RPM Shooting

[sayed]

"Hi everybody

Can someone h

"Hi everybody

Can someone help please, my engine will hit at Max speed 7RPM is that ok ?
I thing my boat is small compare to my engine 200hp Yamaha, 19 feet boat, prop 19 inches.
If I want to replace the prop what size shall I put?

regards"

 

[mainliner61]

"If you mean 7000rpm,then that

"If you mean 7000rpm,then that is way to much!What 200hp Yami is it? Is it a bass boat?"

 

[mainliner61]

If you are actually turning 70

If you are actually turning 7000rpm with a 19p prop then you need to try a 25p. The Yamaha VMax HPDI has a Rev Limiter at 6200rpm.But it is best to keep it running between 5700 and 6000.The Four Strokes should run around 5800 as well.

 

[justintime]

what motor

sounds like tach

what motor

sounds like tach is wrong setting