Hi guys, just want to know if something's possible... Backstory: Tonight filled up at Shell servo (don't know if I'll trust them again...). Filled up pretty darn full now that I think about it. Rode for 15k's without incident. Switch bike off for 10 minutes, ready to leave mate's house again. Start bike - bike dies straight away. I figure it's somehow flooded (engine it still plenty warm), start it again and give it a good rev to clean out the 'whatever'. Bike comes good, we move off - suddenly bike is lagging badly. Like some cylinders are missing. It felt EXACTLY like when you start your bike and it's super cold and you twist the throttle a bit and it doesn't really respond, it just kind of bubbles towards higher revs, but doesn't want to get there (like me at about 5am... *am totally surprised the bike didn't tell me to f***-off and go back to sleep*). -Except while moving. So bike was super slow, I throttled off and it seemed to come good so I got back to catching up, but then bogged down again. Same thing happens until I can catch up with Laurie and Scrambles at the next set of lights - flip the visor and explain. We pull into a car-park, turn bike off. Start again and give it a good rev. More test revs, higher and higher. Seems fine. Ride on, no noticeable incidents from then on, and on the way home from the Ranch it was perfect. So I have 2 theories: - crappy fuel. Damn you Shell, ya damn damnity damned damndified vendors of crappy dungleaded. OR - by overfilling the tank, under acceleration the fuel was pushed back sealing off the cap, failing to allow a vacuum created by fuel being taken from the bottom to be alleviated by inflow of air. The vacuum caused fuel starvation to the engine, causing what I described. This would also fit with why it seemed to come back when I throttled off - fuel moves forward = cap can breath =, fuel not restricted. So apart from carrying on thinking I know everything and have adequately explained my problem using a word that has 2 'u's in a row in it [making me seem like a freakin' NASA scientist or sumfink], I figured I'd check the tome of knowledge that is Netrider. Is it likely I just overfilled the tank?