2022 Yamaha AR 250 Engine Stalling during first engine start of the day

[68junglejim]

Hello All,
After waiting we’ll over a year my Ar 250 finally arrived and I have been really enjoying the jet boaters site, you all rock.
First day on the lake the engine would turn over just fine, but once they began to run they would stall out after 1-2 seconds. After repeating this process about 4 times they ran great for the rest of the day. It had been a week since they had last been ran. Any tips or hints to get the engines to start on the first try? Do I need to add any throttle?


Boat ran fine the rest of the day, and started immediately every time after the initial start. tank was 3/4 full of new gas. Boat was floating horizontally when I attempted to start it.

thanks any starting advice is much appreciated!

 

[Cobra Jet Steering LLC]

Possibly air in the fuel lines, try turning on the ignition and leaving the key on for a few seconds before starting the engines.

 

[Weeb]

They run a little lean from the factory to begin with. Colder weather takes a few more turnovers for my initial start too.

 

[David Martin]

I always thought this was not normal for a modern fuel injected engine but it appears normal for the Yamaha 1.8 SVHO engine Also Cobra Jets advice is good as the first 3 seconds turning the key to the on position the fuel pump primes(pressures rises) the fuel rails and the injectors.....then shuts down waiting for the turn over to start. Waiting a week to start...... the rails might bleed off some pressure and might stumble during as quick key turn to start.