1991 200hp Yamaha wont get on plane

[stubbylong]

Can't get boat on plane unless someone goes to the nose of the boat. Using a 4 blade SS prop. Carburetors are good....starts and idles fine. Runs good once on plane. Just has trouble getting out of the hole....any IDEAS?????

 

[Barnacle_Bill]

Re: 1991 200hp Yamaha wont get on plane

You may have the wrong prop on it. We need to know how many RPMs you are turning at WOT. Also check to be sure you have spark at all cylinders.

 

[stubbylong]

Re: 1991 200hp Yamaha wont get on plane

Thanks for the response. I will check the spark, but if that were the case wouldn't it idle rough too? Another thing to note is this happens about 80% of the time. The other 20% it gets up and out no problem at all. I will try to check the RPM as well.