Automatic air vents - central heating...

[Spamlet]

Actually, I've just been recalling the black plastic floats in the Ducati carbs, and, in fact, the tickler plunger actually just bopped the top of the float, cos I've just got a mental picture of the little dent it made thanks to the float being bashed against it all the time by the road bumps...

S

[Dave Plowman (News)]

That's how they all worked on every bike I've owned. Which isn't that many, though. And the last one about 40 years ago.