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    what exhaust riser gaskets do I use?

    I have a 1980 merc 260 5.7/350 and I took the risers off because of an overheating issue. The starboard side had a non restricted gasket and the port side had a restricted gasket. I am confused on which is the correct application. I have the manifolds with the riser in the rear, not the center...
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    how do i know that my lower shift cable is bad

    I just brought home a 1980 with a merc 260/5.7. After I fired her up I thought all was well. She idled fine....then I tried forward....stall. Fired back up...good idle....reverse...stall. I have be reading these posts and everybody says to change the lower shift cable. But my question is why...
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