For ease of conversation, lets refer to the crankshaft on the left as, original, and the one on the right as, new style.
My main question is do they interchange? If not, what's the new style supposed to fit in? 2 of the original style cranks I have came out of wide front mount blocks. 50mm width between the front mounting studs. I'm guessing maybe the new style crank fits in the motor blocks with the narrow, 40mm or so, front mounting stud width. The original crank has bolt on fly weights, while the new style has one piece wheels.
These are the dimensions
original crank assy, 1574g total weight
105mm total width
90mm flywheel dia
New style crank
1392g total weight
101mm total width
89mm flywheel dia.
My main question is do they interchange? If not, what's the new style supposed to fit in? 2 of the original style cranks I have came out of wide front mount blocks. 50mm width between the front mounting studs. I'm guessing maybe the new style crank fits in the motor blocks with the narrow, 40mm or so, front mounting stud width. The original crank has bolt on fly weights, while the new style has one piece wheels.
These are the dimensions
original crank assy, 1574g total weight
105mm total width
90mm flywheel dia
New style crank
1392g total weight
101mm total width
89mm flywheel dia.