While you wait for answers, we may have found some information which could help you.
Click here for Mower Parts Ignition
brakes on ride on?
Mower starts but fails to keep going?
Masport Garden Tiller, Briggs & Straton 3.5HP?
Masport Rotary hoe - identify the engine ?
How can I fix my Masport 635 4 stroke mower that has a pull cord that won't?
Engine Keeps Cutting Out after 2-3 minutes after starting?