1980's black max 150 ..slowed to a crawl !

[sidewinderSST]

running my black max 150 hp today , had it cranked up pretty well but not quite flat out , any way it lost power and nearly died. I though I lunched a piston ! Anyway I nursed it back to the dock with the "choke" button it would barly run, not much up off idle or it would die.

Brought boat home .. Has Spark on all 6 . Has 123 PSI compression on all 6 .

What gives ? I tried pumping the bulb some but did not really get to when it was running.

 

[j_martin]

Re: 1980's black max 150 ..slowed to a crawl !

running my black max 150 hp today , had it cranked up pretty well but not quite flat out , any way it lost power and nearly died. I though I lunched a piston ! Anyway I nursed it back to the dock with the "choke" button it would barly run, not much up off idle or it would die.

Brought boat home .. Has Spark on all 6 . Has 123 PSI compression on all 6 .

What gives ? I tried pumping the bulb some but did not really get to when it was running.

Who peed in your gas tank?

 

[sidewinderSST]

Re: 1980's black max 150 ..slowed to a crawl !

I dont think any one did .. Boat went a mile and a half maybe more B4 loosing power . It did give a few coughs and sputters but not many and I was fast idleing back to the dock. ( a long mile and a half back !! )
I had another thought .. I put Fiberglass Reeds in it several years ago .. could these have gone bad? The fuel supply sure seems like its a long shot , the boat is always inside when not in use , and it never has had more than a gallon or 2 of water in the bilge.