The best way is to find a kit made for your moped. They will give you all of the parts you need along with a step by step manual. You could also have a dealer do it for you if it is to hard. But if you bore the bike out, you will probably want to gear the bike a little higher, so the extra power is used well. I would look for a kit to do this.
you read a dictionary to the car. your answer here...
what determines when should bore and engine
The Bore of an engine is the tube that the piston goes up and down in.
std bore is 4.050
The Bore of a 350 cid engine is 4.00, the stroke is 3.48 inch..
4.000" the engine bore size
4"
yes
Primarily the bore size. The 305 has a bore of 3.74 and the 350 is a 4.0 bore. They share the same stroke on the crank. And no, you can't bore a 305 to a 4.0 bore.
.7853x bore x bore x stroke x #of clyinders
I assume you mean engine displacement? To calculate engine displacement, use this formula: Bore x bore x stroke x .7854 x number of cylinders.
90mm
bore is the diameter of the piston and stroke is the length the piston moves in the cylinder.for example if bore x stroke is 1x3 then 1 is the diameter of the piston and 3 is the length of the cylinder.if bore is greater than stroke then it is a short stroke engine.