hi dudes ive been on my bike today and when I started it up it reves high for abit them calms down I really need to set it up,if black oils comin threw my exshaust what does this mean its too rich? ive just put putoline gp10 in my gears looked abit thin wonderin what yous think ive been running my gas oil at 150ml to 5litres of gas,all tips n hints welcome lol //