Last Saturday i open and clean the carb, change the spark plug of my italjet millennium 150 because it wont start after doing it yehey engine was running and made a few adjusment and rode the bike for 3 hours and was perfect. Today Monday it wont start fuel wont go up the carb and this bike has no choke. What would i do next ?

remove spark plug.attach spark plug wire.make sure metal part of spark plug is grounded to engine.get in a dark area{sparkis difficult to see vin sunlight.crank engine.if no spark check plug cap.if ok it's probably the electronic ignition module.

Crank engine a few times. If spark plug is dry carb needs dismantling and cleaning. Probably gummed up.

for kx125, that kind of problem i kind of remember my friend just like that too. so clean everything inside . so u have to changes the valves and also the lifter then do the piston pin too,.also chick the rod if in good! that's it for now then when u do that tell me what going on!

New Spark Plugs--every 70,000 miles
Clean MAF Sensor
New O2 Sensors--100,000 miles
Fuel Filter-every 3 years

Check TPS Sensor for opens

Is it similar to italjet formula 125?

has the bike sat up for any amount of time?? if so first clean you carb, replace spark plug. when was the last time you had the valves adj.? remove the airbox and spary alittle carb cleaner, starter fuild , wd-40 in the carb with the thorttle wide open, then close the throttle and see what happens if wants to start clean your carb.
good luck ride safe
Mark
C.C. Motorsports

first are you getting spark?second are you getting fuel? to check the spark take out the plug and put it back into to cap(holder) do not touch the plug and turn over the engine.you will see a small spark.if not you starter coil is bad.to check the gas look under the carb there will be a overflow hose by the overflow hose is a flathead screw,open it if no gas comes out you will need to take out the carb and replace the float valve.

Hi I am Vortash sounds like you may have got some contaminated fuel .. ( water in fuel ) empty your tank of old fuel completely .. take your spark plug out and kick start the bike repeatedly to clear the fuel out of the system if you have a carb bowl drain screw open it and drain the old fuel out leave the spark plug out and let it stand for half hour or direct a hairdryer down the plug to evaporate any excess fuel that may be in the crankcase sump . Refill with fresh fuel and try again with a new spark plug . hopefully that should cure your problem .. regards Vortash

You need to give the carburetor a good cleaning, as well as the air filter. Chances are the carb. will need a new carb. kit since it has been years since you last used it. If you need tips on how to clean the carb., just let me know.

Jim

Hi

You need to get two things checked. Ignition and Fuel.

Ignition: typically in this order ... Start off from sparking plugs ,,, move to leads (get them changed) and on to the ignition coil if there is no spark coming out of it. In case of fuel, the carb needs a clean and a good carb cleaner or fuel treatment (added to the fuel tank) wont do any harm. You should open up the carb filter. Remove it and change it if its dirty. Start the engine rev it up and while its revved up (throttle flap open) spray the carb cleaner or in this will clean the carb cleaner from inside. If the power gradually increases its a clear sign that you need to open up the carb and get the jets cleaned. properly.

Hope that this fixya will get you on the roads soon :)

Regards :)