MY 1986 150XR2 HAS RECENTLY STARTED OVERHEATING-I REPLACED IMPELLER & KIT-I NOTICED WHEN PUTTING LOWER UNIT BACK TOGETHER, THE TUBE ON TOP OF THE IMPELLER HOUSING IS LARGER THAN THE TUBE IT CONNECTS TO INSIDE THE UPPER UNIT-SHOULD THERE BE A COUPLING OF SOME SORT BECAUSE IT IS NOT A TIGHT FIT AT...
