my latest and favorite-2000 1200S Sportster

tobiism

Been Around the Block
Howdy folks. A few of you know me and how many unfinished projects I have. None of them seem to hold my interest like Sportsters do. They are so much fun to ride and so easy to work on. My main complaint with them has always been their obesity and their crappy suspension.
After I sold the last bike I built
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I decided I would buy the Sporty I always wanted- the 1200S model. This bike came from the factory with triple adjustable front and rear suspension, hotter cams, triple disc brakes, higher compression and twin plug ignition. Post 2000 models are the best as they came with dual 4 piston calipers(best stock brakes I've ever had!).
So after some looking I found this model- black of course!
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Its a 2000 that only had 10000 easy miles on it. After the scariest test ride I've ever had, I paid the man $3500 for it and proudly brought it home.
The reason the test ride was so scary was this-
7psi in the tires, both shocks had different settings from each other, as well as the forks!
Once I aired up the tires and properly set the suspension, I was in love!!!
This S model runs so smooth, the twin plug ignition smooths out the revs like no other Harley I've ever had. At 80-90 there is barely any vibration in the bars. Not bad for a solidly mounted engine!
I really wanted to lighten this baby up and make it handle, handle, handle!!!
So, a steering damper, rearsets, 2-1exhaust, ZRX1200 KYB shocks, aluminum FLY 7/8" motocross bar and a fork brace were first on the list
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Now the weight needed to come off- Stock harley mag wheels are SUPER heavy. So I decided to switch over to Katana 17" rims, because they are 3" front and 3.5" rear. I fitted Michelin Pilots to them and machined some adapters on the lathe to run them. This switch netted me over 35lbs of savings!!! Honestly the difference this made was amazing. Turn in, acceleration, are so much better I still can't believe it.
I also modified a welding mask to act as a mini-fairing.
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More weight needed to come off, so I removed the battery, oil tank, battery box and all mounts under the seat.
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The battery went from a 15lb pig to a 1.83lb Shorai 210CCA unit mounted into its own box under the seat
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to get an idea of how light this battery is, check this movie of my 6 year old holding it.
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The oil tank is on it's way back from the welder and is a small aluminum unit that will be sprung mounted to the front downtubes to move the weight forward and down
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Now I've switched the fairing over to a more conventional style.
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In this photo you can also see the rear fender strut/fender has been cut down quite a bit.
I ditched the stock speedo/tach- 4lbs! and made a small indicator light panel with an LED to shine on the Sigma bicycle computer that will now be my speedo/trip meter/odometer.
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This bike is sooo much fun to ride. Its SO torquey and just plain effortless to ride in the twisties.
Keep checking in, because I haven't even started drilling holes in things!!!
Oh yes I have-
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And there is a lot more to chop down/off/drill! I'm aiming to get this thing to 400 wet. We'll see!!!
 
Digging it so far man, would love to see a flat tracker/XR style seat on there or something a bit sportier. Can't wait for updates :)
 
valvesprung said:
Digging it so far man, would love to see a flat tracker/XR style seat on there or something a bit sportier. Can't wait for updates :)

Thanks, but this bike is all about going fast around corners, comfortably! My hiney is waaay to sensitive to those style seats. I want to be able to ride this thing all day and not be miserable because of it.
 
I think it's coming along great. I've been toying with a Sportster Cafe because it'd sound so damn good!
 
BigAl8295 said:
I think it's coming along great. I've been toying with a Sportster Cafe because it'd sound so damn good!

Thanks, that Supertrapp 2-1 really growls when I'm on the gas!
 
Bad ass! I love it. Sportsters have to be the most versatile bike ever. I would love to put one in my collection in the near future. I'm really digging the mix of aggressive and practicality.

Great Job
 
Thanks! I'm hoping my alloy oil tank gets back today so I can take it for a ride this weekend.



Swapmeet Louie said:
Bad ass! I love it. Sportsters have to be the most versatile bike ever. I would love to put one in my collection in the near future. I'm really digging the mix of aggressive and practicality.

Great Job
 
I've been waiting for my aluminum tank to get back from Ratpan(should be here any day now).
I decided I'd see if I could use this aluminum fire extinguisher I found in the dumpster at Lowes.
Its just about the easiest thing in the world if you're going to mount it upright.
I cut the spray handle off, tapped the hole in the remaining threaded plug for a 1/2" nipple, soldered a 2" piece of 3/8" copper into the nipple and bam, there is your return fitting and the tank cap all in one.
The base of the fire extinguisher is 3/8" thick, plenty thick for tapping for a vent and supply fitting. The vent fitting has a piece of 1/4" copper tubing that reaches all the way up to the top.
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It nestles in between the frame tubes nicely and has foam between the frame and the tank. Its held in place with four of the really thick 1400lb zip ties.
I've already tested the bike at full front brake lock and the wheel does not contact the tank.
Losing all that weight with the battery and oil tank has made another profound difference in acceleration and handling. I'm stoked!!!
 
SHIT!!! I'm so excited about this here little tank. It came in the mail today right after I finished a nice ride with the extinguisher tank. Call me silly but I've wanted some kind of exotic lightweight welded aluminum tank on my bike for a long time!!! I made up all the panels and parts and sent them out to Ratpan. He did such an awesome job and I highly recommend him to anyone who needs some welding done!!!
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spring mount spools
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fill,return,vent
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Re:Now Monoshocked! 2000 1200S Sportster

All mounted up
The springs work fine, but I'm thinking I need to replace them with some tiny turnbuckles, for a little extra snugness. I definitely dig it. I think it looks very extra great.
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Well a lot has changed since I put this bike together. It stuck to the road like glue and had plenty of power, but it still wasn't light enough. So I decided it was time to monoshock it.
So I cut the rear subframe off
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Then cut the single downtube out so I could run twin downtubes in order to stiffen the swingarm pivot
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Then made up a new subframe, started bracing the swingarm, added the rear shock mounts.
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Keep in mind the swingarm bracing is not done, and neither is the shock mount bracing on the frame. Here is where it sits now, with the cut down stock fender under a Corbin Gunfighter seat and new old chrome sporty tank
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The shock is from an 1125CR Buell. It has the same wet weight as my target weight for the sporty- 430lbs.
I also did some work on the stock harley hand controls, by removing the switches, putting a nice radius on the edges of the clamps and inserting tiny turn signal switches into each clamp
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I'm really looking forward to getting this thing back on the road, should be an absolute blast!
 
I'm by no means an expert (I'm not even really a gifted amateur), but that monoshock off to the side like that looks a bit dangerous... Shouldn't it be centered in the swingarm?
 
Sonreir said:
I'm by no means an expert (I'm not even really a gifted amateur), but that monoshock off to the side like that looks a bit dangerous... Shouldn't it be centered in the swingarm?

No, its been done many times. Once I'm finished with the bracing it won't be a problem at all. I wouldn't try to ride it the way it is now, but it will be fine when done.
 
You've achieved a feat. A Harley I like!

I agree that the suspension will be fine, as long as you finish up the bracing, etc. Very cool look man, and very different. I dig it.
 
Kanticoy said:
You've achieved a feat. A Harley I like!

I agree that the suspension will be fine, as long as you finish up the bracing, etc. Very cool look man, and very different. I dig it.

Thanks, I appreciate it!
 
Got everything torn down for finish welding and a few more gussets.
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I finally took the time to make an engine stand to have somewhere to put the engine.
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Last week I totally scored this HS40 Mikuni flatslide on ebay for $26.
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Should work perfectly on my 1200. The only problem is the intake throat is just a tad smaller o.d. than the 40mm CV. So I made up this adapter that is press fit with a little jbweld onto the new Mik and pushes into the original manifold. I had to taper the throat a bit on the engine side to match port with the manifold.
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Then I had to make the new attachment plate that holds the carb to the heads. There is a tiny set screw that goes through the top of the 1/4" plate into a small hole at the top of the inlet.
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Like Pablo, I think I'm going to upgrade to the Buell oil pump while the engine is out to improve oil scavenging out of the cam chest to prevent the excess oil I've had coming out of the breather for a while now.
 
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