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Unread 08-28-2005, 01:32 PM
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willy willy is offline
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Join Date: Jul 2005
Location: new jersey
Posts: 9,406
Default Re: black max 150 trouble

Ok step thanks for advise but I was out yesterday testing motor and all is well. With mine it appeared several things decided to take a dump all at once. First of all the mechanic drained and flushed my tanks 20 gallons for me for $80. There was a little water in it but not much. Appeared the filter caught most of what was there and was getting clogged. He found a pin hole in the fuel line from pump to card and another from oil pump to carb replaced all lines inside cowl. When I first had problem I did not have spark on two cylinders on same side. Also the stator was not putting out whatever it is he measures so it was replaced. The switch box involved was replaced with new from merc and installed. THE PROBLEM WAS THE BOX HAD RIGHT NUMBER BUT THE NUMBER ON THE LITTLE STICKER ON BACK OF SWITCH WAS DIFFRENT AND WOULD NOT RUN RIGHT. >:( >:(. aGAIN REPLACED AND THE CORRECT BOX INSTALLED, BUT GUESS WHAT >:( >:( THAT ONE WASN'T PUTTING OUT RIGHT VOLTAGE BRAND NEW. So another new box obtained and worked fine. I love quality control ::) also the trigger was replaced, not because it was'nt working but apparently mercs in the 90's had aproblem with the wire insulation decaying. Mine had some bare spots hidden and if you rubbed it a little it would roll off the wire :o The mechanic also rebuilt the fuel pump because it might have gotten some water in it and it was original 1992 everything else looked good and other than coils and one switch box i'm all new under there. He and I spent time checking fuel lines and vent lines and pump ball all looked good. He told me if the fuel lines were going bad from the inside there would be fine and small pieces of the decaying material in the filters and I had none.
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Willy
1986 V20 Old School
1992 V20 1992 150 Yamaha
1997 HydraSport 2250 Vector
2009 17' G3 Outfitter "G Spot"
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