Evinrude 90 HP Ficht '99 Fuelproblem

dalmeijer

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Joined
May 25, 2010
Messages
3
I need some help with my problem. I have an Evinrude 90HP '99 FICHT with a fuel problem. First the problem was not enough fuel at all RPM, this problem was located in the fueltank, because the hose inside the tank was too short there wasn't enought fuel coming to the engine.
This problem is solved by installing a longer hose inside the tank and mounting the tank in a different position. Also the engine was not running smooth at neutral gear, the dealer replaced a "pressure valve" of the fuel system.
Now I have a new problem:
The tank is lying upside down so I'm sure this is not the problem but at full throttle there is not going enough fuel to the engine. As we go full throttle and somebody is sqeezing in the "ball" in de fuel hose the engine runs at 6500 rpm if not it only does 4000-4500 rpm.
Does anyone know what the problem might be? If have the EvDiagnostic software, still waiting for the connectioncable? Maybe someone can tell where to look at with this software?
I really hope it's not the fuelpump as this is an expensive part.

Thanks in advance

(sorry for my bad english, I'm from Holland ;-)
 

big12fan

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Joined
Jun 10, 2010
Messages
2
Re: Evinrude 90 HP Ficht '99 Fuelproblem

I have a 1995 115hp that I am going through the same scenario with - will let you know as I know. $450 fuel pump seems scary. I am replacing fuel filters and making sure fuel lines are not cracked and primer bulb has no cracks. If there is any loss of prime the fuel pump will eventually loose ground.
 

dalmeijer

Recruit
Joined
May 25, 2010
Messages
3
Re: Evinrude 90 HP Ficht '99 Fuelproblem

Bought a fuel filter also today but unfortunately this is not the problem.

I received my diagnostics cable today, just waiting for a sub-dn connector to connect the cable to my laptop. Is there any thing I can see with the diagnostic software?
Anyone tips for using this software?
 
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