400ex well not run please help

[nightmare311]

ok heres whats going on 2 days ago it was running fine. yesterday I went to ride and it
kept bogging bad so I turned it off .when I went to crank it back up it wouldn’t idle.and if
it does idle it only idles for a min and it will nit come off idle.ok I have changed the
sparkplug ,cleaned the carb real good ,cleaned the air filter and checked the jets. im lost
someone please help

[tater_kamik]

what do you mean by checking the jets? adjust your a/f screw, see what happens

[nightmare311]

i checked the jets to see if they where clean. and i did adj. the a/f screw it didn't help:(

[nightmare311]

come on no one has had this happen??

if u have a disk muffler the disks could be clogd up.

[icy1155]

could be its outta time... just a thought... something similar happened with my cousions suzuki 230... was really bogged down... couldnt get it out of idle pretty much no matter how u cranked on the throttle, turns out he had knocked it outta time riding on a rough trail.

[nightmare311]

the bike is stock. i checked the timing it was fine. i think it mine be time of a new carb.

gas filter mabby cloged if it has one

[aviator4]

If you can't get it to idle, how did you check the time?

Have you checkd to make sure you exhaust isn't clogged? It'spossible that the muffler has filled with carbon.

Also, have you checked compression?

Checked for good spark from the CDI?

Good signal TO the CDI?

Are you running NEW fuel? is the tank full?

Checked to Petcock to make sure it's not clogged (and the screen in the tank as well)

Checked the fuel line to make sure it's not kinked?

Is the new plug gapped right?

Checked to make sure your intake boot is sealed to both the carb and the head?

Clogged Air Filter?

Did you blow out all the passages in the carb when you cleaned it?

check the float level in the carb when you put it back together

[motoboy66]

water in the gas? drain your bowl

my stock muffler i stok on and it had a chip monk nest in it or some kind of nest and it wouldnt idle to good so i kep reving it and it blew all the junk out the muffler and it ran good.