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  1. W

    1999 Mercury 115 sparkplug advice needed

    People, people, people..... i have installed new NGK plugs in my 1999 Mercury 115.....went to the lake, the motor idled rough, sputtered taking off but finally smoothed out at WOT. This is unlike the motor performed prior to changeing the plugs. While on the lake I changed back the the identical...
  2. W

    Over Propped Johnson GT150 on a Stratos 270

    I recently bought a 94 Stratos 270 17'9", with an older 1985 Johnson GT150 mounted on it. It seems to "bogg" when I try to get out of the hole. It came with a 14.5 X23 Raker prop. I think it may be over propped and may need a smaller diameter 4 blade, less pitch prop to get up out of the water...
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