any special precautions for de-carbing an efi?

[Bigjohn1]

I am ready to perform the first de-carb of my 2004 115efi which now has 180 hours on it. The engine sees 95% of its use trolling at no more than 2,500 rpm's. The engine is still under warranty and the manual states that Power Tune should be used for de-carb. I have used this product for years on 2-strokes with great results but its easier with them as you just shoot it right down the carbs. With all this efi stuff on my engine, do I simply spray the product into the air intake screen on the air box or what? EFI's can be trickly animals and I don't want to damage anything. Neither the manual nor the label on the product say how to properly apply this spray to an efi engine. Any tips?

 

[Kiekhaeferscurse]

Re: any special precautions for de-carbing an efi?

Try using Kwik Kleen instead of Power Tune, Works just as well (IMHO)<br />Cheers

 

[Bigjohn1]

Re: any special precautions for de-carbing an efi?

Thanks, I have experience with both products, POWER TUNE and KWIK KLEEN. I agree the latter is a good product and "cuts down" on carbon formation "in between" regular de-carb treatments but it is not a replacement, only an enhancement. The factory clearly states to use POWER TUNE every 100 hours and I do a great deal of low-speed trolling so carbon will find its way inside. You can't go wrong following factory guidance, especially if there is a warranty isue down the road. Perhaps a call to Merc customer service is in order.

 

[Perfidiajoe]

Re: any special precautions for de-carbing an efi?

I have a 225 EFi, I use power tune every year, I spray it into the air intake as I would a carbed engine. I also use the Quickleen, with every tank of gas, 11 seasons no problem. Good Luck, Joe

 

[Bigjohn1]

Re: any special precautions for de-carbing an efi?

Joe, thanks alot, that is what I expected.