Thanks for the responses,
I think i maybe just noticed the smell and the white exhaust smoke one day but the bike had only been running for a few minutes, so like you say just warming up so probably just that.
As for the vibrations i am starting to think its got nothing to do with the exhaust.
On Saturday i stripped down the nose and checked it was all tight and fitted properly after having a buzzing/vibration starting at 3500 - 4000 revs and stays after that.
I have done the headlight mod to remove the metal cone thing over the bulb and more securely fitted the indicators, but still cant figure it out, it still seems to vibrate just as much, when i am riding and put my hand on the tank at over 4000rpm you can feel the vibration on the tank, i am not noticing anything to bad through the foot pegs although my right hand does take a bit of a beating and tingles when i get to work, which is only about a 20 minute ride from my house on normal road (not thrashing it on motorway)
I really enjoy my fazer and only bought one after long time off biking and had one years ago, but i just want to iron out the little niggles i have.
I took it to my local garage last night and they guy there said the exhaust seems fine and not blowing, the pipes are in good and no damage or rusting really.
The garage revved it up on the spot and said he couldnt hear anything but you can still pick it up when its stationary but its still there when its standing just maybe not as loud or easy to hear.
Like i said before its like a buzz/vibration at anything over 3500rpm, bit hard to explain but i have tried holding things and poking stuff while riding incase its a loose bit of fairing or something but nothing yet.
As you can see i dont really know a vast amount about mechanical bits on bikes so any advice would be helpful, even if its just "fazer do vibrate" lol
I will try my best to see if i can get a video of it, although whether you can hear it in the video is anyones guess?
thanks