A sportster engine has the trans bolted to the engine as well. As to using a sport bike trans, that would be an idea. The only oiling for the trans is a splash oil. The shafts run on ball bearings. So if you could enclose the case, you'd be all set.
Lawn tractor gearboxes can't be used due to the torque and speed. Transfercases are a no-go as well. As they do not work for shifting at speed. On Thu, Apr 3, 2008 at 1:38 PM, john fisher <[EMAIL PROTECTED]> wrote: > > > Jeffrey Blamey wrote: > ... > > > Packaging is a big problem with the Harley trans but it is separate > > from the engine. > > plus they are heavy and expensive, if you started with a Sportster, this > might be a good idea though. > > > I haven't seen an adaptation of a engine/trans that > > was clean. I recall someone lopping off the cylinder of a jap engine > > and feeding the chain down to the crank, > > this is what I was assuming. something like replacing the crank with a > sprocket on a straight shaft. > but it might make more sense to find a crankcase with enough room to chop > the whole front off and mount the motor where > the crank was, thus eliminating a shaft and chain drive. if there is room. > or > using a Guzzi or BMW with separate tranny IIRC, that seems much easier. > > > . Any other ideas out there? > > hmm lots of heavy stuff like transfer cases.... > >
