Weird starting issue

[Dayn]

Hello everyone! Had a strange thing happen to me today. Was out on the water cruising to our normal hangout and all was well. Was anchored for about 2 hours when I needed to fire up the engine for about a minute to reposition the boat. Still no issues, another couple hours passes and we decide to pull anchor and cruise. Hit the key boat cranks but will not fire. Ok, so check all the usual stuff lanyard, back hatch safely switch, fuses. Still just cranks. About 30 min into all this a glimpse of it trying to fire. Finally after a few more attempts it fires up and runs fine the rest of the day. Anyone have any ideas? It almost acted as though it was flooded somehow.

2017 AR195

Thanks!

 

[Seadeals]

How old is the fuel in your tank? How full was the tank? When did you last use the boat? Do you run ethanol free? When did you last change spark plugs? Not sure based on what you stated so far.

 

[Dayn]

boat was full of 93 premium, last used 2 weeks ago. Not sure when the plugs were last changed, boat is new to me as of last month and has 114 hours on it. We have had it out about 6 times since we purchased it and it has been perfect all those times. I am planning on changing plugs this week.

 

[Cobra Jet Steering LLC]

Possibly the throttle positioning sensor, if it happens again move the throttle forward and backwards and then try to start it again , because it is cranking it is not the rear hatch switch or the lanyard kill switch , the throttle switch will allow the starter to crank but it kills the ignition.

 

[Croker]

Hey. I think you have the same issue as this guy.

https://jetboaters.net/threads/2017-yamaha-ar190-no-start-just-a-click-need-help.35189/#post-565400

We all have around the same mode year and issue. I haven’t worked out what causes it and I also suspected hydrolocking.

Long shot and kinda spit balling here.
As long as the engine is warm and being switched on and off waterskiing it’ll start up fine. Once it starts to sit and cool water is sucked into the engine causing that continuous cranking but no ignition. If the boat sits for like 6-8 hours water has time to drain and start up normally.

I can’t find anything concrete about the issue.

 

[Dayn]

Cobra jet - I did mess with the throttle, that did not seem to make a difference. It almost acts like it was flooded, which I don’t understand how could happen. I am hoping this was a one off and does not become common, but I will for sure be replacing the plugs so at least I will know when they were last changed.

Croker- interesting read however mine was cranking just not firing.

 

[Cobra Jet Steering LLC]

Does your oil smell like gas and is it higher than it should be? You may have a stuck fuel injector and it is flooding the engine and the oil plus the air filter .

 

[Dayn]

Just checked, and nope oils level is good and no gas smell.