Topic: Cracked carb CB750F1, possibilities?

[ransack]

I'm rebuilding the carbs/tuning up because WOT would cut out, and generally the bike was sluggish.  It was difficult to hit speeds over 65.  After tearing the carbs apart for the rebuild, I discovered one of the jets housing/threads are cracked.  See below.

The jet itself threads beyond the crack, so I believe its not leaking, but I could be wrong.  Fixable?  Need a new carb?  Could cause the sluggish behavior?

Thanks

[ekpent]

Somebody probably just put the jet holder assembly in to tight and hard.Did it feel super tight when removing.Those do not need to be overtightened That alloy is a little fragile. I had one like that that once that I patched with a product called Seal-All once. Maybe a little dressing of JB Weld might be a good idea around the cracks.Keep the stuff outa the threads.

[TwoTired]

JB weld won't hold up to gas long term.

You can get the body welded up.   PM big-jim
Or see:  http://www.jmfmicroweld.com/

Cheers,

[ekpent]

The micro weld would def be the best.

[MiShift]

Hey man, if your getting a new carb for that cylinder would you want to sell the bowl? I'm in dire need of a bowl after that silly little tube for overflow broke.