yz 426 carb problems

[buzzgrizz]

There is serious bogg on top end or hard acceleration and the choke is sticking open when riding. After i push the choke in it pops back out after i start riding. I have never had any problems like this for the 3 years that i've owned the bike. Any input on what could be going on would be apperciated.

[William1]

Sounds like your choke plunger is due for retirement. Replace it (about $20.00) and retest.