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  1. A

    half speed under load

    i have a 9.8 hp merc thunder bolt s/n 7084063 that runs fine in the tank but when it's put back on the boat and driven under load it only runs at 1/2 or 1/3 speed with the throttle twisted full.<br /><br />i'm not sure what year the motor is. <br /><br />i presently don't have a manual to refer...
  2. A

    9.8 merc half power under load

    i have a 9.8 mercury thunderbolt s/n 7084063, not sure what year it is but would like to know if possible.<br /><br />The problem is it works fine in the test tank but when i put it on the boat and go for a ride, i can't get full throttle out of it.<br /><br />It idles fine but when i twist the...
  3. A

    9.8 merc half power under load

    i have a 9.8 mercury thunderbolt s/n 7084063, not sure what year it is but would like to know if possible.<br /><br />The problem is it works fine in the test tank but when i put it on the boat and go for a ride, i can't get full throttle out of it.<br /><br />It idles fine but when i twist the...
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