Hi. I cannot seem to get my zx to tick over and will not start unless choke is applied. When choke is applied it dies on reving and if I turn idlescrew on side of the bike it also cuts out please help thanks

SOURCE: Yr 2000 thundercat, won't idle unless choke fully on

First thing I would try is some sea foam, you can get it pretty much at any auto parts store...put it in the tank per instructions on the bottle, if the carbs are gummed/dirty... seafoam is you best hope at getting them clean without pulling them.

If sea foam doesnt work, you'll have to yank the carbs, but before you do... pull the tank, set it backwards where the seat was, get about a two foot fuel line (air line works just fine) run it ti the tank and start the bike, take a can of starting fluid (WD 40 works too but stinks when it starts to burn off afterwards) and spray around the base of the outside of the carbs where the boots connect it to the intake, if the engibe revs, you have a leak...cracked boot probably.

If no leaks are detected... then yank the carbs, pull the bowl covers and start cleaning....also, while you have them off pull the slide covers off and check the diaphrams on the needle for rips or cracks as well.

Check/clean.. put everything back together... if it still isnt running right then I have no other suggestions... certainly sounds like an air/fuel problem... if were anything else choking it wouldn't make it better.

SOURCE: the motorcycle will only start if the choke is all

a choke is designed to restrict air so that the mixture is rich (more fuel) for warm up. no choke should be used after 5 minutes or so. heres what you need to do. take the carb apart and on the bottom in the bowl of the carb are your jets make sure they are all clean and clear so that all circuits are open (quarter throttle, mid throttle and full throttle.) each jet controls parts of those three ranges. also turn your mixture screw which is usually located right under the motor sie of the carb. turn it all the way in then out 2 turns if you live in high elevation, turn it out only 1 turn and see how it all works. one last thing your problem might be solved by he second option first so try it first.

SOURCE: bike idles on choke , engine dies on acceleration drz 400 e 2003

try using that redex stuff get back to me

SOURCE: Engine dies when choke is taken off or when throttle is applied.

where the valves set cold or hot? could make the world of a difference...is there intake leaks? bad floats perhaps....its a problem that will take some time cancelling out problem by problem