Thanx for the reply Redgum. Rode again this morning, temp was mild, in the low to middle 40's, same thing happened again, in the exact same spot of the hwy about 3-4 miles from the house. The area is straight w/very slight upgrade. (Similarities-two mornings in a row in almost the same location, similar cool temps-about 10 or less minutes after morning start up) A little more background this time. My bike has 5k miles on the clock. The first two changes were done w/Yamalube 20w-40 and Yamaha filters. This change at 5k I changed to a synthetic blend Golden Spectro 20w-50 w/Yamaha filter. Now I know that is a high viscosity, however I do not ride in cold weather and here in the south our winters are mild and short and summers are long and hot. I had this conversation w/my local bike guru where I shop, he is knowlegable, informed me that this 20w-50 would be perfectly fine in my feejer since I don't ride in cold weather and would probably be good for it in our oppressive heat of summer. I wonder now if it may be a bit heavy for the oil pump until the engine/oil warms up. First time did not overly concern me but this second occurence, in as many days has me a bit concerned. On the way home from work yesterday afternoon the light did not come on, it was a bit warmer then, late afternoon in the low 70's so the oil would naturally be a bit lighter at start up and warm up. I likely will not be riding the bike for the next several days because of an approaching cold front, so I will have some time to change out this oil and go back to a thiner viscosity. So, people HELP me decide if you think this 20w-50 is to heavy for the pump, oil level is perfect in the sight glass and still no leaks. The bike runs like it likes the oil, it seems to run smoother and the gear box definately likes this oil better, I noticed a REAL difference in shifting but I don't want to run the chance of damaging my pump or motor. U think maybe it's too early to tell? ride it a little longer? Speak up please! thanx-bd :huh: