blackfx
Well-Known Member
- Messages
- 11
- Reaction score
- 7
- Points
- 52
- Boat Make
- Yamaha
- Year
- 2014
- Boat Model
- SX192
- Boat Length
- 19
Hello, hoping for some help in choosing parts to buy. I have a 2014 SX192 with around 170 hours that I've had since November. Previously it was kept in salt water and had tons of barnacles on all the aluminum parts when I got it. I've had it out 5 times now all in relatively rough water and with 4-6 adults and full tank. I didn't keep track but let's say it runs at 25 MPH (GPS) at 6,500 RPM. I'm guessing that's because of how rough all the surfaces of the drive are causing the water to not flow smoothly. I never got around to cleaning the surfaces yet aside from chipping off
the barnacles. Last weekend I was out and near the end of the day I heard a rattling sound for about 10 seconds while cruising in deep water. Shortly after the boat would only go 10 MPH max at 6,000 RPM. There were no weeds or other obstruction. I thought something got sucked up and scratched the wear ring so water was getting by. I pulled the pump but the impeller and wear ring look OK with clearances of about .014". The second impeller housing has some scraping on one side. Any ideas why the drop in speed all of a sudden? I realize that all the parts should be replaced because they're pitted so bad, the worst being the piece that the clean out plug sits in with pitting up to 1/4" deep but they we're already like that so that can't be the reason for the lack of speed.
After figuring out this immediate issue then I'll look into replacing the grate, ride plate, transom plate, 2 impeller housings and pump. Can someone tell me what the part that the clean out plug sits in is called? I can't find it in the drawings. Is it hard to remove?
Any suggestions on aftermarket parts to buy instead of replacing them with stock parts to improve performance would be appreciated. Would it be a good idea to get the 2020 SVHO 160mm one piece pump since it replaces a few parts for about the same money aside from the extra needed to buy a new shaft and impeller. Could I run the larger pump with a stock engine (only has ribbon delete and Frozen Boost intercooler) or do you need supercharger impeller and/or tune? Since I'm just starting out with the boat I'm not sure what I want but I don't think I'm after top speed. I'm more concerned with low end power like for pulling inflatables or holeshot.
the barnacles. Last weekend I was out and near the end of the day I heard a rattling sound for about 10 seconds while cruising in deep water. Shortly after the boat would only go 10 MPH max at 6,000 RPM. There were no weeds or other obstruction. I thought something got sucked up and scratched the wear ring so water was getting by. I pulled the pump but the impeller and wear ring look OK with clearances of about .014". The second impeller housing has some scraping on one side. Any ideas why the drop in speed all of a sudden? I realize that all the parts should be replaced because they're pitted so bad, the worst being the piece that the clean out plug sits in with pitting up to 1/4" deep but they we're already like that so that can't be the reason for the lack of speed.After figuring out this immediate issue then I'll look into replacing the grate, ride plate, transom plate, 2 impeller housings and pump. Can someone tell me what the part that the clean out plug sits in is called? I can't find it in the drawings. Is it hard to remove?
Any suggestions on aftermarket parts to buy instead of replacing them with stock parts to improve performance would be appreciated. Would it be a good idea to get the 2020 SVHO 160mm one piece pump since it replaces a few parts for about the same money aside from the extra needed to buy a new shaft and impeller. Could I run the larger pump with a stock engine (only has ribbon delete and Frozen Boost intercooler) or do you need supercharger impeller and/or tune? Since I'm just starting out with the boat I'm not sure what I want but I don't think I'm after top speed. I'm more concerned with low end power like for pulling inflatables or holeshot.
