Cold start takes 4ever

[Merc4ever]

I have a '89 4.3 Mercruiser and it takes a long time to start when cold. (A lot of cranking) I replaced the carb because of a bad choke, but it still does the same thing. It runs and starts fine when warm. It seems like it has a hard time sucking the gas from the tank I replaced everything including fuel lines filters and tank was removed and cleaned. I removed the check valve at the tank because it was sticking. All new electrics including battery.

Would a primer bulb on my fuel line help?

Or how about a low pressure electric fuel pump made for carbs?

 

[Bondo]

Re: Cold start takes 4ever

Or how about a low pressure electric fuel pump made for carbs?

Ayuh,... Or Better Yet,....
How about figurin' out Why the original mechanical Fuel Pump don't seem to be workin' Right,..??

What Carb are We talkin' 'bout,..??

Btw,... Primer bulbs are a Band-aid that'll come back,+ Bite you in the Azz when you don't want it too...
Been there,.. Done that...

 

[Bt Doctur]

Re: Cold start takes 4ever

On a cold start you are pumping the throttle a few times, right?

 

[bruceb58]

Re: Cold start takes 4ever

Make sure when you pump the handle that you are actually getting gas quirts into the carb throat.

 

[Merc4ever]

Re: Cold start takes 4ever

Mercarb I might need a new fuel pump it's the origina, wouldn't it not pump when warm or have some kind of problem then if it was bad?

 

[Merc4ever]

Re: Cold start takes 4ever

Isn't standard operating procedure 1 full pump of the throttle then back to fast idle? If I need a fuel pump would electric be better than mechanical with the 2bbl mercarb? What is the best make of pump to buy?