Just a quick update on my incontinence problem!
I discovered that the reason I couldn't tighten the banjo bolt wasn't that the thread in the Zenith carb was stripped, but that the new bolt I had bought was slightly too small.
![[Image: BanjoBolts.jpg]](https://tm-img.com/images/2022/01/31/BanjoBolts.jpg)
The new one (left) is 12mm in diameter whilst the one I had removed (right) is 12.5mm. I got the replacement banjo bolt from one of the club's recommended suppliers so I'm sure it is correct. My conclusion is that the Zenith carb standard connection is 12mm (M12?) and my carb has been drilled and retapped 0.5mm larger (possibly 1/2" UNF?)
I could put back the old bolt but would really like a new one if anyone knows where the 1/2" bolt comes from. Also, a filter for it would be nice as, of course, the standard one is too small.
(I have now ruled out getting a replacement carb as prices seem to be eye-watering)
I discovered that the reason I couldn't tighten the banjo bolt wasn't that the thread in the Zenith carb was stripped, but that the new bolt I had bought was slightly too small.
The new one (left) is 12mm in diameter whilst the one I had removed (right) is 12.5mm. I got the replacement banjo bolt from one of the club's recommended suppliers so I'm sure it is correct. My conclusion is that the Zenith carb standard connection is 12mm (M12?) and my carb has been drilled and retapped 0.5mm larger (possibly 1/2" UNF?)
I could put back the old bolt but would really like a new one if anyone knows where the 1/2" bolt comes from. Also, a filter for it would be nice as, of course, the standard one is too small.
(I have now ruled out getting a replacement carb as prices seem to be eye-watering)