51MM Stroker Crank 6V Honda 4 Speeds (Some 3spd) CT70H SL/XL70 & ATC70 TBW0713 tbw0713 TB Parts uses this in

TB Parts uses this in many of their carb kits

CR500 86-01

you will need to have a Clymer or Honda shop manual

- High quality 64mm piston kit that include rings

Tapered seal surface to prevent fuel leaks

51MM Stroker Crank 6V Honda 4 Speeds (Some 3spd) CT70H SL/XL70 & ATC70 TBW0713 tbw0713 TB Parts uses this in***AUTHORIZED TB PARTS DISTRIBUTOR!!!*** We've stood behind these products 100% since we opened in 2005. Best reviews received for a big bore kit hands down! 51MM STROKER CRANK: FITS: All 4 Speed CT70H SL70 XL70, 80 81 3 Speed CT70, and 81 85 ATC70 (turns engines with 88 kits to 108cc). Must use 12v new style pistons and 6v High Volume oil pump with this crank (for clearance).* 51mm Crankshaft with NTN bearings ***MUST RUN TBW0225 OIL PUMP WITH THIS