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    HELP! Yamaha fuel guage reads correct on one tank and not the other?

    HELP! Yamaha fuel guage reads correct on one tank and not the other? 1999 Grady White Marlin, twin 250's guage seems to be correct on when swicthed to one tank but when switch over to read other tanl guage either reads full or empty and doesnt gradually go down....i use the fuel flow total to...
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    HELP! Yam 250ox66 wont pull over 15 GPH and rpms drop out above 4k, why?

    Anyone have this problem or know a possible solution? My port side 1999 Yam 250ox66 wont pull more than 15-17gph and when it gets over say 4k RPM's eventually will drop down ...tried changing all low pressure & high pressure fuel pumps and that yellow filter & put on racor filters ...none of...
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