I don't really think there's any leak Billy. There are no signs.
Singh, I tried the slow warm up before a good long ride today - in all truth I generally do leave it ticking over while I don helmet & gloves. Also I have 300 yards of very narrow lane with high sides and curves to negotiate before I turn onto a not quite so narrow lane for 600 yards before I reach proper road, so the bike is really barely above idle all that time. I also try to stay focused and mindful - zen and the art of and all that... So I'm not thrashing about like a boy racer.
So today, 70 mile round trip on mixed roads. The odd little pop on the overrun, a couple of good'ns, but random, as usual. Slowing onto the slip road after five miles or so at 75mph on the dual carriageway - not a pop. Yet just chugging along in traffic on rural road - a good bang as the throttle closed.
It's the nature of the thing, and not a nuisance.
On a side note, I realised today I just can't get on with earplugs while riding. Makes me feel somehow disconnected. I had to stop and take them out. The helmet provides some level of ear protection of course. It'll have to do.
Ride on my brothers. Joyful heart, quiet mind.