Honda BF35A-BF45A Outboard Motors Shop Manual., Page 59Get this manual
SHIFT ROD ADJUSTMENT 1) Move the shift lever to the "R" position and be sure that the shift link is in the "R" position, tooIf either or both the shift link orland shift lever islare not in the "R" position, adjust as follows
[21 "ft" POSITION
111 SHIFT
1SHIFT LINK 1
2) Move the shift lever to the "N" position3) Loosen the lock nut and adjusting nut interconnecting the shift rod and B, and disconnect the shift rod from the shift rod BMove the shift lever to the "R" position41 With the shift rod lowered to the lowermost position, turn the adjusting nut and insert the shift rod into the adjusting nut until the length from the lock nut end to the tip of the shift rod is mm (0.3 in), then tighten the lock nutAfter adjustment, be sure that the shift lever moves to each position smoothly