Honda Outboards BF40A/BF50A Service Manual, Page 258Get this manual
PILOT SCREW REPLACEMENT Leave the pilot screw and limiter cap in place during carburetor
cleaningRemove only if necessary for carburetor repair
Removal of the limiter cap requires breaking the pilot screwA
new pilot screw and limiter cap must be installed
When the limiter cap has been broken off, remove the broken
pilot screw2) Place new O-ring on the replacement pilot screw, and install it on the carburetor3} Turn the pilot screw in until it is fully seated, then turn the