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  1. W

    35 hp johnson loses power at high rpm.

    Boat is 15 ft fiberglass open fishing boat with 1986 35hp johnson. Motor starts right away and idles fine, If lightly loaded (1 person) it will accelerate smoothly onto plane and run fine. However, with a couple people on board it will get on plane run for maybe 1/4 mile and then lose power. The...
  2. W

    35 hp johnson one cylinder no compression

    OK here's what i did. I removed both plugs tested top cylinder it showed 118psi. bottom cylinder test showed 0 psi. Without removing gage from bottom cylinder I put plug back in top cylinder, bottom cylinder then pressurized to 118 psi. I then removed plug from top cylinder and bottom cylinder...
  3. W

    35 hp johnson one cylinder no compression

    Boat runs good at idle but boggs down at higher rpm. So I did a compression check. I took out both the plugs. Top cylinder showed 118 lbs. Bottom cylinder showed 0 lbs. When I put the top plug back in a test of bottom cylinder then showed 118 lbs. any ideas?
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