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    98 50hp 2 stroke went to half power

    Was cruising 4800 rpms on plane (throttle all the way down), smooth water no wake, all the sudden engine slowed down to 2400 rpms (throttle all the way down still). Thats as high as it will go. Idles fine revs fines and purs like a kitten, just no top end at all. Any suggestions of what...
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    Yamaha hpdi help

    My 2004 hpdi 150 runs great at idle-3/4 throttle but after 3/4 throttle it revs and bogs revs and bogs check the video. Any ideas whats wrong? All filters have been changed https://mail.google.com/mail/u/1/s/?view=att&th=145cc5dc73ff626c&attid=0.1&disp=attd&safe=1&zw...
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    Yamaha 150 hpdi bogs down under load

    2004 150 hpdi will rev and do everything right on land but in water only idles and if gas is given it bogs down. Have new fuel lines and fuel filter. Motor ran perfect last weekend went and took it out yesterday and wont rev thanks.
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    2004 Yamaha 150 hpdi Alarm and tach issue

    Re: 2004 Yamaha 150 hpdi Alarm and tach issue what the back of tach looks like
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    2004 Yamaha 150 hpdi Alarm and tach issue

    Had my 150 running with muffs on and the alarm started to buzz after 2 minutes running. Noticed low amount of water coming out so I cleaned the port and plenty of water comes out now. Alarm is still buzzing though. Both oil tanks are full. Any thoughts? Maybe this has something to do with it...
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    2004 yamaha hpdi 150 electric/starter issue

    Just bought the motor, i know everything worked on it. Wired it up on my boat and this is what happens. Turn key to on position fuel and oil pumps run, tilt and trim on motor works, but when you turn key to engage starter nothing happens. No corrosion or bad fuses that i can find. Problem...
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