Prime the fuel system correctly after long idle periods

Dry starts after storage starve the fuel pump and can air-lock the system.

Book professional help More Fuel System tips

Why this matters

Dry starts after storage starve the fuel pump and can air-lock the system.

No regrets: Never crank endlessly on a no-start — fix fuel delivery first.

When DIY is not enough

If the engine won't start after commissioning steps, schedule spring commissioning or diagnostic service instead of forcing repeated cranks — you can flood cylinders or damage starters.

DIY steps

Use the primer bulb until firm (not hard) if your rig has one.
Key on briefly to allow electric fuel pumps to prime where applicable.
Crank in short bursts if the engine hasn't run in months.
Verify the kill switch, shifter in neutral, and battery voltage above 12.4V.

Related FTM services

Spring Commissioning
Mechanical Repair

Professional mobile service

Rather have a pro handle it?

Full Throttle Marine comes to your dock in Tampa Bay and on the First Coast. Flat-rate quoted before we arrive. Yamaha and Mercury outboard specialists — no trailers, no waiting rooms.

Book a service call Call 941-479-0589

Common questions

Prime the fuel system correctly after long idle periods

Dry starts after storage starve the fuel pump and can air-lock the system. Never crank endlessly on a no-start — fix fuel delivery first.

When should I call a professional instead?

If the engine won't start after commissioning steps, schedule spring commissioning or diagnostic service instead of forcing repeated cranks — you can flood cylinders or damage starters.