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Confused here. I have a 2000 twin Mercruiser 5.7 EFI Horizons. OL397915 and 917 inboards. I was thinking about changing my exhaust before I begin to have problems. They were changed back in 2003 under warranty and nothing since.
My problem is do I have to change the whole system...
I seen a lot of threads regarding people asking if anyone has access to the EFI codes, however, I don't believe I have seen one response.
I have a 2000 Mercruiser 5.7 MPI/Horizon. I take it, it must be coding as it appears to be in the "guard" position as one engine will not rev above 2500 or...
Hi,
I have a 2000 Mercruiser 5.7 Horizon MPI. The dipstick/tubes are a very bad design on these engines. The plastic yellow tab they put on the end broke off. I tried everything to remove my dipstick. Small, long needle nose pliers, small plastic tubing, etc....whatever I tired, it just...
I have a 2000 Mercruiser Horizon 5.7. OL 397915
What are the correct spark plugs for this engine? And would you recommend using "Iridium" spark plugs? I don't have the special tool to gap them if the are not properly gapped for my engine.
I have a 2000 Sear Ray 310 Sundancer with twin Mercruiser 5.7 EFI Horizons.
During the winter I changed the spark plugs, oil, etc.... I am not sure in the process I may have stepped on the throttle cables as my engines are no longer syncronized. In order to syncronized the engines, I have to...
I have a 2000 Mercruiser 5.7 EFI Horizon engines. The engines don't appear to be sycronized. I have to give more RPMs to one engine to get the dash guage to sycronized. I would say about 300 to 400 rpms. My Starboard engine is the one that appears to be out of sync.
I tried to look up how...
This thread is only for the smart ones; that is, if anyone can figure this one out.
I have a 1997 Mercury/Mariner 15 h.p. outboard. 0G522668
I purchased the motor over the winter and was told it ran good. He ran it for about a minute to show me then shut it down.
I went to put it in the...