Search results

  1. S

    150 Mercury Blackmax- High Speed Problem

    My 1989 Mercury Blackmax XR4 just learned a new trick. It cranks fine, idles fine and gets up on plane with no problem. Once I get up on full plane and start running full speed, for about 10 seconds, the motor acts like it runs out of fuel and idles down. After the motor slows down, I can get...
  2. S

    1989 Mercury XR-4 Carb Rebuild Help

    I was wondering if anybody could help me out. I would like to rebuild my carbs on my 89 XR-4. For the last few years I have been paying a guy from work to do mechanic work on my boat and recently I KNOW he has been ripping me off big time so Iam going to try to follow the manual and do it...
Top