Re: I am having a huge voltage drop at my starter!!! please help
It could also be a bad connection to engine ground, bad connection to the hot post on the solenoid (from time to time it's a good idea to clean all those connections), or a bad solenoid.
In my own words here's the test that is spelled out in OMC factory service manuals.
Measure the voltage between the + battery terminal and the hot post on the solenoid while someone momentarily cranks the starter, it should be less than about 0.3 volts.
Next measure the voltage across the solenoid terminals while the starter is being cranked, likewise it should be less than around 0.3 volts.
Measure the voltage between the + side of the starter and the output side of the solenoid while the starter is being cranked, again it should be less than about 0.3 volts.
Finally measure the voltage between the - battery terminal and a good engine ground while the starter is being cranked, it should be less than about 0.3 volts.
If any of those values is high then you've found a problem.