Gary - K7GLD wrote: Elevation comes into play - I'm at a bit over 3000 feet - with surrounding mountain passes at over 5000 feet. I'm running an '83 KZ1100LTD with Kerker 4/1 pipes and pods - running about 136 main jet - Drilled myself - and 37.5 pilot jet, needle clips set at 3rd notch down in a 6-slot needle - bike runs great at all gear ranges and RPM - but for better power, 140 or better mains would deliver somewhat better acceleration, but already fast and powerful enough for my needs. Plugs read great, engine fires instantly, and idles great.
That sound like what I am after. I want the engine in a safe zone but do not want to smell like exhaust everytime I ride.
Mookachacka, I found this re-searching I dont know how good the info is but hopfully it will be helpful
Stock UK Spec. Mikuni 34mm carburettors as fitted to the following Kawasaki (UK) models.
Read L-R like this:
Model, Cross Pilot & Plug(Yes or No), Main Jet, Pilot Jet, Jet Needle, Needle Jet, Main Air Jet, Pilot Air Jet
GPz750R1, Yes, 110, 37.5, 4BE3, Y9, 250, 300
Z750L3,4, Yes, 110, 37.5, 4BE3, Y9, 250, 300
GPz750A, No, 110, 37.5, 4BC7, Y8, 250, 300
Z1000K1,2, Yes, 122.5, 37.5, 5FL52, Y1, 85, 350
Z1000J1,2, Yes, 127.5, 37.5, 5FLZ50, Y6, 85, 350
Z1000J3, No, 117.5, 37.5, 5CF58, Y2, 85, 350
Z1000R2, No, 127.5, 37.5, 5C48, Y4, 85, 350
Z1100A1,2, Yes, 120, 37.5, 5GX29, Y1, 85, 350
Z1100A3, No, 117.5, 37.5, 5CF58, Y2, 85, 350
Z1100R1, No, 130/5, 37.5, 5B5, Y8, 85, 350
Note: Numerical difference in main AIR jet size between the 750 and 1000/1100 carbs is huge whereas the difference in pilot AIR jets is much less.
Note: All the different main jet, needle and needle jet combinations.
Note: All have 37.5 Pilot Jets.
Note: Z1100R1 cylinders 1&4 - 130, 2&3 - 135 - presumably an extra cooling consideration for the two inner cylinders?
Note: All UK needles are 5 position adjustable (stock is No. 3 (middle) clip position)
I think I might just be drilling out my main jet and see how it does. I found jets pretty cheap on amazon.com also. Who would have figured?