Thoughts? 2014 30hp Mercury 4 stroke Starting Problem I have a 2014 30hp Mercury 4 stroke that has been setting for approx 1 year, the gas was not drained. Today noticed that with engine going 3/4 or full throttle, it loses power -- it recovered when I back off on the throttle. 2.2 hp 3 hp 3.3 hp 3.5 hp 3.6 hp 3.9 hp 4 hp 4.5 hp 5 hp 6 hp 7.5 hp 8 hp 9.8 hp 9.9 hp 10 hp 15 hp 20 hp 25 hp 30 hp 40 hp 45 hp 50 hp 55 hp 60 hp 65 hp 75 hp 80 hp 90 hp 100 hp 105 hp 115 hp 125 hp 135 hp 140 hp 150 hp 175 hp 200 hp 225 hp 250 hp 275 hp 300 hp The only way to get it started is take gas l I have a Mercury 8hp 4 stroke that is about 6 yrs old that doesn't like to keep running.

Re: Mercury 4 stroke fuel problems #10 Post by badmoonrising » Sat Sep 15, 2012 3:25 pm Just Laxin wrote: Sorry but I'm sure I will be flamed on but here is what I have done in the past with any problems I have had whether it be the boat or the engine,,,,,,I by-pass the dealer and go directly to the manufacture of the product and keep asking for their supervisor till I get the problem taken care of. Have a 2009 Mercury 40 hp 4 stroke on a tracker boat. Has run flawlessly for years. on the advise of our local mechanic we changed the oil at 20 hours and am glad we did. My problem is that there are bronze in/outlet ports on either side of the top carburetor housing that look as though they should have pipes attached to them. Mercury's pre-treatment priming and painting process is engineered specifically for saltwater use, ensuring long-term protection of aluminum castings, and is a vital part of the 20hp EFI FourStroke’s exceptional corrosion resistance. Thanks to member PontoonboatFun for his post date 4 Aug 2012 Engine was running real rough and spewing fuel from the air intake and after doing all the usual checks including … I just bought a new 22sslx in April with a Mercury 4 stroke 115 hp engine.

I'm looking for a manual for a 4 HP 2-stroke Mercury outboard from 1981. I recently bought a Mercury 4 hp 4 stroke Sailpower engine which didn’t run because the carburetor was dirty. All gas has been removed, fuel tank, hoses/bulb and …

It ran rough at both low and high idle and would not stay running. Troubleshoot the ignition by using a spark detector.

emckelvy.

Post Cancel. Yesterday it first ran 15 minutes no problem. I have a 20 hp 4 stroke Mercury 2010 outboard that had gas in it overwinter. I am hoping for something simple like dirty fuel filter or perhaps the gray rubber fuel line with black bulb for priming.. It's Belgian made, two cylinder, serial # 9321742, although Mercury advised that I'd need to put a zero before the serial number (so, 09321742). HP / kW: 20 / 14.7: Engine type: Inline 2: Displacement (CID/CC) 20.3 / 333: Full throttle RPM: 5700 - 6200: Fuel induction system : Single Overhead Cam: Alternator amp / Watt: 12/145 electric: Recommended fuel: 87% octane / up to 10% ethanol: Recommended oil: 25W-40 Synthetic Blend Mercury FC-W 10W-30 4-Stroke Marine Oil: Engine protection operator warning system: SmartCraft …

Although problems could come from other sources, it is unlikely.

Yesterday it first ran 15 minutes no problem.

I have a Mercury 8hp 4 stroke that is about 6 yrs old that doesn't like to keep running.

This is not a question, more of a statement of my own experience with my Merc 115 efi 4-stroke. when we pulled the drain plug for the engine oil about 2 cups of water gushed out.

I cleaned the tank out, replaced fuel line from tank to motor, replaced gas, replaced fuel filter and took off e carb and cleaned it out. They do not need to be made specifically to detect the spark in a 25 HP Mercury boat motor. We love our boat and for the first 20 hours no problem.