Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-42794--1, Page 323Get this manual
6Position engine throttle lever (a) so that linkage (b) is held lightly against stop screw (c) NEUTRAL START SWITCH WIRING 1Secure neutral start switch wires (a) to tiller handle bracket (b) using sta-strap (c)
ACAUTION
DO NOT exceed 14-turn on set screw after it has bottomed-out7With throttle held lightly against stop screw and throttle twist grip at "IDLE," turn set screw of throttle cable barrel in until it bottoms-out on tube, then tighten screw an additional 18 turn 8Secure throttle cable barrel (a) in barrel retainer hole with barrel retainer (b)
2Remove (and retain) nut and lockwasher (a)bolt and washer (b) Discard jumper wire (c)