my yamaha will crank but wont turnover

[cobiaowner]

2000 yamaha 115 4-stroke fuel injection won't start but it does crank. The boat has not been used for 4 years. Emptied old gas but still won't turnover.

 

[marcortez]

Re: my yamaha will crank but wont turnover

Crank and turnover are synonymous.
If it cranks, it's turning over, and visa verse.

I think you mean....the motor turns over (or cranks) but won't start.

First thing to do is check the emergency stop clip and make sure it's inserted into the fitting.

 

[99yam40]

Re: my yamaha will crank but wont turnover

Check compression and spark. I have seen cylinders rust up if they were not prepped good for long storage
If they are good then work on the fuel system. It is probably the pumps, lines, filters, and injectors plugged/gummed up

 

[cobiaowner]

Re: my yamaha will crank but wont turnover

Got sparks, got compression, got fuel at the fuel pressure, check valve on top of injecture manifold, seems like low fuel pressure or injectors. Please help

 

[99yam40]

Re: my yamaha will crank but wont turnover

guessing won't do the job. measure the pressures and see what you have.

A manual and the proper tools and equipment for trouble shooting will save time and money. The manual will give steps and equipment needed along with the specs for your motor.