2005 Merc 115 EFI 4 Stroke - Help

davidgmiller

Cadet
Joined
Jul 2, 2010
Messages
11
Hi, I have a 2005 115 EFI 4Stroke pushing a 24 foot Star Craft Pontoon. The boat has been running good up until this year, I can only get about 3,800 RPM WOT and seems like it's missing. I've tuned it up with new plugs, fuel filter, fuel line etc. Also a few weeks ago, I had a new impeller installed and all the fluids changed. Today my local mechanic came by and did some testing, found a couple loose fuel lines and fixed. Fuel presure was good, but when I took back to the lake, it ran like crap, under a load it just won't go. About 15 mph is all I'm getting and WOT is 3,800 rpms. Another thing that was done today was tested the coil packs by pulling each boot, engine was really missing when each was removed. I've seen a couple posts about removing and cleaning the injectors, is that an easy task? Any ideas or suggestions would be helpful. Thanks
 
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