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    90hp vro only 3000rpm

    My 1989 90hp V-4 vro will run fine for about five min at 5000rpm then it starts running rough and slows to about 3000rpm. If I stop for about 30 minutes it will run at 5000rpm for about five miutes and then it starts acting up again. I have squeezed the primer bulb when the problem occurs and...
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