Prime the fuel system correctly after long idle periods
Dry starts after storage starve the fuel pump and can air-lock the system.
Why this matters
Dry starts after storage starve the fuel pump and can air-lock the system.
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.
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.
More in Fuel System
Fuel System
Need a pro at your dock?