Re: 3-speed 6-1/2hp Monarch
here is another picture -- Well, I learned to hit upload each time--OK !
The 3rd pix shows the jackshaft driven by the tranny ready to have the new 18 t. sprocket welded on. The last one shows the S-A tranny in it's yoke on the foot rest frame. It is slotted for rear removal to change belt. Notice the handlebars welded to the footrest. This is typical of how we built bikes in Bartlesville OK clear back to the '40's. Very strong. Slip-belt idler clutches were also the norm. In the previous post the stud sticking out from the seat tube mounts the jackshaft pictured on a bicycle seat, #3. A trampoline spring pulls the idler pulley to the belt. A WonderHorse one works OK too. The #2 shaft actually is in a socket on the seat post (which was moved rearward for the engine) and can move slightly and a turnbuckle to the seat can slightly control chain lash. The clutch and brake peddles have grease nipples on the pivots, the rear brake chain spring connects back to the chain. The clutch peddle is used for starting. A M/C clutch handle and cable is used in riding. The exhaust pipe is a trampoline tube. I willl show the completed ass'y in next post.
Last edited by trackfodder; 10-20-2012 at 10:49 PM.
Reason: description of pix