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Weird starting issues, SX210

girthquake

Active Member
Messages
24
Reaction score
22
Points
32
Location
Irvine, CA
Boat Make
Yamaha
Year
2006
Boat Model
SX
Boat Length
21
Final update on the issue. Turns out there was a faulty intake valve. This valve was either sticking open or closed, hard to tell. Sometimes it would work and then sometimes not. On that last trip, the valve finally gave out and the tip broke off causing all kinds of damage to the head and #2 piston. I installed a new head, #2 piston, and all new rings. I tore the engine down to the case to clean, inspect, etc. After putting it all back together, the 3 test runs have been flawless. I want to thank everyone for their help and advice during this experience. I have the boat up for sale now since the kids have been spoiled with our friends wakeboard boat.... I guess that next on the list! Stay safe out there!
 

FSH 210 Sport

Jetboaters Admiral
Messages
6,010
Reaction score
7,056
Points
437
Location
Tranquility Base
Boat Make
Yamaha
Year
2020
Boat Model
FSH Sport
Boat Length
21
Final update on the issue. Turns out there was a faulty intake valve. This valve was either sticking open or closed, hard to tell. Sometimes it would work and then sometimes not. On that last trip, the valve finally gave out and the tip broke off causing all kinds of damage to the head and #2 piston. I installed a new head, #2 piston, and all new rings. I tore the engine down to the case to clean, inspect, etc. After putting it all back together, the 3 test runs have been flawless. I want to thank everyone for their help and advice during this experience. I have the boat up for sale now since the kids have been spoiled with our friends wakeboard boat.... I guess that next on the list! Stay safe out there!
Thanks for the update! Sorry the remedy was rather catastrophic! your story just added more knowledge/experience to this site!
 

itsdgm

Jetboaters Admiral
Messages
3,637
Reaction score
3,089
Points
417
Location
Rancho Santa Margarita, California
Boat Make
Yamaha
Year
2007
Boat Model
AR
Boat Length
21
Final update on the issue. Turns out there was a faulty intake valve. This valve was either sticking open or closed, hard to tell. Sometimes it would work and then sometimes not. On that last trip, the valve finally gave out and the tip broke off causing all kinds of damage to the head and #2 piston. I installed a new head, #2 piston, and all new rings. I tore the engine down to the case to clean, inspect, etc. After putting it all back together, the 3 test runs have been flawless. I want to thank everyone for their help and advice during this experience. I have the boat up for sale now since the kids have been spoiled with our friends wakeboard boat.... I guess that next on the list! Stay safe out there!
Glad that you’re back up and running. This would’ve been financially devastating if you weren’t able to do the work yourself. Too bad that it took the season out of play for you though. Good luck with the sale.
 
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