Posted by: basspro - Ex Member Posted on: 10/21/07 at 16:40:59
Y2,
If you looked at my post awhile back regarding the HPDI problems your problem is probably a bad oil pump. Yamaha has a recall on certain oil pumps. Call Nixons and he will let you know if the 150's are on the list. I know for a fact the 250 + 300's are on the list.
I had this problem at Roosevelt with my 250 HPDI.
Good Luck,
Russ
Posted by: Y2SAYS Posted on: 10/21/07 at 04:00:10
I fished the open tournament today and of course of all the days to have a problem it had to be this day. I ran the boat hard from Coulon to I90. Then there was a warning sound coming, but no light was on. It went away until about an hour later the boat won't past 2000 rpm and bogged down when I was trying to get on plane. I took the cover off and saw that there was a bit of oil residue around the plugs on the port side of the motor, especially the top one. I just got a chance to pull the plugs and sure enough it was fouled, with oil/gas over it. The two lower ones aren't as bad and the starbird side is fine. Are the plugs just fouled or is it something more serious? It's a Yamaha 150 HPDI.
Oh and Larry...I'm not going to get a Procraft. I already know what you are thinking.