You can get a 100, I just installed one yesterday. When I get home, I'll get you the Yamaha part number. 65 is the start jet, not pilot air jet. As far as what is needed????? Later Bill ------------------ 86TT225, 99WR, WR timing, throttle stop trimmed, air box lid removed, White Bros head pipe, silencer and air filter. Odometer and headlight removed. Moose hand and mud guards. YZ stock tank and IMS seat. Renthal Jimmy Button "highs" and Renthal Soft half waffle grips. AMA, SETRA.