Click to enlarge

THERE ARE SO MANY DIFFERENT ENGINE CONFIGURATION FROM CHINA THAT YOU MUST HAVE ALL THESE SPEC'S FOR THE 146CC KIT TO WORK !!!! __________CLICK ON PICTURES TO SEE FULL SIZE____________

Click to enlarge@ FIRST YOU MUST HAVE THIS HEAD BOLT PATTERN
Click to enlarge@ YOU MUST HAVE A 78MM TALL ORIDGINAL CYLINDER
Click to enlarge@ AND YOUR ROD'S PIN HOLE MUST STAY 80% ABOVE THE BASE GASKET SURFACE AT BOTTOM DEAD CENTER OF THE STROKE