I HAVE A 42 40 HP EVINRUDE CALLED THE LARK IV, WHEN IT IS RUNNING IKN THE LAKE IT WILL JERK AT SPORADIC INTERVALS . IT SOUNDS GOOD AND SEEMS TO RUN GOOD IN NEUTRAL. CAN ANYONE HELP ME OUT . COULD THIS BE TIMING AND IF SO HOW DO I TIME IT?
I just got this old Evinrude on a 68 larson for $40 , haven't even had time and am not sure where to get a manual for it,Anyone tell me how to ck this motor out besides takingit to a shop? Geoff