Jetted now leaking fuel?

[LeeC]

Hey guys, I just did vf3's, full exhaust and an intake, I put in 280's and 27.5's as a starting point, started up fine, probably need to move down to 270's but regardless. After having the carbs apart, the right side carb (without the choke) is now leaking fuel out of the drain tube as if the float were stuck. Everything is put back together correctly and both floats were free, didn't have this problem before the bike was apart. Any ideas?

 

Also, I did notice that in the left carb, there is a small brass tube coming down from the carb into the bowl area, it is pressed in. I am not referring to the one on the actually bottom bowl piece. As both of them have that, but I noticed my right carb is missing the tube. I've checked parts diagrams and search for pics but nothing comes up, I am guessing that it had something to do with the choke but wanted to post up to be sure!

 

Any input is appreciated!

 

Thanks!

Lee

[Larry's Shee]

That's how it draws fuel up for choke. Is leak from vent tube , one each side of carb? Or bowl drain at bottom of float bowl. If bowl drain , pull tube , tighten drain screw.

[thrill-billy85]

That's how it draws fuel up for choke. Is leak from vent tube , one each side of carb? Or bowl drain at bottom of float bowl. If bowl drain , pull tube , tighten drain screw.

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he not talking aboutthe over flow brass tube hes talking about the brass tube coming down from the main body of the carb INTO the float bowl.

 

ONLY the left side carb has it. its the choke siphon tube. NOW heres the thing..... the tube feeds down into that hole... both float bowls look the same but are not. if you look down into that hole on the LEFT carb there should be a tiny brass jet at the bottom. if not make sure your float bowls arent switched. IE. ONLY the left side carb has the tube going down, and only the left carb has the choke circut.

 

now for the fuel leak. yeah the screw might be loose, but thats probably not the problem. you may have bent the floats. therefore while the float bowl is off they seem to function properly, but when you put the bowls back on it hangs on something in the bowl. take your time and put the bowl back on, but before putting the carb back on the bike turn in upside down and LISTEN. do it with the one thats not leaking and make sure they sound the same. either way, its probably your floats sticking. if youre sure theyre not then spray the hell out of the floats and valve with carb cleaner and blow them off with compressed air... worked on my buddys blaster.

 

its probably not the drain screw, cause you probably didnt fuck with it when yo did your jetting. ill bet $ its the floats.

 

 

my buddy just had this EXACT problem on his blaster which use the SAME carbs... 26mm mikunis