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Cold hard start

FSH 210 Sport

FSH 210 Sport

Jetboaters Admiral
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Location
Tranquility Base
Boat Make
Yamaha
Year
2020
Boat Model
FSH Sport
Boat Length
21
danzr1 said:
Yes, but the other side engine is fine.

What I did earlier, is I removed the clean out hatch switch and clean its internals. It seemed a bit dirty and is a bit stuck. I recalled today that I did have an issue with that switch where the hatch wasn't activating the switch fully, and had glued in some epoxy to push it down further when closed. I did realize today, I could have just adjusted the thread on the switch, I also did that. It starts fine now, but I really need to wait a day for 2 to really test it as I started it this morning. I will report back.
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Awesome! Yes please follow up! Glad it seems to be starting better now.
 
D

danzr1

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2006
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Tacolpastor said:
Have you tried cleaning the top end by fogging with seafoam or something similar? I bet your valves are crusted up with carbon. I was having similar issues and did a top end cleaning and now I have trouble free startups (knock on wood).
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I may try that, so using the spray into the intake? I do have some CRC cleaner I had used on my direct injection car.
 
T

Tacolpastor

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Year
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SX
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Yes, spray into the intake. I also adjusted my switches and that also may have played into the easier startups. I ended up replacing one of them, making them higher up and even adjusting the latch to be tighter upon closure and locking.
 
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danzr1

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I was able to start it right up today, I think it was the hatch switch, I'll know for sure after it sits for many days. I'll update the thread after some time.
 
FSH 210 Sport

FSH 210 Sport

Jetboaters Admiral
Messages
6,390
Reaction score
7,552
Points
447
Location
Tranquility Base
Boat Make
Yamaha
Year
2020
Boat Model
FSH Sport
Boat Length
21
danzr1 said:
I was able to start it right up today, I think it was the hatch switch, I'll know for sure after it sits for many days. I'll update the thread after some time.
Click to expand...

Call that a win!
 
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