de-carb mercury outboard

[jarvisd]

I have a 1976 mercury 115 which has carbon build up-I am planing to use seafoam with the gas mixture but wondered about spraying deep creep (sea foam) directly into the carburators and if I need to remove the faceplate -and- or filters before doing so-I am very new to boating

 

[Angrywasp]

Re: de-carb mercury outboard

I just did my 88 Merc. I didn't put any in the gas. I pulled the faceplate and sprayed the deep creep into the carbs a little at a time while it was running and warm. Then I flooded it out by spraying it continually into all the carbs. Then I pulled the plugs and sprayed some more into the cylinders and let it sit for about 45 minutes. Started it up and smoke ensued.

 

[jarvisd]

Re: de-carb mercury outboard

how is it running?

 

[Angrywasp]

Re: de-carb mercury outboard

Haven't gotten to put it in the water since I did it but it does idle and start better. I did it a week or so ago on my skeeter and it starts better, idles better, and seems to run better overall (less smoke on start up too).