While you wait for answers, we may have found some information which could help you.
Click here for Self Propeled MowerThe engine on my mower will not shut off?
mcculloch 3540pd starts but only runs 30 seconds?
mcculloch only runs 5 seconds?
change drive cable mcculloch lawnmower?
McCulloch 3540P spark plug fowling?
how to change the blade McCulloch 3540p?