B Boyde Member Dec 19, 2025 #1 My Stihl 021 starts runs on choke, switch to run, very high rpm for less than a minute then dies. New carburtor, adjusting air fuel does nothing. Any ideas?
My Stihl 021 starts runs on choke, switch to run, very high rpm for less than a minute then dies. New carburtor, adjusting air fuel does nothing. Any ideas?
H hlw49 Lawn Addict Dec 19, 2025 #2 Could have a blown crank shaft seal or leaking crank case where it bolts together.
