02-04-14, 01:03 PM
i injured my left knee quite badly last summer and couldn't ride for some months. when eventually the swelling subsided and i could ride again the fazer was reluctant to rev freely and was definitely down on power. some 'spirited' riding and a good motorway blast saw it running well again.
the other usual suspect is something (partially) blocking the air intake under the seat.
is it clean enough?