2000 Yamaha HPDI<br />Problem: <br />Riding along at 4500 RPMS Hit a large wave and come down hard. The RPMS will gradually start falling if you give it more gas it will choke. Shut the boat down and crank it again it may work fine for 30 miles or maybe only 2. My mechanic has not been able to watch this happens since it seems to be intermident. I am willing to try any thing. For the most part this will not happen in calm water. <br /><br />Parts replaced so far:<br />Computer <br />powerhead <br />injectors<br />heads<br />ignition<br /><br />When put on the comptuer all the diags check fine. All senosors check fine on the comptuer and checked manulely.<br /><br />This motor is still under warranty but does me no good if I cannot get it fixed. <br /><br />I am not the mecanic but he and I work hand and hand. I do all my own work on all of my older stuff.
