Why is my Yamaha 200 HPDI having problems?

Why is my Yamaha 200 HPDI having problems?

Her local marina mechanic has changed the thermostats, replaced the gaskets to the low pressure pumps and adjusted the cables. Each time he fixes something, the boat initially runs well but then develops problems.

Why does my Yamaha 2 stroke engine not work?

If you have low voltage as you stated (11.8) , your alternator may not be charging… My 90 yamaha 2 stroke had fuses under the motor cover on one side of the engine block… not sure on a 200 yamaha… Perhaps you should change out your fuel filter (s)and add some Startron to your fuel tank as well…

Can a Yamaha 200hp engine go past 3000 rpm?

I can not get her past 3000 RPMs! It sounds fine, there’s no unusual vibration, there’s no smoke, and no oily sheen on the water. Not wanted to risk further damage to the engine I abandoned my two day trip before even wetting a line. Right now I’m heading in with the 8 horse kicker at 3.5-4 knots.

What’s the RPM limit on a Yamaha 4 stroke?

Hooking up a deck tank will help to troubleshoot vacuum leaks up to the motor. It’s easy, cheap and VERY informative. Odds are it went into safe mode limiting the rpm to 3,000. Pug it in and pull the DTC code. Click to expand… Unless his alarms are also broken, there is an audible alarm when a Yamaha four stroke is in “Safe” mode.

Her local marina mechanic has changed the thermostats, replaced the gaskets to the low pressure pumps and adjusted the cables. Each time he fixes something, the boat initially runs well but then develops problems.

If you have low voltage as you stated (11.8) , your alternator may not be charging… My 90 yamaha 2 stroke had fuses under the motor cover on one side of the engine block… not sure on a 200 yamaha… Perhaps you should change out your fuel filter (s)and add some Startron to your fuel tank as well…

I can not get her past 3000 RPMs! It sounds fine, there’s no unusual vibration, there’s no smoke, and no oily sheen on the water. Not wanted to risk further damage to the engine I abandoned my two day trip before even wetting a line. Right now I’m heading in with the 8 horse kicker at 3.5-4 knots.

Do you have Yamaha outboard engine problems and answers?

It helps if you start the headline with your Yamaha outboard engine make/model number or boat make/model number. Save the problem description to the text, more detail means better answers. Do You Have Yamaha Outboard Engine Problems?