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Fuel starvation. The engine starts normally then RPM
Fuel starvation. The engine starts normally then RPM decreases till it dies. When started and no-load RPMs increased it also dies eventually. Changed tank fittings, fuel line, hose clamps, filters, se… read more
Expert-Repair
Expert-Repair
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1999 Mercruiser 350 mag mpi. Starts great, revs ok, but
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I have a cruisers rogue with two mercruisers 5.0 engines. IT lacks t power one engine goes flat on torque at 4000 RPM … read more
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Mercrusier MAg MPI 350 HOrizon. New block installed. All new
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90 hp, mid 90s, starts and run good to 4000rpm and then will
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My son ran my 7ohp Yamaha out of two stroke oil now it wont
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I have a 2002 merc. optimax 135L DFI manufactured in July2001.
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Clamp-onTech
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Hello, I have a 2002 Volvo Penta 4.3gl. 320 hours on the
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2003 Mercury 115 HP EFI Four-stroke, Saltwater, serial number
2003 Mercury 115 HP EFI Four-stroke, Saltwater, serial number # XXXXX Ran fine until I pulled another boat, now it will not run above 4000 rpm under load (in gear). Seems guardian mode kicked in and i… read more
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John Deere 6404 marine engine is losing 4.5 to 5.0 liters per
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Tan
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I have a marine power 350 (chevy small block, TBI) brand new
I have a marine power 350 (chevy small block, TBI) brand new crate motor. Installed in my jet boat. Starts and runs great till you get to the high RPM's 4000+ and then it stutters and flattens out. Tw… read more
Jeremy R
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I have twin 2005 150HP 4-Stroke outboards. They have 400 hours
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Jeff G.
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Good Morning, I own a 2000 polaris 1200 pro jetski. Has been
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We have a boat with 2 x Volvo Penta D7C-TA engines, 4 years
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Hi i m the owner of a Suzuki 200hp outboard, about engine
Hi i´m the owner of a Suzuki 200hp outboard, about engine 180 hours. so allmost new.. but i´m having some periodic unstable rpm. The boat has had the normal service before the season- change gear oil,… read more
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I have a 150 hp 1995 Johnson outboard. At heavy load (pulling
I have a 150 hp 1995 Johnson outboard. At heavy load (pulling tubers or skiers) it stutters or misses (loses power) and usually picks back up and keeps running. Sometimes it will stall. This will happ… read more
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OK, 5hp 2 cycle 2003 mercury. Each season it works great.
OK, 5hp 2 cycle 2003 mercury. Each season it works great. Did not get it serviced this off season. Just filled the tank and stored indoors. Changed fuel this spring (50:1 with premium marine TCW3) and… read more
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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