Got it to 45mph this morning in 5th - I can't get above 40mph in 4th without the engine seeming like it'll explode! Not vibrating that much but feels like it's going way too fast for comfort. This might sound daft too but the bike smells HOT after a 15min ride. The exhaust isn't red hot but it's so much different than my old VanVan. Can't red line it - hits 4-6000 RPMs tops I think (tried keeping an eye on it this morning, will check again tonight). Dread to think what it would be like any higher. Exhaust doesn't seem smokey at all - perhaps there's sometimes a slight pop to the exhaust but nothing noticable. Fuel filter and air filter are both brand new. Mechanic I had out to look at the bike when it was a none runner said not to bother oiling the filter as I RUINED the last one with some sticky spray stuff which stopped all airflow. Might be another reason it's a bit lean? Or rich The slight bogging from idle has returned this morning but much less noticable than before so maybe further tweaking is required! Cheers! James.