Run times?

When I'm finished for the day I always suck out any leftover fuel but it doesn't look like even a cc. The needle on my syringe reaches all the way to the bottom of the tank. Then I give it a few hard blasts of air to make sure it's completely dry. I don't ever take it off the mount unless I think there's dirt in it, so taking it apart doesn't happen often. And I have had leaks in the past so a couple of them have the tank and Crankcase put together with black Permatex and I don't want to break the seal. Speaking of post flight cleaning, when I'm wiping the plane down with denatured alcohol I use a syringe with a needle and blast off the back to make sure the screen is clean.

My plan to go out to the shop and investigate this tonight isn't coming true. My hand is all bandaged up after yesterday's surgery. The doc told me to use my fingers as much as possible, so I did some building and gluing last night, but today is worse. All swollen up and sore as a cussword. So it's just the ice pack for tonight.