Engine dies at Idle on startup

[CordryMan]

When I start my VP 3.0L it starts fine with 'heavy' throttle but stalls out at idle position even when engine is warm (T-stat at 150-175 F). Any thoughts?

 

[alldodge]

Howdy

The 3.0L comes in a few configurations, carb, TKS and EFI, which is it?

Using a heavy throttle (think this means high rpm) and it dies on idle (also assume regular carb), then I think your carb needs cleaning.

The above is just a guess based on very little info.

You may also have compression issues, fuel issues, and a bunch of other things.

Is this a new to you boat?
Did it always do this, or is this new?
How old is the gas?

Tell us more about what lead to the problem

 

[Scott Danforth]

Volvo Penta came with Holley carburetors. Adjust your choke. If that doesn't work, do a carburetor clean and rebuild, then adjust your choke settings

 

[CordryMan]

The carb is a Holley, no Fuel injection. Last winterized 1.5 yrs ago. Did proper winterization and fuel stabilization at that time. Already drained and added new fuel. This is the 1st time for this problem.

 

[alldodge]

Motor will run if rpm is kept high, and will die when rpm goes lower

If this is the case, then probably need a carb cleaning as Scott mentioned. If you have a fuel filter caster type, dump the contents into something clear so you can verify it there is anything but clean gas