crank shaft size

[petenchit]

I have John deere 2004 g110 mower with a kohler cv730 engine. How do you find out the crank shaft dimensions just in case I need to get a new engine.

 

[Barry 1]

I go to Small Engine Warehouse - Repower Outdoor Power Equipment and look in their repower section. It shows the engine is a CV730-0020/CV730-0040 with a 1" x 3- 5/32" crank.
Or you could just measure it