mcferreira100 Posted October 18, 2013 Author Posted October 18, 2013 This carb still chucking fuel out overflow. New float valve installed and no change. Fiddled with tang to adjust floats..got overfilling stopped, but then bike was getting no fuel and would not start. Moved tang back a touch then bike starts but fuel coming out overflow again. Took carb to a friend of mine who suggested the float valve from Yambits is faulty. The pin on the needle sems to have too much tension on it so floats won`t be able to close it. Can this be?..when if i bend the tang way down the fuel is stopped completely. I even tried putting the old float valve back in but still overfills. Any suggestions? Should I fiddle the tang more with new float valve installed? If its set to spec though (21mm), it persists in overfilling.
mcferreira100 Posted October 19, 2013 Author Posted October 19, 2013 Set float height to 24mm..carb overfills..set to 25mm..carb gets no fuel. Surely this new float valve is faulty.
Moderator Airhead Posted October 19, 2013 Moderator Posted October 19, 2013 are you putting the float in the right way up? It does matter, they are designed so that they dont drop down so far as to allow the valve to get dispiaced and jam up
mcferreira100 Posted October 19, 2013 Author Posted October 19, 2013 Yep..can only go in one way really..wrong way round does not look right.
mcferreira100 Posted October 21, 2013 Author Posted October 21, 2013 Took the carb to a specialist..after some blowing and sucking tests he found the brass tube in the pic to have a leak somewhere...no wonder bowl overfilling. He put some epoxy on it and assures me there`s my problem cured. I`ll be sure when I test it on the bike. WIll make sure epoxy sets first.
slice Posted October 21, 2013 Posted October 21, 2013 Not to be a party pooper but is that epoxy fuel proof? just thinking that ethanol will melt most so called "FUEL PROOF" glue and such, might be an idea to soak it first before you attach it to the engine! Hope it is and will watch with interest your fun and games with the problem you are having. Best of luck.
mcferreira100 Posted October 21, 2013 Author Posted October 21, 2013 Didnt ask him but I will expect as this is a carb specialist he would have used something that will work.
mcferreira100 Posted October 21, 2013 Author Posted October 21, 2013 I`m over the moon..fitted carb back on the bike..no more overfilling..bike runs lekka..even idles. Will see if it lasts.
Moderator Airhead Posted October 21, 2013 Moderator Posted October 21, 2013 I`m over the moon..fitted carb back on the bike..no more overfilling..bike runs lekka..even idles. Will see if it lasts.
blackhat250 Posted October 21, 2013 Posted October 21, 2013 Hoo ray " its a learning curve,,, for us all,,,, thats a new one [ fault...]
Recommended Posts