RSV4 Smoking on overrun

Sep 2016
Northants uk
Hi Guys

After a Lowside on track my bike is smoking on the overrun,

Ive cleaned the air box of oil, removed the inlet and cleaned the secondary air system, checked the crank breather seal on the generator side all appear to be fine. Bike dosnt smoke on idle but as soon as you take it up the road over 8k revs the bike blows oil out the exhaust.

Im going to do a compression check on it next but didn't know if anyone else had any ideas what else to check ??

Its a 2009 RSV4r