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Old 21 April 2005, 12:13   #1
Country: Sweden
Town: Göteborg
Boat name: Trollhajen
Make: Rapier
Length: 8m +
Engine: Inboard petrol 330hp
Join Date: Apr 2005
Posts: 1
Yamaha Hydra/Stern drive trimcylinders?

I have this unusual inboard configuration, Yamaha 7,4 (330) -96 with a hydra drive.

Does anyone on the forum have one of these units?

Does anyone know where to look for a good used trimcylinder?

Gothrib is offline   Reply With Quote
Old 22 April 2005, 14:28   #2
Country: UK - Scotland
Length: 10m +
Engine: 2x610hp jets
Join Date: Apr 2004
Posts: 74
try boats and outboards in spares section..

tonka is offline   Reply With Quote
Old 22 April 2005, 16:37   #3
Country: Ireland
Town: Dublin
Boat name: WIZARD
Make: REDBAY 7.4
Length: 7m +
Engine: OPTI 225
Join Date: Aug 2002
Posts: 417
as far as I know , the Hydra drives are all the same , whether it on as 165hp diesel or 240hp diesel , So I asume it will be the same for the petrol .... These Yamaha petrol engines are sold in the states , and not in europe as far as I know ....

Alan Priddy knows a thing or two about these units.... and has a whole heap of spares too
TIM is offline   Reply With Quote
Old 24 April 2005, 05:43   #4
Country: UK - Scotland
Town: Inverkip
Make: Redbay 11m Cabin
Length: 10m +
Engine: 2 x Yamaha422Sti 275
Join Date: Feb 2003
Posts: 567
I think the gear ratio and type and pitch of prop is the only difference, pretty sure the trim rams will be the same,
Hard or Soft it's never BIG enough
Andy Gee is offline   Reply With Quote
Old 28 April 2005, 06:31   #5
Country: UK - England
Town: Saltash, Cornwall
Make: Rib less:-(
Length: no boat
Join Date: Sep 2002
Posts: 693
Saw this and thought it might be what you are looking for
Jelly is offline   Reply With Quote

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