Went for a ride today topped off oil and full tank of fuel i rode for about 1.5 hours and not very hard riding. When i got back noticed that my oil light was on and the level was at 1/4 i didn't notice any oil around the exhaust or elsewhere plugs were not fouled. The sled didn't feel rich made good crisp power from engagement to about 8000rpm,when at idle it smoked alot didn't seem normal. Can this be a problem with the oil cable or something else.