While you wait for answers, we may have found some information which could help you.
Click here for Ratio Stroke Petrolhow can i fix mcculloch mt270 strimmer?
McCulloch MT270X ignition coil?
how to change mcculloch sl trim head?
how do i get my pull start to recoil ?
How do i keep my strimmer running?
How can I fix my weedeater?