I am unsure of what length cable to order?...I recently purchased a 1987 Galaxy Admrial 189 (18ft). The issue that I am having is that the control/shifter cable going from the throttle to the top of the engine seems to be extending/retracting too far and is now broken. When I put the throttle in forward or reverse the control/shifter cable moves about 1" however the shifter bracket only moves about a 1/4". Both cables from the Hi-Lex throttle are the same...on the cable it is stamped "13 ft 04 13 87". Do I order the same cable and make adjustments or do I need to order a different cable? Please help thank you!