Decarbonizer

[Dave in Mpls]

I'm gonna try a can of decarbonizer, such as Quicksilver Power Tune or OMC Motor Tuner. My question is, is this something that should be done while on the water or can I realize the same outcome doing it in the driveway?

Any preference to the two forementioned products?

Regards

[Dodge1]

Try Sea Foam instead. Just add it to your first tank of gas of the spring, as per the directions on the can.

Dodge

[Dave in Mpls]

I run 1 can of Sea Foam with every 20 gallons of fuel (40 gallon tank), as I have been doing for the last year or so. I want to do this for "experimental" reasons!

Regards

[Hogger]

Dave you pretty much have to do it on the water. Best results occur when running at operating temps, and you can't achieve the RPM range needed to blow out the junk out in the driveway.

[Dave in Mpls]

Thanks, Hogger

That's kind of what I was thinking. I'll just have to remember to bring the can and an extra set of plugs with me!

Regards

[PJM]

Dave
One way that I have found to decarbon a motor is to use a product like Motor tuner by OMC or what ever brand of motor you have they make a product. Start the motor run it then spray it in the carbs until it kills and let it set so the product can loosen up the carbon then run the motor. Most products want you to run the motor after that for like half throttle for a while then you can open it up. Another way to decarbon your motor is to use Yamaha Ring-Free. What they want you to do is add 2 ounces per gallon for 64 gallons on a V4 and V6 motors for Shock Treatment and then 1 ounce for 15 gallons to prevent carbon build up after that. I know that Yamaha recommends Ring-Free to prevent the OX sensor from gumming up. The product is made by Chervon and is suppose to clean your fuel system too. I have used it for several years and my motors run fine and I buy it by the gallon.

[craigM]

Dave , I use either Ring Free or the Merc regularly in my Merc EFI ,They are similar products because Chevron originally made it for both the ingredient that does the work is something Cheveron designed called techron , it does an incredible job of cleaning you will be amazed at the amount of crap that comes out the first time . You EFI has a cowl that makes it impossible to spray the cleaner in so what I use is a 4 gallon plastic tank from my 9.9 2 cycle I mix the shock amount (from the bottle 2 oz to 64 gallons does not seem right )disconeect the main tank, plug in the little one and run it dry . I do it on the trailer with the muffs on ,(I would rather have that crap in my driveway than in the Lake) you only need to run it at 1000 to 1500 rpms . when it is done change the plugs then hook up you regular main line ,put in a maintennce amount (I use sea foam regularly but if you troll a lot and you can never be sure of the quality of the premium you get, sea foam is not enough.)Merc told me to do it twice a season but that depends on alot of things so when she starts running smoky at low speeds or Idle I do it again and that is about twice a season . if there was a way to pre spray on a Merc efi like the previous post suggested that would be best but I have not found a way if anyone knows of one I would appreciate someone sharing it

[chrism]

Dave
I would guess if you have been running Seafoam regularily you may notice little difference - but if you choose to do this, you need to keep the RPMs up to get the can into the engine. You can also squirt seafoam direct into the carbs for the same effect.
How do your plugs look after a ride?

[Box]

If I am not mistaken, the Merc Quicksilver Premium Plus oil has the additive already in it. From what I have been told, by a merc mechanic and OMC mechanic on other board, is that if you run the PP oil you should not have to decarbon your motor (as much, if at all), as it does it a little bit every time you run the motor.

I'm not a mechanic :) But our EFI ('97, 150hp) runs good, smokes only a little, and we troll it a lot. Starts perfect and idles at ~600-650 rpm. Only had to change plugs once so far, and that was more "for the heck of it" than needing it. We do use it many hours, as it is shared between three people. Usually on the water 3-4 times per week from April thru duck season.

Good luck!
Box in MN

[PJM]

CraigM When I wrote my post I took the information right off the Ring-Free bottle. They want you to mix 128 oz of Ring-Free to 64 gallons of gas for shock treatment. So that would be 2 oz per gallon. The only problem is that stuff gets expensive but it's cheaper then buying or repairing your motor.

[MinnBobber]

Another
>way to decarbon your motor
>is to use Yamaha Ring-Free.
>I buy it by the
>gallon.

PJM- Do Yam dealers sell it by the gal? How much per gal ($)? I currently use OMC Carbon Guard in each tank. It costs about $8 or $9 for a 12 oz bottle. It goes a long way, you mix 1 oz with 10 gal of gas.
Thanks for any info on the Yam product.

[Larry]

There's no need to "shock treat" from the entire main tank. Just mix up enough for a 3 gal portable tank and hook it up instead of your main tank.

[Larry]

On my motor, taking the cover off to get at the carbs was a huge pain. I solved the problem by drilling a very small hole in the plastic cover in-line with each carb. Shoot the cleaner into the motor using the plastic wand that comes with each can. When completed, stick a small piece of tape over each hole until you need to do it again.

[Sparky]

Your original post had 2 oz. per 64 gal.. That may have led to the confusion. Thanks for the information.

Sparky