Yamaha hydradrive prop

Berte · 19 September 2022, 14:19

Could anyone please let me know what size prop generally is put with a Yamaha me 421 and single prop hydradrive leg. Single engine set up Thank you.

beamishken · 19 September 2022, 16:22

You might need to be a bitmore specific about the boat type & size theres a range available but it has to be a yam prop. Iirc my 7.4m delta ran a 19pitch

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Berte · 19 September 2022, 20:34

Thank you. It's a 9m ribcraft.

Berte · 19 September 2022, 20:38

A very rough idea would help

paintman · 19 September 2022, 21:10

Unless you can find someone with same boat/engine combination probably best to contact Ribcraft with the full spec of your boat & engine combination & see what they suggest.

https://ribcraft.co.uk/rib-boat-models/ribcraft-9/

beamishken · 19 September 2022, 23:45

I'd Start with 17 but it may run a 19 just prop so you can get 3800 -3900 rpm at wot with a light boat

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Berte · 20 September 2022, 11:15

Thank you. I'll start with trying to find a 17 x 19 inch then and run some trials.

beamishken · 20 September 2022, 20:05

Quote:

Originally Posted by Berte

Thank you. I'll start with trying to find a 17 x 19 inch then and run some trials.

Theres a guy from Antrim posts occasionally on here as Paddyd51 maybe worth a message as he does a bit with Yamaha drives, he might have something to help you or maybe know someone with something
If he doesnt respond to a pm I have his no somewhere if you message me I'll send it over

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