What is the problem with my 1967 XLCH, jumping in 3rd gear only with no throttle, with throttle is no problem

 

My ironhead used to have a catch in 3rd gear when accelerating. Turns out it had a tooth missing on the third gear sprocket. Repost your question in the ironhead sportster section with as much detail as you can and maybe someone up there can help.

carl

 

Check the dogs and the mating holes on the 3rd gear, they may be worn causing slipping while not under load but when under load they stay put.

 

Thanks, I'll check it out this winter