I also have a 2003 Yamaha raptor 660r with modified racing parts. Has 686 big bore
Freshly rebuilt carbs with shindy racing rebuild kit
Fresh oil change
Fresh spark plug
Valves were adjusted everything in spec
Runs really good starts right up even when cold
No title clean vin, old owner gave me a title with the bike however I didn’t check it till I got home and the last 6 numbers don’t match u can have it if u want.