TOPIC:

I have a 1980 KZ750 LTD U.S. model. I need to know what the thread size is on the air fuel screws. Number 2 carb was really damaged when I bought the bike. I bought a nice used one and rebuilt all the carbs. I just ordered new pilot air fuel mixture screws. I want to clean the threads before I install the new screws. any help is greatly welcomed.

6mm x .75

Thank you. so much some one told me it was 6 X .50. I know how to rebuild carbs. I just don't know the sizes of certain things once I learn the size I write it down .

Your restoration on your bike is amazing. I love all the photos you have of it.

KraZyJoe67! wrote: Thank you. so much some one told me it was 6 X .50. I know how to rebuild carbs just don't know the sizes of certain thing on I learn I write it down .

Mikuni pilot screws for their BS CV carbs use that size thread.

Thanks for the kind comments about my build thread.

My carbs are KEIHIN. Thank you so much for your help

Here are the O-ring sizes for your carbs. The interconnect tubes and main feed Tee O-rings get hard and brittle and the only way to change them is to ungang the carbs.

Pilot Screw: 1.2 x 2.6
Pilot Plug: 1.5 x 2.8
Fuel Transfer Tubes: 2.0 x 5.5
Drain Screws: 1.4 x 4.0
Float Bowl: 2.0 x 67

thank you greatly for your help.