THIS IS NUTS sticking needle valves in carbs

[reynold460]

hey guys have sticking needle valves in carbs on a 1984 115 hp mariner inline trash motor with side float bowl carbs ok this junk has had stickin needle valves for 3 years now have taken the boat to 4 different repair shops for them to tell me it was the stator,switchboxes,fuelpump, so i have good spares for all this stuff now. but to beat everything i put new needle valves seats on carbs take boat out sticking again i know im not the only one this has happened to so how do u fix this cuz putting new needle seats on it will be the same as i already have this is crazy

 

[j_martin]

Re: THIS IS NUTS sticking needle valves in carbs

Gotta be something in your fuel, like the resin from an equally old fiberglass fuel tank, or maybe something being "added" by a sneaky terrorist. (neighbor kids)

Another thought is that modern fuel when left setting, especially without added fuel stabilizer, forms varnishes. For this reason, most of the fuel I run through my XR4 is stabilized. If I do not plan to run the boat within a week or 2, I go to the trouble of draining the carbs or running the fuel out. That way, the next time it's run, the floats are hanging on the stops, the valves are wide open, and fresh fuel floods through for a few seconds cleaning the little bit of debris on the needle valves off.

 

[reynold460]

Re: THIS IS NUTS sticking needle valves in carbs

dude these needles seats are new first time use knew they were gonna stick when i put them in cuz they were tight its crazy

 

[Coloradolakeboy]

Re: THIS IS NUTS sticking needle valves in carbs

Are you replacing the seats as well as the needles?

 

[j_martin]

Re: THIS IS NUTS sticking needle valves in carbs

dude these needles seats are new first time use knew they were gonna stick when i put them in cuz they were tight its crazy

My name isn't "dude", it's "sir".

The needles should move freely in the seat. If you replaced the seat, perhaps you over torqued them or used a poor tool and caused them to get distorted.

 

[aussieflash]

Re: THIS IS NUTS sticking needle valves in carbs

Should not be tight,should be free as a bird so it can float just like the one in your dunny(toilet).same concept.Make sure you got the correct needles for your carb#.Do they all stick/tight???