Bayliner throttle problem

[Bovegas]

Wondering if you guys can help me. I bought 2003 bayliner capri with mercruiser 3.0 engine. Previous owner told me boat stalled few times. So i decided to rebuild carb. He has changed fuel filter and and distributor cap. Today was the first day that i could test the boat in the water. It starts and runs fine. Only issue i have is that when i push thrittle slowly in the gear. It goes in the gear and while i am pushing throttle it starts to increase speed but then stalls. It just shuts the engine at certain point. If i would push throttle fast all the way it will work fine. So this only happens at certain point. Can you guys point me in right direction. Thanks

 

[alldodge]

Check your shift interrupter switch adjustment, probably moving and engaging slightly

 

[Bovegas]

I think its something with carb. Because i disconected throttle completely and tried with my hand and its happening after i move maybe a inch and only when i accelerate. If i do it fast and go WOT its fine. Also it doesnt happens when i deaccelerate. I have tried to play with links. Tried to make tighter or looser but it doesnt make difference. I am talking about accelaration pump link. I am thinking this must be vacuum. What do you guys think

 

[alldodge]

IMO part accelerator pump, and part something still a bit clogged in the carb. Your transitioning from idle to main jets, and there is a lag, so adjust and/or clean. May just adjust the accelerator pump a bit and fix

 

[TunaFish389]

Your accelerator pump seems to be working since you state that hitting the throttle quickly you have no issues.

I would double check float level/valve sticking. The slow accelation might not be enough to jar valve open as a sudden wot would. Just maybe..

 

[Bovegas]

Does this have to do aomething with little spring that goes in valve. I had option to install with spring or without but somebody said spring helps with sharp corners.