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06-15-2022, 07:15 PM #1
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90 HP Yamaha prop cotter Pin Size.
Going to change the prop on the pontoon at the lake and figured I should have a spare cotter pin incase the original gets damaged during the removal, anyone know off hand the size? The motor is a 2018 90 HP 4 stroke. If the boat wasn't 3 hours away I would just do a visual but I want to pick one up before the weekend. Thanks
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06-16-2022, 04:05 PM #2
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The biggest Home Depot carries is 1/8 diameter in stainless (various lengths), that seems a little small
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06-17-2022, 01:05 PM #3
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I had a 2 stroke 90 on a pontoon boat and that took a 5/32 by 1 1/2. You could just use a drill bit to get the right diameter and then measure across the castle nut and add some.
1971 Sidewinder 14 SS w Johnson 90 v-4
1959 Texas Maid Falcon w Mercury Mark 35A
1981 Sylvan Sportster w Johnson 85 v-4
2006 Harris pontoon with a Yamaha 90
1969 Sunfish sailboat
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