So I bought this boat and on the sea trial it would not plane with the starboard motor back firing and no power (revved fine in neutral) so the guy had a mechanic look at it and had the fuel pump replaced part number v21608511 the following sea trial it ran great and I wrote the check, 2 weeks later I go down to the boat and put 40 gallons in each tank, we ran about 30 to 45 mins at about 3200 Rpms up river in 1 to 2ft seas when we stopped to pick a friend up a friend idled in to the pick shut engines down briefly, idled back out and took of up river this time about 10 to 15 mins in the engine started to backfire periodically a single backfire every few minutes before too long the engine was loosing power and back firing to the point we couldn't really take it over 2k.....fast forward it's now at its new home 90 miles up river. I changed the filter and pored it into a jar, there was some nasty **** in there.
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That's a link to the photo of the fuel, but anyways, it didn't change anything, I have since ran 20 more gallons through and added about 30 to the tank. With sea foam and no change, I did notice that it will go nicely but once it reaches about 3000 it will stall unless I wiggle the throttle I can get it to almost 4k and no back fires but I have to constantly wiggle the throttle to maintain those Rpms if I do not it will back fire sputter and stall, if I'm modestly chugging along around 2000 rpm it's fine.
I did notice in comparison to (reving) the starboard vs the port while in neutral the port is very responsive off idle and the starboard all though it revs good there is a major delay if you goose it off idle it will stumble then rev fine through the Rpms it's just if you goose it off idle its like it cuts out for a half a second then goes.
My appologies for the lengthy message just want to make sure I relcieve more insight then comments asking for more details
Engines have 205 hours on them and compression is good
That's a link to the photo of the fuel, but anyways, it didn't change anything, I have since ran 20 more gallons through and added about 30 to the tank. With sea foam and no change, I did notice that it will go nicely but once it reaches about 3000 it will stall unless I wiggle the throttle I can get it to almost 4k and no back fires but I have to constantly wiggle the throttle to maintain those Rpms if I do not it will back fire sputter and stall, if I'm modestly chugging along around 2000 rpm it's fine.
I did notice in comparison to (reving) the starboard vs the port while in neutral the port is very responsive off idle and the starboard all though it revs good there is a major delay if you goose it off idle it will stumble then rev fine through the Rpms it's just if you goose it off idle its like it cuts out for a half a second then goes.
My appologies for the lengthy message just want to make sure I relcieve more insight then comments asking for more details
Engines have 205 hours on them and compression is good
