Big fuel leak - NS8B

IDFISHER

Petty Officer 2nd Class
Joined
May 11, 2017
Messages
158
I have an NS8B Nissan 2 stroke and when I pump the primer bulb fuel dumps out of a hole on the port side of the carb near the top towards the front. Can anyone tell me what's going on and what I can do to fix it? Is something not seated properly or am I missing a plug or screw?
 

dingbat

Supreme Mariner
Joined
Nov 20, 2001
Messages
16,365
Knowing absolutely nothing about the motor, my first thought is the carb float is sticking allowing fuel to fill the carb beyond capacity. The excess fuel escaping from a vent
 

Sea Rider

Supreme Mariner
Joined
Sep 20, 2008
Messages
12,345
Need to disassemble carb, remove float and check needle valve cond, if tip is not pointy and sharp, replace it. Dampen several Q-Tips in Acrylic Thinner, introduce into valve seat and cleance exerting pressure in circles till last Q-Tip comes out clean. Check float height por proper needle closure against valve seat..

Happy Boating
 
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