Vibration at high altitude & high rpms

[SmokyOwl]

So here we are a year and a half later, I'm reviving this thread with an update.

Since the compensator replacement I've been financially struggling and haven't been able to afford to do much investigating, scared of what I might find.  It's been slightly vibrating but rideable, so why mess with it if it's not broke mentality.  I knew the dealership tried to "tune out" the vibration, and this weekend I decided to re-open the case and have the bike dyno tuned.  I figure the retuning would make an improvement or uncover a larger problem.

Unfortunately, it's looking like they uncovered a larger problem.  They found a voltage variation and the vibration increased significantly.  They want to inspect the rotor in case it's lop-sided and hopefully resolve the voltage issue, but they are also going to check the crankshaft runout as well because they're afraid the crankshaft may be "scissored" and separated.  I do feel that this is the core issue, and as expensive as the endeavor is I'm trying to see it as an opportunity for great engine improvements. 

I haven't nailed down much for exactly what improvements I'll be doing, but I'm probably going to be using Dark Horse as it's in the same state that I'm in (the dealership agreed with this is as well) and of course a timken bearing upgrade.  Other than that, depending on cost I might upgrade the connecting rods with lighter weight Carrillo rods.  Much is yet to be decided tho, any recommendations are welcome.

[Ohio HD]

Just my opinion on the rods. For what you'll be using the bike for and the motors capabilities, I'd suggest using Darkhorse H-Beam rods. They cost less, and they'll hold up fine, I run them in my 124". Nothing wrong with Carrillo, they make fantastic products. Just that I think they're overkill in all but extreme running motors.

I hope you find the root cause. It sure could be the crank.