While you wait for answers, we may have found some information which could help you.
Click here for Carb Settings MccullochMcculloch 2818 Runs fine but spool will not spin?
how can i fix mcculloch mt270 strimmer?
mcculoch petrol strimmer sparkplug ?
How can I replace electric cord on mcculloch air stream electric blower?
2 Stroke strimmer not running?
Where can I buy a strimmer spool spring for my McCulloch MT270X strimmer?