Sure! Gremlins. These critters love to dis-assemble stuff on machinery. They had a population explosion back around WW-2. They kinda died off mostly since then, but now they often have community nests in Harley shops and HD clubs. HD riders use tiny tinkling bells on the bike to ward off the gremlins, but with mixed results for the bells.
I replaced the water pump on my 2008 AE 56,000 miles. I found a low mileage (9K) 2018 pump and ordered both O rings, coolant recovery tank. I noticed mine was cracked and found a few drops of oil in it. The mechanical seal in the bearing housing failed letting oil by but no coolant leaked from weep hole. Thanks to "Red" info that in 2013 Yamaha finally started to sell completer water pumps vs pressing bearings out to replace mechanical seal in housing. I used my 2008 cover so the color matched.
I noticed a few drops of oil on the shop floor from setting on center stand this winter. It was leaking out of the water pump bottom drain bolt with copper washer on the pump. I drained the oil and replaced the pump and used O ring lube and installed it and flushed old (2 years) antifreeze with distilled water .I flushed it twice and heat cycled it two times each flush, to remove all the oil green antifreeze out. No oil in antifreeze, I used clean drain pan. This time I used Honda Extended Life antifreeze looks blue FSM said don't mix different antifreeze.
While I had the fairing off changed/bled clutch fluid and new oil/filter and new rear end lube. Rode it 50 miles checked coolant tank after it cooled off, at full line .Replaced side fairings and rode it another hour What a PIA on a Gen II just to get too radiator cap not one of Yamaha better idea's.
The brake fluid still looks clear see penny in master cylinder and used Rayzerman ABS switch and activated the ABS pump several times. Getting better with removing the fairing and replacing it correctly, Ready for Sunday ride with member " Maximrebel " and several others.
I installed a PCV ( game changer), Yosh R-77 branded pipes and a heated corbin seat as well as a oil change now I still have the new brake lines, speed bleeders, kisan signal minder, highway pegs and next week I will get a McCruise control, Healtech quick shifter and a new wind screen.
Oil change, clutch lever service, greased a few pivot points.
Big one today was the CCT update. That was a pain in the ass. The bolt closest to the frame was a bitch to get loose and out. Ended up cutting a cheap 8mm wrench in half and getting it started that way. Managed to drop a 10mm socket IN the frame, of course (the part with the hole in it for you to tighten the bolt on the end of the CCT). Luckily the frame is aluminum and my sockets aren't. Got a super strong magnet and my tweezers and got it out, thankfully. Took her out for a quick ride. Didn't notice any difference in sound. Old one definitely didn't have any paint dots. Glad to have the peace of mind it's changed though. Bike has 57k miles on it.
Replace the rear shock on my 06 series II with a new Series III Shock yesterday. Wow what a difference. Only had time for a quick 150 km run but what I difference. I am 250 pounds and 6' 1", so much smoother ride and I have not dialed it in yet only left it at the factory settings. Will wait until I do a longer run to dial it in properly.
1 - Removed my hardwired Garmin mount.
2 - Removed the battery tender.
3 - Added a Eastern Beaver PC-8 with FJR wiring kit.
4 - Rewired both the Garmin and tender to the PC-8
5 - Added Clearwater Darla lights to the front forks.
6 - Changed the engine and differential oil.
7 - Flushed and filled the coolant system.
8 - Replaced the air filter.
I recently purchased Delkevic 17" Tri Ovals. At first I wanted to install headers too, so I took the plastics off. After talking with Ivan, I sent them back. I figured while the plastics were off, might as well upgrade to LED Headlights.
So today was re-install the ECM, upgrade the LED's, and re-insall the plastics. Took it for a short spin to get some gas, and run the little leftover from last year out of it. Early impressions of the tune are much improved throttle response, and no popping on decel. More to come on that. The slip ons were quiet (baffles in), but noticeable difference in tone. Waiting for night time to evaluate the headlights. The beam pattern on the garage door was similar to the stock halogens, with a nice sharp cut off for the low beams.