Honda Outboards BF40A/BF50A Service Manual, Page 63Get this manual
HONDABF3!5A45A cINSTALLATION
1) Set the special tool on the pulser rotor as shown, and turn the pulser rotor until the "Tmark on the pulser rotor aligns with the "Tt" mark on the cylinder head CAUTION Do not turn the pulser rotor clockwiseTOOL:
56 mm lock nut wrench
07LPA-ZV30200
[6) PULSER ROTOR
(4) "Tt" MARK
2) Set the 10 mm dowel pin and flywheel on the crankshaft and loosely tighten the four 10 25 mm flange bolts3) Turn the flywheel counterclockwise and align the "T" mark on the flywheel with the "I" mark on top of the engine hanger mounting bossCAUTION Be sure to tum the flywheel in the direction of the arrowDo not tum it in the reverse direction
ENGINE HANGER MOUNTING BOSS
4) Remove the flywheel with care not to move the marks out