Honda Outboards BF40A/BF50A Service Manual, Page 113Get this manual
HONDA BF35A45A
VALVE GUIDE REPLACEMENT
1) Chill the replacement valve guides in the freezer section of refrigerator for about an hour2) Drive the valve guide out of the combustion chamber side using valve guide driver (special tool)
(1]1 S';:;;OL VALVE GUIDE DRIVER, 5.5 mm
07742-0010100
CAUTION
When driving the valve guides outbe careful not to damage the head
3) Remove the new valve guides from the refrigerator one at time as needed4) Install the new valve guides from the valve spring side of the cylinder headDrive each valve guide as shown5) After installation, inspect the valve guide for damageReplace the guide if damaged
I So TOOL I
[1] VALVE GUIDE DRIVER5.5 mm
07742-0010100