Honda BF35A-BF45A Outboard Motors Shop Manual., Page 87Get this manual
TIMING BELT INSTALLATION: 1) Set the pulser rotor over the camshaft and tighten the 10 32 mm flange bolt using the special tool as shownTORQUE: 57 N-m (5.7 kg-m, 41.2 ft-lb) TOOL: 56 mm lock nut wrench
07LPA-ZV30200
2) Install the timing belt guide plate, 25 14 mm woodruff
key, and the timing pulley on the crankshaft (page 6-31
3)Attach the special tool to the pulser rotor, and align the
"mark on the pulser rotor with the" mark on the cylinder head by turning the pulser rotor counterclockwise (in the normal rotating direction of the camshaft)CAUTION
Do not rotate the pulser rotor clockwise4) Align the "mark on the timing pulley with the "I" mark on the cylinder block5) Move the timing belt tensioner to the position of slackening the belt and install the belt on the timing pulley side first, then install on the pulser rotor