Seafoam Vs. Mercury Quickleen

[rl29]

Maybe someone can help me on this one:<br />When I bought my 1987 boat with a 125 Force motor the mechanic at the dealership told me to use Mercury Quicksilver in the gas. One ounce per six gals. I see now it is called Mercury Quickleen. Part #92-802877A1.<br />Now is this product the same as Seafoam?<br />Or should I be using Seafoam Instead?<br />And does this help decarb engine or do I need to still decarb engine threw carbs? <br />And at last heres the stupid ?. <br />Whats the procedure for decarbing through carbs with duel carbs? Do you have to spray it in both throats at the same time or what? Won't it kill the engine?

 

[SeaDawg]

Re: Seafoam Vs. Mercury Quickleen

rl29, I had the same motor in 1987, and never knew about decarbing them. I guess a lot would depend on how you plan on running the motor. Meaning, low speeds and lugging usually equals carbon buildup. Also, too rich of a carb setting will do it too.<br /><br />If I had a 2-stroke motor today, I think I would use a decarb agent.<br /><br />Here's my story. Back in 1987, I bought a new 1987 Trophy with the 125 Force motor. I put over 1,200 running hours on it burning 1 quart of Pennzoil 2-stroke boat lube mixed to 10 - 11 gallons of gas (little less than 50 - 1 mix). <br /><br />I also, raised the engine cowling each evening after fishing, and sprayed the entire powerhead with WD-40. Changed the plugs twice a season, and looked into the engine, and never saw any carbon buildup.<br /><br />I sold it in 1990, and it would still hit the same top speed that it hit new. Like I said earlier, I never knew about decarbing it, but I ran it mostly at 4,000 + rpms.

 

[G DANE]

Re: Seafoam Vs. Mercury Quickleen

Hi Fellas<br /><br />I had an old Evin 25HP motor i have run for 3-4 years. I just disassembled it as it had an airleak at upper crankshaftend. The combustion chambers and exhaust is clean, only slightly covered with a very thin carbonalyer. No reason to decarb. Is it because our fuel ind DK is cleaner than US fuel ? or use of good outboardoil or because a 25 HP always has to work a lot ??

 

[petryshyn]

Re: Seafoam Vs. Mercury Quickleen

Is it possible......<br /><br />Air leak > lean mixture > high combustion temperature > clean combustion chamber?<br /><br />Working it hard will also reduce deposits...The problem is most people don't know if they have a build-up, so decarb is good preventive-maintainence. Its sad to see cylinder walls scored due to carbon, when a little P.M. is all that was needed.....Its funny, cause its people who "baby" the engine are the ones that suffer the most scoring...

 

[Fouled Plug]

Re: Seafoam Vs. Mercury Quickleen

Schematic has the right idea. More slow speeds/trolling = more carbon. My main engine is used for shooting to the fishing spot, and then the kicker goes in for trolling. I add a decarb agent to both tanks for insurance, and have had no problems with either.

 

[rl29]

Re: Seafoam Vs. Mercury Quickleen

Hey Guys by just adding the agent to the gas will that be enough to decarb or will I have to do something else?

 

[Fouled Plug]

Re: Seafoam Vs. Mercury Quickleen

Just add it to the fuel, and run it. You want to be sure to have an extra set of plugs handy, in case they foul. Some treatments have a "shock" dose, then a smaller ratio for everyday running. I've used Seafoam, and Yamaha's Ring Free and like 'em both.