So I just started changing my own oil (not too tough and glad to save a $100 doing it). The first oil change went great for the first 1,500 miles, then I noticed the shifting got really dificult in the lower gears and the bike started running rough on the freeway in higher gears after about 30 min on the road. So I figured I probably shouldnt have gone with the 5w 30 oil. So I changed my oil again but this time I used the regular 10w 40. It started riding very smooth again and I thought the problem was gone. Well I was on the freeway for about 30 miles, 45 min (its LA traffic) and as soon as I hit the local streets, my bike was running even worse than before. Shifting in the lower gears was almost impossible, the bike would stall at every stop, it was getting pretty dangerous.
Now I know everyone talks about 2nd gear going out, so Im wondering if this may be the case? 1st, 2nd, and 3rd is where Im having the problem. Its basically acting the same as if Im in dire need of an oil change. Also when the clutch is fully pulled in at a stop light, my bike is still trying to move forward.
Note: The bike runs perfect when its still cold and the problems only begins after I've been riding 20 min or so.
So if anyone knows what the problem may be and what the cost to fix it may run me, I'd really appreciate the advice. Also, here are the items I used in the oil change, if it helps.
Castrol Actevo X-tra 4T SAE 10w-40
K&N Oil Filter 303
Im at 16,500 miles only as well
2004 Yamaha YZF600R - Yosh RS-3