While you wait for answers, we may have found some information which could help you.
Success
Message
need adjusting screw?
I Have a pro mac 610 w/elec.ign. has spark wont start?
where can i get a chainbrake spring?
Spark Plug?
McCullough 338?
mac 280 b?
saw wont keep runing?
McCulluch mac 3200 chainsaw?
service depot?
Mac 3516 fuel screen in carb?
looking for sem 809 201 51 type am 32 ?
carb settings 4 a mcculloch mac 436 chainsaw ?