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Dominick
Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
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I have a 115hp 4 stroke (4/08) I had it in storage 8 months.

Customer Question

I have a 115hp 4 stroke (4/08) I had it in storage 8 months. I took it out and battery was completely dead. Bought new battery. Fired right up. Took off and enging running rough and cutting out. Figured bad gas. Drained all gas I could get out. I put 25 gallons new gas and a pint of sea foam. Still not running right. Changed fuel/water filter, fuel filter element, changed plugs and built a tool to spray carb cleaner through fuel injectors until they sprayed good.. Starts right up...still spits and sputters when I throttle up. Whats next?
Submitted: 9 months ago.
Category: Boat
Expert:  Charles replied 9 months ago.

Hello, my name is***** will assist you.

I need to know what brand of engine you have so that I may help you the best.

Customer: replied 9 months ago.
I'm sorry yamaha.
Expert:  Charles replied 9 months ago.

Thanks, ***** ***** need the full model number off the left side clamp bracket please.

Customer: replied 9 months ago.
68v f115tlr
L(###) ###-####G
Expert:  Charles replied 9 months ago.

Got it thanks,

The first thing that you will need to do is to look at the fuel pressure going to the injectors. There is a test port on the top of the fuel rail. You should be getting 36-40 PSI while running. You should be able to rent a gauge from a local chain auto parts store.

Customer: replied 9 months ago.
I am getting that pressure.
Expert:  Charles replied 9 months ago.

So you tested it?

Do you have a multimeter to do some testing?

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