Re: [Amel Yacht Owners] Mercury Outboard 15hp carburetor problem
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Hi Bill and Judy, If you are still in Montenegro and need anything else for your outboard you could try Alan Smith in Tivat, an English mechanic, tel. 00382 69 291239. He revived our 2hp 2stroke Yamaha after it had been on our dinghy which flipped in 50 plus knots as we were entering the narrows in Montenegro. Sod's law, as we never normally either tow the dink or , when doing so, keep the outboard on it......
Ian and Judy, Pen Azen, SM302, Corfu
Date: Mon, 30 Jun 2014 05:19:10 +0000
Subject: [Amel Yacht Owners] Mercury Outboard 15hp carburetor problem
Thanks for your email. It was difficult because of a series of connected and disconnected problems. The following were the issues causing and/or contributing to the loss of power:
Number 2 above was the tough one to find and fix. The tiny bits of rubber got lodged in several places:
In all, it took five or six carburetor removals and overhauls to find all of the problems. Finding 7mm fuel hose in Montenegro was a challenge. A taxi and a search of one small town, then another larger town produced 8mm fuel hose for 2 euro, plus 45 euro for the taxi. Fortunately I had saved the fuel line pump bulb from 5 years ago when I changed out the entire fuel tank hose, so I simply am using the old one because finding a new one here is impossible.
The fuel filter did not help when the main contributor to the debris was after the fuel filter. When I get a chance, I will add a disposable in-line filter immediately before the carburetor.
The entire 1 week process was very frustrating and had me considering replacing this 11 year old motor. In the mean time, I did order the reed valve assembly, another carburetor kit, and a few other things which are waiting for me in Houston. I had planned to have them shipped to me, but will wait for a while.
I could not have repaired and cleaned the carburetor if I did not have a compressed air line that I connected to my dive tank. This line is a new addition for me. I bought a 50' lightweight hose from a dive shop that will screw into one of the 3 places on my "first-stage" regulator. At the other end of the hose I can connect either the "second stage," or octopus that I removed to connect this new line, or a air gun. In this case I connected the air gun. I also bought it for quick under-the-boat diving where I can leave the tank on-deck.
I had 4 or 5 years of 2 cycle engine experience when I was a teenager. I raced a go-cart which topped-in at 80mph, powered by two chain saw engines, lots of modifications, and a mixture of gas/nitro. For every hour of racing there was at least 12 hours of repairs/work. In that environment, I would get less than 1 year on the reed valves...but, of course, when they were working the engine was at 12,000 - 15,000 rpm.
I hope that this helps someone with similar issues.
On Mon, Jun 30, 2014 at 12:22 AM, gmshea@... [amelyachtowners] <amelyachtowners@...> wrote: