Sprocket mounts etc-
Actually, I had designed a sprocket mount but screwed up the prototype- totally different from the manic mechanic design. As it is, I had to drill new holes in the happy time sprocket to fit the mount- no big deal. No, mine is a three-piece operation that uses the existing nine holes in the stock sprocket. The last of the six bikes arrived today, the motor kits are due on thursday but I am still waiting for the aluminum stock to show up. I will document the mounts as I go, you will see for yourself that they are somewhat unique. Feel free to copy, they cannot be patented as they are but a variation of a common theme and I am certain that they infringe on a previouse patent- but they will be a 5 station operation for any C-N-C shop as opposed to the 2 station operation that the manic mechanic mount represents.
Propane? Yes, I've seen those weed whackers in hardware stores- there ARE possibilities there. I now understand that the popularity of the black anodized HT motor kits is because they hide the oil stains better. As for raw guts, I belive I have the best kind of courage as I have no idea what I am getting myself into- confidance born of ignorance and all that. I DO have the advantage that another industrialist was a friend of mine before he died- he sold me on the idea of mass lost wax investment casting having pioneered it in steel. Everybody laughed... now those who did not follow suit have folded. Seems in aluminum this ought to be a natural as I can use a gypsum product for the mold instead of slip clay- total investment falls into the hundreds, not the hundred thousands. I can build a propane smelter from a 55 gallon barrel with cast iron dippers and wrought iron clenches- easily cast 4-5 mills at a throw. Slow heat curing of the mold allows you to recover your wax. Gypsum can be re-ground. All a matter of designing and perfecting the master design that you pull your silicon molds off of- THESE are used to create your wax masters. 2 or 3 man operation, throwing casts that require a MINIMUM of milling... am I missing something here? Hmmmm... MIGHT step into 200-300 cc motorcycles from this if I earn enough $$$. Do them in propane but keep the technology primitive... trapeese springer forks on welded aircraft tubing frames styled after 1930's machines... but THAT's another pipe dream...
the Old Sgt.