2006 Yamaha 50hp 2 stroke carb issue

CSkiff06

Recruit
Joined
Jun 19, 2015
Messages
2
I've been having multiple problems with the carbs. I just purchased the boat 2 months ago, so far I've cleaned all the carbs replaced the float which had a leak in it on the second carb, changed the gas tank and gas line going to the motor and changed fuel water separator. the other day I had the boat out after about two hours I started to head back in while the motor started loosing RPM went from 30 mph to 8. I took the lid off and noticed gas coming out of the bottom carb weep hole. It would rev up every now and then like it would try and run full rpm but go right back down. I trailered it raised the motor all the way up then took it back to the house. When back at the house I put the ear muffs on it and it cranked right up and ran fine. This is the second time this has happened and suggestions on what it might be. Anything will help at this point.

I've ran non ethanol in it ever since I got it
 

99yam40

Fleet Admiral
Joined
Sep 7, 2008
Messages
9,228
fuel leaking out if the vent on carb means the needle and seat are not sealing off and is overfilling the carb to the point of overflowing
 
Top