come june lky2 (Motor spec added)

[Deleted]

where can a larger than 63mm bore be found?

[ravensguildassasin]

here is a 67mm bore. www.drowsports.com/product/614/Engine/Cylinder_Kit/Taida_GY6_150cc_67mm_Ceramic_Big_Bore_Cylinder_Kit
and here is a 65mm bore. www.drowsports.com/product/611/Engine/Cylinder_Kit/Taida_GY6_65mm_Big_Bore_Cylinder_Kit
also here is a +8.2mm stroker crank. www.drowsports.com/product/639/Engine/Crankshaft_Kit/Taida_GY6_8200_Stroker_Crankshaft__8_2mm

it makes it possible to make a 232cc gy6
the best parts is the 67mm bore jug is made to accommodate the stroker crank so no spacing is needed.