So I'll sum it up and try and keep it brief, I bought this boat and motor used, ran fine for the test drive, ever since then I can't go 5 min without stalling, over and over, sputtering to a stall every time, I'll provide a video. (Major boat noob)
11.5' 2004 Achilles HB 340 Rib
2007 Nissian 18hp 4 stroke
My outboard does not have a rpm gauge, and have a aluminum 9 1/2 prop.
It was dropped off at a boat mechanic and they swear it runs fine and the engine is perfect, however it's tested out of the water and were gonna try it in the water this week. The engine flooded itself one time and couldn't start it and maybe it's user error but all I've done is start it and rev it. My mechanic mentioned that this all might be due to the wrong propeller. Top speed on this 128lb boat with just myself in it (185lb) is 24.4mph which Im also told is low on this boat with this 18hp 4 stroke.
It has a rev limiter on it and I'm also told that the engine may be cutting because the prop is spinning to much and overevving then cutting to a stall. If this is the case then I need to have the right prop on it. The pitch is aggressive and the boat planes well with a steep acceleration.
At this point I don't know what to do bring told the motor is spotless and everything is perfect. However it stalls at wot.... near wot, near idle, and idle (mechanic told me he upped the idle rpm as it was too low) I really wanna enjoy this thing.
To make this fair this is not the only mechanic that has looked at this and everyone has been impressed with this motors condition and how it runs... at first it runs like a dream however not even 40 seconds of increased rpms it gives up as you can see in the video. Changed spark plugs, cleaned the carb professionally, engine cleaner, fuel pump and filter is good, gas is good (93 octane) and gas line is good. What are your guys opinions on this prop, I don't have the boat with me currently so I have this info on the prop right now.
11.5' 2004 Achilles HB 340 Rib
2007 Nissian 18hp 4 stroke
My outboard does not have a rpm gauge, and have a aluminum 9 1/2 prop.
It was dropped off at a boat mechanic and they swear it runs fine and the engine is perfect, however it's tested out of the water and were gonna try it in the water this week. The engine flooded itself one time and couldn't start it and maybe it's user error but all I've done is start it and rev it. My mechanic mentioned that this all might be due to the wrong propeller. Top speed on this 128lb boat with just myself in it (185lb) is 24.4mph which Im also told is low on this boat with this 18hp 4 stroke.
It has a rev limiter on it and I'm also told that the engine may be cutting because the prop is spinning to much and overevving then cutting to a stall. If this is the case then I need to have the right prop on it. The pitch is aggressive and the boat planes well with a steep acceleration.
At this point I don't know what to do bring told the motor is spotless and everything is perfect. However it stalls at wot.... near wot, near idle, and idle (mechanic told me he upped the idle rpm as it was too low) I really wanna enjoy this thing.
To make this fair this is not the only mechanic that has looked at this and everyone has been impressed with this motors condition and how it runs... at first it runs like a dream however not even 40 seconds of increased rpms it gives up as you can see in the video. Changed spark plugs, cleaned the carb professionally, engine cleaner, fuel pump and filter is good, gas is good (93 octane) and gas line is good. What are your guys opinions on this prop, I don't have the boat with me currently so I have this info on the prop right now.
