1997 J175EXEUE Dies at 1500-2000 Rpm

carboman

Seaman Apprentice
Joined
Jul 1, 2008
Messages
43
Hi,

Idles great and runs great under load up to 1500 rpm. when brining it between 1500 to 2000 rpm, it wants to die and usually does.

On the muffs, all seems well.

I did recently bypass the vro. I premixed non ethanol at 50:1. seems to run better than when injecting oil using the vro.

Im thinking I am leaking air in some where. the vro oil lines are plugged well and the vro 4 pin connector is disconnected and sealed off.

Its the original vro, and a couple of the screws on the oil side do not tighten down as they should.

Any advice is appreciated!

Thanks!
 

dingbat

Supreme Mariner
Joined
Nov 20, 2001
Messages
16,383
The 25 yro fuel pump is your issue.

The oil side of the pump is pretty infallible. It’s the fuel side that fails.
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,578
Do some simple trouble shooting.------Compression test.-----Then a spark test.-----Check shift switch on the motor linkages.
 
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