[Pippin]

Re: 2003 Mercury EFI 4 Stroke 115 HP here

[alystair]

You more than likely need to have the injectors cleaned and have the screen in the vst pump cleaned also. to clean the vst screen you need to pull the intake manifold off and take the cover off of the vst tank the screen is located on the bottom of the high pressure pump. be sure to order a new gasket for the top of the vst housing. 170 sounds to high for the injectors they should cost around 25 a piece. there is a company located locally here that does a very good job and provides a flow readout both before and after cleaning. more

[gazoakley]

Re: 2003 Mercury EFI 4 Stroke 115 HP

[citizen]

Re: 2003 Mercury EFI 4 Stroke 115 HP here

[rainerfox]

Did you get the issue resolved?
I have a 2001 115 4-stroke that stranded me.
It sputtered a couple of times at WOT and, after I stopped to fish (using my electric trolling motor), the Merc wouldn't start. It would idle and then die as soon as I put it into gear.
Luckily someone saw me and I got a tow back.
The next day it started fine and once again at full throttle it started to sputter and miss. Once I slowed down and stopped it wouldn't start again.
Back at shore I switched gas tanks (from built-in to cruise-a-day) and it didn't help.
Any answers?