Check the listing for details. Yamaha MX100 DT100 Rt100 Stainless Bolt Screw Engine Kit Set Polished. Condition: New. Listed at 32.05 USD. YAMAHA MX100/DT100 (1974-1983) and RT100 1990-2000 This kit contains all the screws,nuts, washers, and bolts on the exterior of the engine. All bolts/nuts HAND polished stainless. this kit is all socket allen for ease of use.. all allen heads have knurls removed. The whole kit is sorted, labeled and includes instructions. perfect for your basket case,restoration, or what have you. This kit is specifically designed to fit all YAMAHA MX100/DT100/RT100 not just a random assortment of bolts. kit includes: YAMAHA DT100/MX100/RT100 a: crankcase halves 13 pieces b:shifter cover 4 pieces c:clutch/oil pump cover 13 pieces d:stator cover 4 pieces e:sprocket cover 2 pieces f:exhaust flange 4 pieces g:reed cover 8 pieces 48 pieces total here's a pic of a similar kit. this is not actual kit, dt/mx/rt100 kit is very similar