Honda BF9.9A-BF15A Outboard Motors Shop Manual., Page 67Get this manual
HONDA BF9.9A-BF15A
TIMING BELT INSTALLATION
Install the cylinder head assembly on the engine and install the cam pulleyRotate the cam pulley by hand and align its "T" mark with the "T" mark on the breather coverSet the shift lever in "FORWARD" or "REVERSE", rotate the propeller until the crankshaft key groove aligns with the "I" mark on the starter cover, and install the timing belt