125-200cc not cracking...any idea s?

01 cr 125 spark is good. will crank and idle for about 20 seconds. Bogs out once the throttle applied. running 50:1 mix ethanol free. any ideas?

Have you looked in the carb to ensure the jets/bowel are not clogged? How about your reeds, look good not frayed? Air filter cleaned or have obstructions?

If you have spark, then fuel and air are left to verify.

Clean the carb sound like fuel flow problem

clean the jets and check float height.

What they said. Fire it up again with the choke on. If it will run with the choke on then your jets are probably plugged. Most chokes today are separate enrichner circuits that bypass the main and pilot jets.