FRAME NUMBER LGT17H---09GN---2204---SER.no. on frame YC01013 4B25111 MOTOR TAG ser.no. 14019391 spec no.24320There are two methods. There should be a tag on the front left portion of the frame. Grab the numbers off this. Also you can read the numbers off the engine tag. If the engine is original the codes on the tag will indicate the year of manufacture. Get those and come on back.