about a week ago I did some casting for a friend look at the nice bunch of parts laying there copy's of Honda CR750 brakepedal, shiftlever and small change arms for the right-foot-shifter conversion.
Still finding it funny to have all these rare parts, usually made from "unobtainium" but these I just made myself.
anyone who has RSC style footpegs that I could copy?
Today I had another casting session, and this is the result:
Some of these are for me, some are for sale.
takes a lot of time to replicate existing parts, where it should be made with a two-part mold...officially. Probably triples the amount of work, but still it is nice to look at a bunch of rare new parts that a year ago, I thought I'd never be able to find. And now i'm making them myself.
My newest project, aluminium casting. Because all the cool parts I want on my bikes were made from sandcast alloy back in the days, and now are not, or seldom for sale anymore. Today was the first attempt to create a casting and it turned out pretty well, if I do say so myself. Still have some work to do in the form making department, but this first result makes me want to do more.
Form ready for casting, what do you think it will be:
Just poored:
just pulled the object from the sand:
And machined to fit a (somewhat modified) SS50 ignition cover:
It is a bit higher then standard, but that is to be able to mount a 12v crankshaft. And because I made a simple form for a first casting attempt. Now to refine the process and make a few more covers before I start doing something else, like rearsets, cilinderhead covers and brakeplates.
A bike I built, rode and then sold. Sometimes I miss it, it rode really nice, pretty comfortable, quick and it looked pretty cool. Very retro 80's caferacer with magnesium wheels that just about everybody in the dutch 4-stroke community hated. I think they were just accustomed to the spoked wheels of the SS50's.
this is pretty much how I bought it and rode it for a while, the only modification by me were the sporty handlebars. It came with the giuliari seat.
Starting the transformation, this is a picture of one of the first complete mock-up's When I bought the bike, it came with a lot of extra parts, including the tank with Bultaco stickers, I originally planned on riding it like this, just to piss people off with my "bultaco"
And the endresult, I changed the exhaust endcan later on, so the bike could breathe better, but I have no nice pictures of that.
some specs: -ktm magnesium wheels -CB750k1/6 front brake caliper and master -50cc (still a legal moped) -5speed xr80 gearbox -CB50F camshaft -16mm kei-hin carb -slightly ported head and rounded valves -adjustable clipons -Ducati seat -homebuilt rearsets with 10mm spanner as shifterpedal
I've changed my plans. I have an SS50 motorcycle (2 actually, but the second one isn't ready yet) and I collected a lot of original 50cc 5speed parts for them, like alloy cilinders and the heads with big fins and ports. But now I've ridden with a 50cc and a 70cc engine on public roads and I just can't keep up with modern traffic. So I've fallen off my beliefs and started with the bigbore stuff. But still not the kitakkiewakkie-craft, just cheap aftermarket stuff.
I've now built a 110cc SS50 engine using a 52mm stroker crank and a 52mm piston.
specs: - 52x52 110cc - Old Type 70cc head with big fins (NOS), ported - C70 camshaft - advancing flywheel, 6V ignition - 2plate clutch with alloy centre - 5speed gearbox with modified first gear - 20mm carb (until its broken in, then I might go bigger)
Today I built this engine under my SS50 motorcycle and took it for a testrun. Nice torque, lots of power, in fact, more than the clutch can handle. So at the end of the day I took the motor out again, will need stiffer clutch springs and also need to look at a small issue with the gearbox. But this promises much good things, I allready have plans for a 125cc 54x54 engine.
And another crazy idea, a very much cc old style C90 with the 6V engine. My S90 has shown these old things can be quick, now I'd like to use one of these old beasts to kick the crap out of some of those modern chinese 125cc+ bikes. With the parts Ralph has, we could get upto 180cc, or just 170cc with the cranck he would sell to me. but still that is more then the china-crap. Now just to find a C90 to start the project...... if someone in holland has something, you could let me know.
crappy sketch:
I won't be actively pursuing this project, as I still have a couple of other ones that are unfinished, but this would be a fun quick one.
I made 2 different faces for my homemade rev counter, they are based on what I made for my 50 a few years ago. A standard Honda tacho with a homemade CR110 replica face. I cleaned off all but the scale and made something modelled after some RSC tacho's I've seen on the internet: This looked a little plain to me, so I also made something with the actual RSC logo: These are just normal printouts for now, to get an idea of what it would look like, but now I'm not sure what to make. RSC in logo or text....what do you think?
Finally my tools are in. Original Honda crossheaded bolts are different from philips or regular crossheads So I ordered the original Honda workshop tools. This is worth the money, it really makes working on your old Honda easier. If you want to order them too, the Honda partnumers are: 07603-0050101 for M5 and smaller bolts. KL1696 for M6 (engine bolts) It did take a while because the big size was in backorder for a long time, so be patient.
