Got the plastics removed/loosened. First thing: propped up tank, did a fuel pump flow test. She's still working great - 400 mL in 3 cycles of the engine cutoff switch. Yay!
I still need to test flow after the inline filter.
Fuel tank pulled, air box open. Learned stuff.
When you must pull the fuel tank, usually the fuel pump outlet pipe will drip. Turns out a Dorman vac hose cap, 1/4" size, is a nice tight fit (that's the red thingy).
I used more vacuum caps to protect other fittings that must be disconnected to remove the tank, also as visible reminders to reconnect stuff when I put the tank back on. Example: the tank water drain.
Guess which one is the new filter and which one is the old! Go on, I'll wait.
Ugh. Probably should have swapped it sooner. FWIW, that's about 8600 miles on that old filter. Must have done more dirt than I realized.
The breather filter foam as installed.
Good news! The foam is in excellent shape. It came out in one piece. It is still quite pliable and does not shed pieces.
That aside, you may have noticed a couple photos back that the foam doesn't seal against the airbox wall 100%. There's a notable gap at the pointy part. Is it enough to explain my alarmingly high oil usage of late?
I think I'll replace the foam. I'll get material I can cut to size, so that I can deliberately oversize it a bit & get a nice tight seal.