G/day all Have a 2010 F800GS. bought 2 years ago new. with 63,000kms Its summer time here in Oz, was returning from a m/c get together in Bright, (North Eastern Vic). It was hot, 37C,(100,F) and I decided to enjoy the road before F**kW**s shut it down to 80kph (50mph) next month. Was going fairly hard, pulled over for a roadside relief stop and a photo. Shortly after the bike suddenly died. Backed off, pulled the clutch, and the motor restarted. This got worse, (more frequent loss of power, then sudden power, not fun on a chain driven bike. ) I'm talking of at least 20kms) Coasted downhill into Bruthern in neutral with the motor running, took on 11 lts of fuel, and Bingo, no further stop/starts back home. My guess is that the gas/petrol was vaporising because of the extreme heat and fast riding, with a tail wind. Anyone else experince a similar thing?