Engines shutdown right after starting

[GoodCubanito]

2016 Yamaha 242 Limited S:
When I crank up the engines, both of them start and then stop. Then, I try again and they run without issue. Not sure if this is normal behavior... any suggestions?

Thank you all!

 

[Beachbummer]

Humble suggestion that fixes this on my MR-1: New Spark plugs.

 

[GoodCubanito]

Humble suggestion that fixes this on my MR-1: New Spark plugs.

Beachbummer: I thought about it... just got the boat a few weeks ago... will replace the spark plugs as soon as possible... thank you!

 

[Timm76Le]

I have a 2016 212ss that does the same thing. It started and shuts off 2x on both engines. Do youknow how long it can go before I need to change the spark plugs? Thx

 

[haknslash]

I have a 2016 212ss that does the same thing. It started and shuts off 2x on both engines. Do youknow how long it can go before I need to change the spark plugs? Thx

These boats and engines are finicky about anything less than a perfect/near new spark plug. I would change them annually.

 

[GoodCubanito]

These boats and engines are finicky about anything less than a perfect/near new spark plug. I would change them annually.

Yes, annually or every 100 hours is what is recommended.

 

[Julian]

It is also possible that your clean out hatch kill switch is misaligned, or your safety lanyard is not fully engaged. Check both of those. (a quick test for the hatch is to tape a quarter to the spot where the button rests....if the problem is solved, then adjust the button with the adjustment threads).

 

[GoodCubanito]

It is also possible that your clean out hatch kill switch is misaligned, or your safety lanyard is not fully engaged. Check both of those. (a quick test for the hatch is to tape a quarter to the spot where the button rests....if the problem is solved, then adjust the button with the adjustment threads).

Julian, very appreciated... I will make sure to test the kill switches on the hatch...