stevebardocz
Active Member
- Messages
- 4
- Reaction score
- 0
- Points
- 40
- Boat Make
- Yamaha
- Year
- 2013
- Boat Model
- SX
- Boat Length
- 19
I'm new to posting here, but I saw that there were a lot of experienced people here sharing ideas. I had our SX190 out on a Saturday taking a group of my daughters friends tubing. We parked it for cake and ice cream, and when I went to drive it on the lift, it started but then stalled as I tossed it in reverse and gave it some gas. It was close enough to the lift to pull it over, and so I did so, lifted it, and noticed the bilge pump was still going. I opened the engine compartment and it was almost to the top with water. So I let the pump run until it was empty and then cranked it a few times. It sounded like it really wanted to fire up but never turned over. I figured maybe a weak battery or wet electrical. So I brought the battery back (which had hot lead for attempting to start it) and left it to dry out.
A few days later I went out and hooked the battery back up. Everything was bone dry now since it was up on the lift. This time it did start, but then was a noisy struggling to stay running and then it stalled. I started it again and it ran, but it sounded like it was struggling. No check engine light though. If I give it gas while in the lift, it smooths out and sounds normal. This works in forward or reverse. I researched online and figured I should check for water in the engine. So I pulled out the spark plugs and cranked it over. No water came out. No water was visible. Oil looks normal and is still perfectly up to the fill line. Spark plugs had some rust, so I thought maybe one of the spart plugs was fouled out and it was struggling to run smoothly at low RPMs, so I ordered some of those, swapped them out thinking that would be the trick, but same results. I'm kind of at a loss at what the next thing to try. Inspecting the rods and lifters? I'm sure that's not easy, but I'm thinking that's my next step. I'm afraid to run it much in case it's actually at risk of damanging it. I thought about taking it out and opening it up some, but again, I don't want to do more damage.
I figured out where the water was coming in from. One of the helm drain plugs was completely missing. Not sure how this can both come unscrewed and then actually fall out. It has the plastic clip that holds it in, so I'm still perplexed about that. However, I replaced the entire drain assembly, and dipped it back into the water at the lift, and no more leaks.
Here is a video showing the motor running at idle and higher RPMs:
Here is a folder that shows the SN and name plate of the motor, along with the spark plugs I removed, and the oil dip stick showing the oil to the full line with good, clean oil (at least as far as I can tell):
So I'm looking for some suggestions!
A few days later I went out and hooked the battery back up. Everything was bone dry now since it was up on the lift. This time it did start, but then was a noisy struggling to stay running and then it stalled. I started it again and it ran, but it sounded like it was struggling. No check engine light though. If I give it gas while in the lift, it smooths out and sounds normal. This works in forward or reverse. I researched online and figured I should check for water in the engine. So I pulled out the spark plugs and cranked it over. No water came out. No water was visible. Oil looks normal and is still perfectly up to the fill line. Spark plugs had some rust, so I thought maybe one of the spart plugs was fouled out and it was struggling to run smoothly at low RPMs, so I ordered some of those, swapped them out thinking that would be the trick, but same results. I'm kind of at a loss at what the next thing to try. Inspecting the rods and lifters? I'm sure that's not easy, but I'm thinking that's my next step. I'm afraid to run it much in case it's actually at risk of damanging it. I thought about taking it out and opening it up some, but again, I don't want to do more damage.
I figured out where the water was coming in from. One of the helm drain plugs was completely missing. Not sure how this can both come unscrewed and then actually fall out. It has the plastic clip that holds it in, so I'm still perplexed about that. However, I replaced the entire drain assembly, and dipped it back into the water at the lift, and no more leaks.
Here is a video showing the motor running at idle and higher RPMs:
Here is a folder that shows the SN and name plate of the motor, along with the spark plugs I removed, and the oil dip stick showing the oil to the full line with good, clean oil (at least as far as I can tell):
Google Drive: Sign-in
Access Google Drive with a Google account (for personal use) or Google Workspace account (for business use).
drive.google.com
So I'm looking for some suggestions!
