I notice that on the TPI or throttle position sensor, there're 4 holes, but only 3 screws are used. I see all Optimax are like that. Why aren't 4 screws used, but only 3?
My outboard serial number is OT136125.
I notice that on the TPI or throttle position sensor, there're 4 holes, but only 3 screws are used. I see all Optimax are like that. Why aren't 4 screws used, but only 3?
My outboard serial number is OT136125.
So that the lever can actually move through the necessary stroke range that is generated by the throttle. If a 4th screw was installed, it would impinge on the movement of the lever.
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
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