152fmh Engine Service Manual

Spray carburetor cleaner through all internal passages, the main jet, and the pilot jet. Use a fine copper wire or a specialized jet-cleaning tool to clear stubborn clogs. Blow compressed air through the circuits to dry them.

Remove the 17mm drain plug located on the bottom of the crankcase. (Note: Do not accidentally remove the angled 14mm spring-loaded cam chain tensioner bolt). 152fmh engine service manual