I need a bit of advice please. This summer I was standing a Patriot Guard flag line for the funeral of a fellow Viet Nam vet and had road my Trike and trailer there. On the ride home, I saw a huge hole in my lane, where a chunk of concrete was missing. At 65 MPH and a car beside me, I could not change lanes or stop fast enough. I had no choice but to go through the hole. My trike made a load "Bang" and my trailer bounced into the air. I stopped as fast as I could to check for damage, but didn't see any. When I fired up the trike and eased out the clutch, I heard a low "growling" noise coming from under the trike. Needless to say, I was ticked at DOT for not fixing the huge pot hole. In neutral, the engine sounds fine and all the gears are there, but now there is a "lag" or delay in clutch take-up between gears that was never there before. Everything is fine until I let the clutch out and there is a growling noise in every gear. When I got home and got it on my cycle lift, I had a friend hold one rear wheel while I checked the rear axle backlash. It was tight. I then put the transmission in 1st to check the driveshaft free play (it is about 1/4 turn back and forth). I loaded the trike into my trailer and took it to the 2nd. oldest Honda dealer in the nation for repair. I was astonished that after the head mechanic road it and then the dealership owner road it, they both said they thought there was nothing wrong with the trike, but they didn't understand what would be causing the "buzzing" or low vibration in the handlebars. The quote I got to tear the trike apart to try and find the cause of the vibration, I might as well buy a new bike. At that time, I had 23,000 on the trike and it was super-smooth and super-quiet, and now, with just under 30,000, this noise and vibration continue to a point where I got out my old Air Force mechanic's stethoscope to listen all over the engine for the cause. The alternator was the only thing that made a lot of noise in the stethoscope. It sounded like marbles in a tin can and gave me pause for concern, except the major noise cannot be heard until the clutch is let out with the trike in gear (every gear, any gear). Thanks for reading this novel - - -I haven't written this much in years.