Costa Rica

[kenneth murillo]

Any body know reasons why the rpm of my HPDI 250 r too high and ones in water don't have any power I will really appreciate your answer

[99yam40]

From what I have read, it may be a possible sensor failure locking timing or fuel pressure problem.
Need to get it hooked up to a computer by someone that knows these Yamaha motors to see what is going on before you toast a piston. Never a good Idea to run a motor that is telling you it is sick

[rodbolt17]

most likely a spun prop hub.
you really need to describe the issue better.
if you wish to do it in Spanish I will have my wife translate it.

[99yam40]

I took it as high idle RPM and no power under load, but Rod is correct in that you need to explain the problem better