So I got my carb rebuild kit (still waiting on the replacement for the missing jet) and went out to start the rebuild process. When I removed the float I noticed that one side was full of gas. My question is can I repair the pinhole and if so, what do I use? I know that I am being cheap and impatient but I don't want to have to wait another week till the part comes in. I've had the bike a week and a half and have only gone around the block on it once when it was barely running. Any suggestions?
float repair?
- Thread starter moonie527
- Start date
The float I peeled out of one of the carbs on my cb350 had JB weld on it. I lasted about 200 mi before it went south and started pouring gas out of the overflow 5 seconds before a group ride.
JB weld should work for a while but don't wait for it to fail again. Be sure you clean up the area well with light steel wool and alcohol before glueification.
Josh
JB weld should work for a while but don't wait for it to fail again. Be sure you clean up the area well with light steel wool and alcohol before glueification.
Josh
Yes, solder it!! JB weld is kinda sketchy. Just make sure you don't put gobs and gobs of solder on your float or it will change the weight of it a fair bit, which isn't something you want. Just clean it, rough it up with steel wool or sand paper, fix the hole with as little solder as possible and have at er!
liam
1970 cb350/1980 xs250/2004 klx400/BMW E30 323I
i took the bottom off, and took a picture, basically the dome of the float has been inverted on both floats in one carb. it almost looks deliberate, i can't imagine how it would build up enough pressure to crush the float accidentally.moonie527 said:
so i was thinking i could drill a hole in each side, and then pull the dent with a wire hook, and solder the hole up, but guess if there's no easy fix i should buy new floats. i was hoping not to spend any money on the carbs because i wanted to check the motor runs before upgrading to mikuni carbs.
so this isn't normal is it?
Roustabout
Been Around the Block
Unless your bike was salvaged from the bottom of the ocean, pressure would not crush your float 
Somebody probably dropped the carb while the float bowl was removed. As long as it doesn't leak, I wouldn't worry about it. There will be enough buoyancy to activate the float valve.
Somebody probably dropped the carb while the float bowl was removed. As long as it doesn't leak, I wouldn't worry about it. There will be enough buoyancy to activate the float valve.
liam
1970 cb350/1980 xs250/2004 klx400/BMW E30 323I
oops.
i chucked it in some boiling water, and then heated it up with a gas flame, the air inside definitely expanded but only succeeded in bursting the soldered seam at the back. i may take off the back the whole way, push out the dent, and then solder it back up. i can't damage it any more after all.
anyway, thanks for the tips, it was worth a shot.
i chucked it in some boiling water, and then heated it up with a gas flame, the air inside definitely expanded but only succeeded in bursting the soldered seam at the back. i may take off the back the whole way, push out the dent, and then solder it back up. i can't damage it any more after all.
anyway, thanks for the tips, it was worth a shot.
Mortikan
Coast to Coast
if you can find them I have these alloy brazing stocks that have the flux/ alloy all together in one rod. you heat up the object to be sealed and as soon as the rod melts it creates amazing welds. I will get you the name of the stuff. It can be sanded and painted with acid etching primer for the first layer.
I bought it a few years back at the state fair. I have done the top of my triple trees and a few other parts. apparently they use to use it in ww II for the fighters fighting to keep the UK free. patches large areas very nicely.
mortikan
I bought it a few years back at the state fair. I have done the top of my triple trees and a few other parts. apparently they use to use it in ww II for the fighters fighting to keep the UK free. patches large areas very nicely.
mortikan