As those who know me, know...if I read something twice it'll have a completely different interpretation. Thanks for the guidance.
Like my daddy used to say, "Time sure does fly when you're confused!"
Ill post pics of the jackshaft setup when I get the new pillow blocks (hopefully doing the fit up next Monday night). In all honesty, Monday nights are often the time I undo or redo what I did on Saturday. I kid a lot, but this is actually how my projects seem to go.
The "Saturdays and Monday nights" has been a decent method for me, for quite a while.
On another note; I've been doing a little studying about "torque induced gyroscopic precession". After a lifetime of riding 2-wheels, this is the first I ever new what keeps the things from falling over. It also explains what radical geometry combined with enough wheel/tire mass can do to generate "speed wobble" after change in torque input (a bump, a steering input, or sudden increased power application to the driven wheel). From what I've learned so far, gentlemen, SHIFT/POWER UP GENTLY when the speeds are high!
It also explains the wiggle that often occurs on drag bikes, late in the run when tires and shifting hook up together. In fact, the light bulb went "on" (reading the articles) about a vicious wobble my Buell M2 threw at me, one day, on the 91 freeway. It was a full throttle 4-5 upshift, and the shaking and wobbling was unforgettable! I hadn't experienced that since my days riding flat-trackers on the 1/2 miles.
I'm suspecting this is an ugly deal if the bike has to be leaned while running in a straight line (weight balance off)....any hard shift, at speed, will create torque induced gyroscopic precession because the rotating wheels are not at right angles to gravitational pull (precession will try to turn the front wheel into the lean angle).
If you think it can't have that much force, try the simple "ten-speed bike wheel, spun by hand, trick" (described by physics instructor) for a real shock....don't hurt yourself.
Maybe everyone knew but me, but the good articles I've found on physics websites have really opened my eyes. I need to pay attention to the side-to-side balance (anybody old enough to remember Vespa wobbles?)
Have a great weekend, folks!
JimL