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    Changing Lower Unit Gear Ratio (PROBLEMS??)

    I have a 1993 Mercury XR6 150 on a 1994 18 foot skeeter and have recently replaced my factory 4.25 inch mercury gearcase that had a 1.78 gear ratio with a Mercury 4.75 inch gearcase with a 1.87 gear ratio and I am running a 4 blade 24 pitch tempest prop. I ran it today for the first time and it...
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    motor running too many RPM 6800 (prop?)

    I have a 1993 mercury XR6 150 on an 18 foot 1994 skeeter and I just put a new large gearcase lower unit and prop on it. I took it out today and it ran great, but it wants to run 6800 RPM and that is way too much. I have a small hub merecury tempest 24 pitch on it right now. IS the fact that it...
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    1993 Mercury XR6 lower unit troubles

    I have a 1993 Mercury XR6 150 that decided to eat the pinion gear. I have been told and have read that the lower units on this year are junk. They have a 4.25 inch gearcase instead of the larger 4.75 inch case. I wanted to know if anyone could save me some research and tell me what large case...
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