Hi, just a couple of quick questions regarding the bike. I'm missing the little oil slide that comes with the toolkit, tried searching ebay and other places but can't seem to find anywhere that does one. I know I could use something else but would like to get the original if at all possible. Need to do an oil and filter change, happy with the 10w40 castrol stuff i use but does anyone have any preferences on the best filter or is the stock yamaha one the way to go? Also the chain and sprockets look like they've seen better days and would like peoples opinions on what they buy. Finally iridium sparkplugs, are they worth buying for this bike?