Merc 3.0 Stall at partial throttle ?

jac09g8gt

Cadet
Joined
Mar 31, 2010
Messages
15
I have a 2000 Galstron SX175 with the Mercruiser 3.0 and it is my first boat. I have had it over a year and when I first bought it I took it to a reputable mechanic and had him look over the whole thing. He rebuilt the carb and flushed the fluids and now I do the routine maintance myself. Once it warms up it seems to run fine except it seems to stall at about 1/4 throttle or 1/3 throttle. If you floor it, it runs smooth. It is just that area in the throttle that seems to stall. Could anyone help me out on this? I run 93 octane only because that is what the mechanic told me to run in it to help keep the motor clean.

So far I have replaced spark plugs, spark plug wires, distrib cap, and changed the oil/oil filter. Plus any advice on maintance I may have missed would be appreciated. We have been running the boat at the lake and river almost every weekend with 5 people or so in it and it has run great. Over the past (its been in the family) couple of years it has gone through about one belt a year. I think I have this fixed because the alternator was misaligned I believe. I now carry an extra belt at all times.

Once again thank you for reading this post and any help would be appreciated. Thank you all.
 

jac09g8gt

Cadet
Joined
Mar 31, 2010
Messages
15
Re: Merc 3.0 Stall at partial throttle ?

I have beensearching and I can't find an answer. Does anyone know where I can find the fuel filters to change? Or any other suggestions?
 
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