Does anyone de-carb?

[1975Grady]

What are the schools of thought on using a de-carb spray product on a outboard. My engine is a 1990 mariner 150, should I try it?

 

[Steve135]

Re: Does anyone de-carb?

1975Grady <br />Use the search on this site to see 100's of post on this.<br />steve

 

[Bear]

Re: Does anyone de-carb?

http://www.boatsetup.com/decarb_carb.html <br />

 

[Jack Shellac]

Re: Does anyone de-carb?

After you've done your search, I think you'll find that most of us are firm believers in regular de-carbing of our motors. I certainly am.

 

[steelespike]

Re: Does anyone de-carb?

I want to first say Im not saying Im right<br />it is just my expierence.<br /> Ive been boating 52 years, everything from just transportation to fishing and skiing.Almost no trolling except with very small motors.<br /> My present motors are 2 88 50 hp Erudes,1<br /> 65 50hp Merc. Had 67 40hp Erude 21 years.<br /> 12hp 48? Elto,14 hp 51? Erude.<br /> 18 hp 61 Erude.7 years.etc. etc.All purchased<br />new or nearly new.<br /> Never Decarbed any of them Maybe I was lucky<br /> or stupid I dont know.

 

[jrc27]

Re: Does anyone de-carb?

i just recently decarbed a 89 johnson 150 gt. prior to de-carb i was getting surging and low mph. decarbed-changed plugs and added a fuel tuner. i was hitting 42mph before decarb now i am running 58-60mph(no other adjustments). so i am a believer in de-carbing

 

[Dhadley]

Re: Does anyone de-carb?

We decard motors all the time and it certianlly helps the majority. Most are set up at around 5500 rpm. I never have decarb'd any of mine. But the crossflows are set up at 6000 rpm and the loopers are set up at 7000+ rpm. They dont coke up. And they all have several hundred hours or more on them. <br /><br />Something to ponder.......

 

[carmangary1]

Re: Does anyone de-carb?

I decarbed this spring and went from 5000RPM WOT to 5500RPM WOT.

 

[rwise]

Re: Does anyone de-carb?

when I decarbed mine the compresion went up 15 psi on all cyl/s<br />Richard