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  1. W

    hpdi 300 running on 4 cyl.

    was running about 3200rpm. went to adjust trim, tried to kill engine. up or down was like i was pulling the kill switch. got to my fishing hole came to an idle and it tested fine. now it is like the engine is only running on 4 cylinders. can only run about 4200 rpm wot. usually runs 5300 wot. i...
  2. W

    mystery water

    i have an '87 70hp yamaha, i found that my lower piston had gotten water in it. causing the piston to score heavily. i cannot find where the water is comming from at all. the engine was just rebuilt 23hrs previously. all gaskets were seating perfect. no blown head gasket or cracked head. there...
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