Hello all, Just got back from weekend away with a borrowed Yamaha 2400. The weather has been very hot & humid up here in paradise, but the Yamy was without fault. The cap was unvented (5YO ). We are still thinking of the 2800 for the 11 litre fuel tank. the thing is slighty lighter, but louder than the 2400. I would be interested in 2800 owner's comments regarding the 12% increase in noise, as most times I don't think it would be an issue. Thanks to everyone for the comments