I just changed the oil on my 426. After draining all the oil and replacing the oil filter I went to refill the oil. After 3/4 of a quart the oil began over flowing from the filler tube. I checked the oil level and it was ~4" above the max oil level on the dipstick. I started the bike and the level remained the same. I let the bike sit for a bit and went back to check it. When I checked the dipstick while the bike was off and cold the dipstick was dry. I started the bike and the level rose to ~3" above the max. level on the dipstick. Could this be an air bubble or something? Any thoughts on how to fix it. I don't want to run my bike without adequate lubrication and I don't want to take it to the shop if it's an easy fix. I'm new to dirt biking but I love it and really want to go riding tomorrow so any help would be greatly appreciated. Thanks in advance!