Put the bike up for the winter, got plans and parts for some maintenance- steering bearings, lubes, etc. No biggie.
Wow. No way I would put my bike up if I lived in the Carolinas. Heck I'm not really putting it up again this year (up here in New Hampshire) in hopes we have another warm winter like last year. But the cooler months do give us a good opportunity to get after some of those bigger maintenance items that are due.
In preparation for my 75k valve check I went through a full seafoam decarbonizing today. The idea here is to make sure that you are measuring the actual valve clearance, and that the exhaust valves are fully seating metal to metal, otherwise you could get artificially large clearance measurement, or even worse... normal measurements from valves that should really have been reshimmed.
I wanted to use the spray stuff in the intake, but that is a no-go with the way the intake runners go upwards. So instead, I dumped a full can of seafoam into a nearly empty gas tank, and then started and ran the engine to get it warm. Lifted the tank and pulled off all 4 vacuum lines and started it again. It will run at a fast idle with the 4 vacuum leaks. Used the straw to spray goodly doses of the Seafoam right into each of the 4 vacuum ports. After I'd got a good amount in there shut the engine down and let it soak for 5-10 minutes. Repeated a couple of times.
Managed to generate a few sizable black clouds, so the fact that it was cold and windy today was a plus (no neighbors out in their yards, and the wind blew the sooty clouds away pretty quickly. Each reiteration the black cloud got smaller, which I take to mean there is less and less carbon being exhausted. The final step, after re-sealing all of the vacuum caps, was to run the engine rpm up to ~4000 and hold it there, still pumping the seafoam heavy fuel through the injectors and combustion chambers. More black clouds. Repeated x3 and the final time the exhaust looked almost normal. Dilute the seafoam in the tank with a fill-up and she should be good to go for the valve check.