5L20 needles 1UA 00 carbs

[lc350pete]

Hi where is the best place to get 5L20 needles for 1UA 00 carbs ?
I have emailed Allen’s performance , although their site doesn’t show them so I was wondering if anyone else sells them ?

Also having issues with left hand side running rich, think it’s not right at about 1/4 throttle so planned to drop the needle by 1 slot so see if that helps then noticed that I have 5K1 needles so need to change them
The right hand carb also has 5K1 needle but the plug colour is spot on the right hand side which is puzzling as they are both setup the same

Both carbs are otherwise set up as follows
5k1 needles (incorrect for 1UA 00 carbs ) Second from top slot
185 Main jet (powerjet carbs also is a pressed in jet)
27.5 pilot jet

Float hight and oil pump setup are correct bike is in standard tune with Allspeeds and mechanically good

[lc350pete]

Looks like I’m out of luck unfortunately, Allen’s performance has had them on backorder from Mikuni for a long time
It’s beginning to look like I need to think about a new set of Carbs when I can afford it they are about £300 for a decent second hand set or about the same for a new decent set from Norbo
My bike is actually a 31K but has had the powerjet 1UA 00 carbs since I got it

Just Had a thought, if I changed the emulsion tube and jet for a 31K one would that work in the 1UA 00 carbs and 5K1 needles ?