HELP pls. 33 mikuni smoothbores

Hello,
I have a set of 33 mikuni smoothbores with a broken float tower.



Can it be repaired or am I F#*@%D

Thankyou Harvey

Would anyone have a no.1 carby to replace v33 14

Again thankyou Harvey

Still have the piece that broke off?

Graeme you may be able to drill and pin it or we could drill and tap the carby body and make a new post to hold the float pin and screw it into the tapped hole in the body give me a call

Regards Dale

Patton wrote: Still have the piece that broke off?

yes in my right hand with a hammer in the left.:whistle: :blush:

I got a link from Kraz1 to "motorcyclecarb.com.inc" They do

alluminium laser welding on carb float posts.

Thankyou Harvey

COE1948 wrote: Graeme you may be able to drill and pin it or we could drill and tap the carby body and make a new post to hold the float pin and screw it into the tapped hole in the body give me a call

Regards Dale

Thanks Dale I'll give "motorcyclecarb.com.inc" a call.
What was that forum you metioned earlier. text if you want.

Thanks Graeme

Alternative to welding, and as a possible supplement to drilling and pinning, might consider JBWeld.

Could use JBWeld and a tubular brass sleeve (for added support) over the round portion of the post (upper and lower) with the sleeve relieved to fit down over the stump.

Alternatively, could JBWeld the broken piece onto the stump, and add a vertical brass "slat" on opposing sides of the post along the rounded portions to help hold the broken piece onto the stump.

When applied correctly, JBWeld will survive a long time submerged in gasoline.

Good Fortune!

Patton wrote: When applied correctly, JBWeld will survive a long time submerged in gasoline.
Good Fortune!

to my knowledge there is only 1 way to apply jbweld, kneed and stick. i have found that it deteriorates in a float bowl.
do u have a special method of aplication?

Some very reliable folks have reported good results from using JBWeld to repair broken float tower posts as well as cracked or broken over-flow tubes, and as I recall, also pin holes or cracks in a fuel tank.

For example, see the following:

Click > kzrider.com/forum/3-carburetor/179315-oooh-nooooo#179320

An uncertain, but vaguely recalling from other readings that attempted JBWeld repair failures may result from improper application or insufficient set-up time allowed before placing into service.

Perhaps ethanol might be a factor?

Good Fortune!

the ethanal content is higher these days. the jb weld went funky on mine . now i am using gas tank repair, but it is going bad too. i will try to weld them next.