: Handmade exhaust, controls, seat, bars, fender stays, gas cap (yeah, even the gas cap)

Any building or riding story or info you'd like to include: I'm 6 foot tall, and a short chop is too damn fun. With the right bars, and controls, this thing is just right for a 5-7 day trip... Now the seat on the other hand, well...

Thanks to: Brewdude for the powdercoating, And Mitch from Bling Cycles for the encouragement and support. Last but not least, my friends over at Pirate4x4!

Check out the build thread here: "Punskalar Builds a Bike / Chopperthing"
http://pirate4x4.com/forum/showthread.php?t=719041

And you can here it run here:
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Hugh Owings Motorcycle Bobber Chopper XS650 XS 650 Honda Rebel CMX250 Hughs Hand Built HughsHandBuilt

justin666
02-08-2010, 9:30 PM
LOVE your bike dude!!!!! so clean and dialed

SMChewy
02-08-2010, 9:31 PM
So do you do this rephasing for others????

Punkskalar
02-08-2010, 9:34 PM
So do you do this rephasing for others????

I'm working outta my basement right now. I've not done another rephase for someone else yet, but have plans for a guy that wants a 800+cc drag engine. Should be rad...

I am also planning on doing another for myself, in a whole new chassis....


Here is a quick video of how the "new" engine sounds...
http://www.youtube.com/watch?v=tVpZ7hMXCj0

mplsdave
02-08-2010, 9:34 PM
your bike is sick

revmike
02-08-2010, 9:39 PM
Hey, this is Chop Cult, all bikes rule, regardless of their race, color, creed or national origin. You must be thinking about that "Other" forum. Read the write up on your bike, nice work. Aesthetically you've done a great job on the lines and the flow. It is more impressive that you have actually improved on the internals as well.

Nice work....

Punkskalar
02-08-2010, 9:42 PM
Hey, this is Chop Cult, all bikes rule, regardless of their race, color, creed or national origin.

Thats why I already feel right at home here! I love this place, the tech is sweet, and I've already made good connections for traveling, parts, etc... Its what a bike community should be, and I'm stoked to be a part of it...

GreaserMike
02-08-2010, 9:48 PM
The bike is absolutely killer! I love everything about it.

You should be extremely proud of what you've put together. (and if you didn't ace that program I'd gladly have words with your instructors!)

Well done! I can't wait to see our next build.

SMChewy
02-08-2010, 9:48 PM
I'm working outta my basement right now. I've not done another rephase for someone else yet, but have plans for a guy that wants a 800+cc drag engine. Should be rad...

I am also planning on doing another for myself, in a whole new chassis....

I live on the other side of the mountain from Bonneville. Just figured it would be fun to try my hand at the salt flats. That and the old lady said no way to a salt flat racer. Doesn't she realize that just gives me more reason to build one???

burntclutch
02-08-2010, 9:54 PM
so far i'm gonna say the jap chops are winning this my bike contest. bike looks like the child of rad and sweet

xllance
02-08-2010, 10:39 PM
This one gets my vote so far, killer lookin scoot nice and understated, then I read about the whole flywheel / piston / cam thing, damn dude!!

philbey
02-08-2010, 11:03 PM
Hugh, how much did you lower this thing by? I can't remember, did you post more details in the pirate 4x4 thread?

nohonestlyitsme
02-08-2010, 11:09 PM
everytime i searched "xs650 bobber" on Google Images for a while when getting familiar with this scene, your bike you come up and I was always blown away by it. Cheers

Punkskalar
02-08-2010, 11:15 PM
Hugh, how much did you lower this thing by? I can't remember, did you post more details in the pirate 4x4 thread?

I have no idea how much it was lowered techinically, I set the frame height to 4". Its a low little scoot, but with the way I built the exhaust and the rearsets, it carves turns with ease..... The build thread is about 26 pages long, lots of tech and details in there for ya :)

I'll save you some time. Look here for the start of the frame mods....

http://pirate4x4.com/forum/showthread.php?t=719041&page=4

Punkskalar
02-09-2010, 9:41 AM
This one gets my vote so far, killer lookin scoot nice and understated, then I read about the whole flywheel / piston / cam thing, damn dude!!

Thanks man...

I get that alot, as far as the bike being very subtle. Its the details that make it smooth. Building a simple bike is WAY harder than it looks.

Isgro
02-09-2010, 9:47 AM
I followed your build-up over on Pirate and despite the fact that I'm familiar with the bike it still blows me away every time I see it. So clean and well done. Have you figured out a solution for the sissy bar/rear fender for the cross country ride yet?

DirtFloorJim
02-09-2010, 1:13 PM
Good looking bike. I've been trying to find a cheap XS650 myself. I'm gonna read your Pirate write up!

Off the subject a bit but since you're on Pirate4x4 you might be interested. A few guys from my Jeep club(NJJC) Erik Miller & Kevin Ledder just got to the Lake Bed in Socal today to run in the King of the Hammers race!

logi
02-09-2010, 1:21 PM
Just read the write-up from the January CycleSource on you and this bike. Verrrry sweet! I hadn't even heard of anyone attempting to do that rephase deal before this.

Punkskalar
02-09-2010, 2:43 PM
Good looking bike. I've been trying to find a cheap XS650 myself. I'm gonna read your Pirate write up!

Off the subject a bit but since you're on Pirate4x4 you might be interested. A few guys from my Jeep club(NJJC) Erik Miller & Kevin Ledder just got to the Lake Bed in Socal today to run in the King of the Hammers race!

Yep. My best friend and another buddy are running in Car 52X... Or at least that was last years number.... Should be intense!

SDJose
02-09-2010, 6:13 PM
That chop is outstanding. I keep going back to the magazine article! You did an awesome job on the whole bike! Respect!

Jose

Punkskalar
02-10-2010, 1:07 PM
That chop is outstanding. I keep going back to the magazine article! You did an awesome job on the whole bike! Respect!

Jose

Thanks alot man, there are alot of really nice chops on here, I really like the ability to help each other out here, thats why I keep the build thread up, and I'm always available if anyone has questions about building, choppin, or hot-roddin...

TatdGasser
02-10-2010, 2:11 PM
Is the first bike you ever chopped up? That's such a good freaking job, kick ass stuff.

motoguru
02-10-2010, 4:17 PM
Saw the write up on your rig in The Horse or Cycle Source or w/e the fuck rag it was. You deserve to win just for the in depth retardacity you put into it! Next level shit for sure. Good on ya, mate!

Punkskalar
02-11-2010, 6:31 PM
Is the first bike you ever chopped up? That's such a good freaking job, kick ass stuff.

Yeah, first bike to go under the knife. Actually, went I started building this bike, I'd only known how to ride for about a year. My first bike was Honda Shadow 1100 that I had done some engine work on, but visually stock...

Punkskalar
02-27-2010, 11:24 AM
Just ordered my 200W permanent magnet charging system, should be able to run battery-less now! Just gotta make some brackets and parts to make it all work...

Punkskalar
03-02-2010, 11:05 AM
Thanks for all the votes, messages, and even questions... Its cool that this place works soo smoothly, and we can get up with each other easy and fast. I get lots of guys asking me tech stuff, feel free to ask...

Hugh

framus
03-02-2010, 2:10 PM
Very awesome back story and an incredible bike. Congrats!

mattdubs
03-08-2010, 12:44 PM
Love this bike, you did a great job. I'm all for understated looks with true creativity and inginuity behind the scenes.

philbey
03-08-2010, 5:59 PM
hugh, what's the details on the permanent magnet alternator man? I'm trying to weigh up my options to ditch my battery, or at least move to a smaller battery and ditch the starter motor at least.

sirwigston
03-23-2010, 2:14 AM
so i actually saw your bike in a magazine, didnt have enough money to buy said magazine but took photos on my phone, and that was my intro to xs's about three months ago. since then it's been scouring the internet for inspiration and something to start with, and now i end up here talking directly. ha. fancy that hey. just started a thread and will be keeping it updated i hope!

nice one mate, thanks for the inspiration.

VJ
03-23-2010, 5:15 AM
Respect and admiration here. That is awesome. Move in close and I'll buy the beer and bring all sorts of ideas.

Ghosttown
03-23-2010, 9:24 AM
So so clean, love it!

Sasquatch
03-23-2010, 10:53 AM
I have a spare engine I am going to rephase and was wondering if you still had access to the machinery to rephase the cams. I can do the rest myself.

Also have you posted your wife's bike on here yet. It is a cool little chop too.

Punkskalar
03-24-2010, 11:05 AM
I have a spare engine I am going to rephase and was wondering if you still had access to the machinery to rephase the cams. I can do the rest myself.

Also have you posted your wife's bike on here yet. It is a cool little chop too.

I "could" do the cam for you, but you'd be better of buying one really... They are costly, but so is machine work, and I had an extensive learning curve making the cam work. I broke 3 or 4 if I remember right before i got it right...

Let me know if you need anything, I've been doing the cranks for some folks here and there, as well as other engine work, frames, forks, etc..

Hugh

HughsHandBuilt@gmail.com

CHARLIEHUSTLE
03-28-2010, 12:12 AM
Amazing job on the bike........

VJ
03-28-2010, 10:10 AM
Was power increased? Throttle response faster when the motor was rephased? Or was it simply a matter of reducing vibration? My KZ750 twin has a huge counterbalance that could be tossed if it were rephased. Which should eliminate weight and increase performance.

Vinny
03-28-2010, 1:38 PM
I have ridden with hugh a bunch and though I have never ridden with a completely stock xs I have ridden with another custom one. I can say that hughs pulls away alot faster than the other stock one did. He let me ride the thing ones and it scared me. Its no sport bike but the thing hauls balls.

philbey
03-28-2010, 6:24 PM
This has been overbored quite a bit with a fair sized Cam in there hasn't it?

Punkskalar
03-29-2010, 8:50 AM
This has been overbored quite a bit with a fair sized Cam in there hasn't it?

Not as much as a 750CC kit, Im at 707cc's right now... The cam is an XS1 that I mutilated to make work with the rephase. Ported and polished, and some hot carbs help alot :)


The last XS650 I ran with was stock bore, ported and polished with 36mm Mikuni's. At 90 MPH, it was all that bike could stand, and I could roll on the throttle and leave it in the dust... He even had a 30 tooth rear sprocket, and Im running a 32.

philbey
03-29-2010, 8:52 PM
I'm definitely interested to understand what sort of power gains you get from the rephase alone, but with carbs, headwork and a bit more capacity it all gets blurry!

I've heard that a set of VM34's alone make a big difference in performance.

Punkskalar
03-30-2010, 9:21 AM
I'm definitely interested to understand what sort of power gains you get from the rephase alone, but with carbs, headwork and a bit more capacity it all gets blurry!

I've heard that a set of VM34's alone make a big difference in performance.

Ive seen the VM34's setup. Its an upgrade over stock, but I wouldn't say they are HUGE gains to be had over a good set of running stock carbs. BUT, add in some other mods and it helps.


AND, in my mind, there is no point in rephasing an engine and not doing all you can to get some more out of it (port, polish, Big Bore, exhaust, cam, etc...) BUT I am working on a stock 650 re-phased soon... I'll keep you guys posted...

Trex
03-31-2010, 12:26 AM
I'm freaking intrigued. Planning a big bore kit next year...have the VM34's already pods and open pipes...hotter coil etc. I'd like to see some dyno numbers or track times compared to stock to see how it affects the overall torque HP and acceleration curves. Just a reduction in Vibration goes along way to reduce wear and lost parts..as well as lost HP fighting its own momentum. I can see that I'm gonna be reading and figuring alot. Thats a nice clean scoot. I hope to max out my longevity power and wow factor as well.

miller0613
10-31-2010, 8:24 PM
Just a quick question. Where did you get the 6 over pistons it doesnt look like mikes are 650 central have them and did you have to get the motor resleeved or will the stock cylinders take that much overbore?
Thanks adam

Punkskalar
11-01-2010, 9:34 AM
Just a quick question. Where did you get the 6 over pistons it doesnt look like mikes are 650 central have them and did you have to get the motor resleeved or will the stock cylinders take that much overbore?
Thanks adam

they are not "6 Over" pistons, they are Wiseco 707CC Pistons, higher compression and all that goodness... No longer in manufacture...

TriEye8
11-01-2010, 4:02 PM
Hey Punkskalar, you mentioned you were an Industrial Design student. You have any drawings of the bike before it was complete? It would be great to see some process in the build.

Thanks

Punkskalar
11-01-2010, 5:13 PM
Hey Punkskalar, you mentioned you were an Industrial Design student. You have any drawings of the bike before it was complete? It would be great to see some process in the build.

Thanks

Somewhere around here, they were just basic sketches though used for color studies... I'll look around and see if I can find em'

miller0613
11-01-2010, 6:15 PM
Hmmm.... I know that you are building and rephasing some engines for friends and others what pistonsare you using now or what do you recommend?

Punkskalar
11-01-2010, 6:37 PM
Hmmm.... I know that you are building and rephasing some engines for friends and others what pistonsare you using now or what do you recommend?

If you've got 650CC Stock pistons in good shape, keep em. 750 Kits aren't all that, since they have lowish compression anyhow... Basically, you can run anything you want with a rephase

miller0613
11-01-2010, 9:14 PM
Alright thanks appreciate it