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Old 17 November 2020, 11:15   #1
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Country: UK - Scotland
Town: Inverkip
Boat name: Crusader
Make: Redbay 8.4 Exped
Length: 8m +
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2006 Yamaha ME422 STI max revs?

Can somebody confirm the maximum revs of a 2006 Yamaha ME422 STI Engine

this is the basic 245hp engine.

I thought it was one number but somebody else quoted another and now I am confused.
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Old 17 November 2020, 21:58   #2
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Country: UK - Scotland
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Make: S/R5.4/regal3760
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Engine: Suzukidf70 2x6lp 315
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Originally Posted by craig_c View Post
Can somebody confirm the maximum revs of a 2006 Yamaha ME422 STI Engine

this is the basic 245hp engine.

I thought it was one number but somebody else quoted another and now I am confused.
3800rpm prop for slightly more but dont use it.
Max continuous is 3600rpm
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Old 18 November 2020, 10:14   #3
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Country: UK - Scotland
Town: Inverkip
Boat name: Crusader
Make: Redbay 8.4 Exped
Length: 8m +
Engine: yamaha sterndrive
Join Date: Nov 2004
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RIBase
Fudgemuffins!

14 years I have been over propped

I max out at 3450 if I am lucky...

I have always thought it was 3400. I must have picked up a wrong figure or a different engine.

thanks Ken
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Old 18 November 2020, 17:07   #4
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Country: UK - Scotland
Town: north ayrshire
Boat name: charlie girl
Make: S/R5.4/regal3760
Length: 10m +
Engine: Suzukidf70 2x6lp 315
Join Date: Jul 2009
Posts: 4,004
Quote:
Originally Posted by craig_c View Post
Fudgemuffins!

14 years I have been over propped

I max out at 3450 if I am lucky...

I have always thought it was 3400. I must have picked up a wrong figure or a different engine.

thanks Ken
Check it with an optical tach the standard ones can fib
Ive got one you can borrow if you dont have one
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