Hello All,
I have been a part of the forums here for a while now, but I have finally made some progress in my build and think I should document it. I have never really posted anything valuable in this forum, so consider this my introduction as well.
Hello, my name is Ben, I am a 17 year old who works as a mechanic at a local truck shop in Vermont, I race NESC Motocross and broke my radius and my ulna in a race last week, I decided to call it quits on the season and have started my K100 project I have been so anxiously awaiting. So, here is my story....
In July I purchased a K100rs with 65k on the clock, It was in ROUGH shape, unfortunately I had to ship the bike because I had no time to pick it up from the seller, I knew it was a bad idea but i wanted the Turbo Bike and decided to test my luck (seller was also a douche). When it arrived, it looked much worse than it did in the photos (Expected). The previous owner was quite the whackjob, he had some interesting stickers on the headlight (see photos) and carbon fiber wrap on the bike, he crudely painted the fairing which was not even taken off. he also painted the tank rattle can black, right over the stock paint, it also had a very bent brake lever, if anyone has a spare please let me know, I need a new one. It had skull blinkers on it and it just looked aesthetically awful. The first thing I did was look into the turbo which the seller boasted about continuously. I looked in and saw the worst, it was seized. but the bike actually ran relatively well, so I decided I would run it with "No Boost" for the rest of the summer. The bike was really slow so it was hard to not tear into it. The first issue was the taillight, after a couple hours with a power probe, it was grounded improperly by the previous owner, the wiring was all messed up after fixing it the lever switch worked, but not the pedal, so I got ripped off by my local shop for 65 dollars for a new pedal switch. I took off the fairing and decided to run it as a streetfighter for the rest of the summer as the fairing was falling apart. there was another electrical problem though, it would not turn over, and after replacing the battery (The old one was cooked, thanks PO) it would still not turn over, i traced it to a chafed wire creating a dead short. fixed that and it had electric start again. with the tank off, I noticed the previous owner had put in some auxiliary relay, and a bunch of scottie jacks, after a lot of soldering, the wiring was 100% again. I changed every oil (and filter) in the bike and they all looked like they had been used for 2 times as long as they should have been. It has always had a smoking on start issue that I blamed on the rings and the side stand, so i bought a center stand to replace the broken one the PO sold it with, but it didnt fit because the PO put a 160 on the rear :nono , so i added some oil stabilizer (didnt help) and went on riding it, but it still smoked and I was okay with it because I really didn't have anything to lose. It was now street legal, and although it looked HORRIBLE, I rode it with my motocross helmet up until last week.
EDIT: also changed fuel filter and cheap emgo headlight, and none of the gauges were hooked up by the PO (Boost....etc)
I have now started looking into the bike and tearing it down, it is filthy and ive been cleaning the parts I take off. But the turbo has all of my attention, after I removed all the bolts, I had the compressor housing removed, but the CHRA was just stuck into the turbine housing, I had to use an oxy acetylene torch to heat up the exhaust housing and use a porta power with all 10 tons to split it, and the CHRA went flying, unfortunately upon impact, the compressor impeller was ruined, it was already lightly bent on one blade, but now it is junk.
When I looked at the turbine impeller, I knew it was the cause of the seizing, it had literally 2mm of carbon buildup on it, I beleive this is a byproduct of the oil burning on start, because im sure it smoked when the previous owner rode it. so, a message to all turbo owners, IF YOU HAVE A TURBO BIKE MAKE SURE IT DOES NOT BURN OIL, ALSO USE UNLEADED FUEL, to reduce the carbon deposits in the turbo which have caused me a lot of headache.
The IHI RHB52 VC19 turbo was put onto the second gen turbo bikes by luftmiester, it is a bushinged turbo that is super simple, my turbo had about 3mm of both axial and radial play. I have my turbo completely dissasembled and am ready to put a rebuild kit in it, it is really simple, but you need a microscopic snap ring tool.
Rebuild kit that MIGHT work (Ill figure out)(will need different snap rings) =
http://www.ebay.com/itm/Minor-half-kit-for-IHI-RHB5-RHB51-RHB52-Turbo-Rebuild-Repair-Kit-/271401680499?hash=item3f30ccfe73:m:mrDRjOvlW3hC8WnnHFQ1hHQ&vxp=mtrMy plan for the bike is to turn it into a retro-neo queered-out racer with very modern components, but it will have NO chrome and have very moderate aesthetic touches.
To Do List:
Get Compressor wheel and compressor impeller for turbo
Rings on all 4
Repaint some engine parts and the intercooler
Paint tank and queered-out seat
wire speedo and headlight
repaint rims (Gunmetal)
New horn
Make rear frame loop
Refinish crank and head covers
Media Blast a lot of parts
new tires (maybe whitewalls)
Clean EVERYTHING
Clip ons
Spline lube job
new K&N filters
Cut or remove fenders
Make new peg plates**
New cover for inside the head cover (thing that says BMW)**
Make queered-out Seat Pan**
Upholster seat
Custom Exhaust (straight pipe from turbo, will be baffled)**
**= I have access to use a cnc plasma cutter and I am very good at CAD and will be making these parts out of S.S
LOOK HERE
I am planning to use this speedometer
http://japan.webike.net/products/21744359.htmlIm having trouble interpreting RHB's thread, could someone please tell me the bare minimum I would have to do to make it work. I will also be using a warning light bank if anyone could give me advice on that
