i have a 2003 seadoo gtx 4 tec and the high temp alarm comes on at higher speeds but does not at lower speeds. so i cleaned the j pipe holes and made sure of no blockages in those three holes. i also drilled those hole to 1/8 (one size bigger than factory). when i put it back in the water the alarm came on when i was getting a little over 15 mph. what can i do or check to fix this?