Because 754-0350 is a BELT-V 5/8 X 64.5. We need the actual model of the mower which start with 13 or 14. Many MTD riders the fuse is located on the rear panel near the starter solenoid. Usually a no start on these mowers is either a safety switch or starter solenoid as the mower runs by starting at the starter the fuel solenoid at the carburetor is getting power.