I bought a new leftover 2006 CRF450R. I did a break in woods ride for about 45 minutes with a couple stops to let it cool. I didn't beat the snot out of it as some suggest, but I didn't baby it either. I changed the oil and filter and the transmission oil with Honda GN4 10W-40 standard oil. I added an additional 50cc of transmission oil for supermoto duty. I then rode 3 supermoto practice sessions of about 12 minutes each running it fairly hard. No rev limiter, some full throttle. Didn't notice excessive smoke. I did another oil, filter and transmission change with Honda HP4 semi-synthetic with moly in the engine and the non-moly semi-synthetic HP4 10W-40 in the tranny. I again added about an additional 100cc of oil in the tranmission for supermoto and went at it. I ran it hard and accidentally touched the rev limiter twice. Throughout the session the engine puffed blue smoke every time I blipped the throttle and it smoked lightly (blue) under hard throttle while running supermoto. Any suggestions. The oil level measurements were done with a ratio rite container and the engine oil level was exactly to Honda's specs. By the way, the power is fantastic and it runs great. It's my first Honda. I rode my buddies KTM 525SMR and my CRF actually felt stronger but was a little TOO responsive for smooth drives out of a corner while leaned over.