Hi, I took out my carb on kawasaki el250 forgot how throttle cables were connected. a picture of both sides would help out alot!

There should be a knob between the middle carbs. Usually on the bottom some on the top. Follow the throttle cables to the carbs and look around there.

the throttle cable DOES NOT attach to the carb on that engine. It attaches to the control panel underneath the carb. you have linkage rods that connect and they either have clips or you need to pull the carb mounting studs

All kawasakis will only go into first gear or neutral until you are doing approx 12 mph...

When did you last change your air filter? there is also a separate filter assembly on the top of the housing. Are the air box/carb rubbers in good condition and sealing correctly?. Had the same problem on mine and it turned out to be the rubbers had came of the bottom of the carb

RH side on the carbs under the throttle cable connection to the carbs. Screws in from below. You'll have to loosen the fearing to get at it.

jets sound like they are worn blocked or similar. you might have to clean it all again or try fuch's pro fst to clean them up. have you vacuum balanced them?

Turn off the gas and remove the float bowl. Remove the fuel line. Remove the float pin and float with needle valve. Do not bend the tang that the float needle sits on. Spray carb cleaner into the seat where the needle valve came from to clear out any trash in the valve casing. Spray the float bowl and interior of the carb. Remount the needle and float back in place and put the float bowl back on. Install an in-line fuel filter. The diagram below shows a 1994 carb Yours will be the same or close to it.

A “very helpful” rating on this answer? Thanks!