2001 kx250 hunting on decelleration

[Mauler]

Hi all i have a slight miss on my kx when booting it then slowing down. It doesnt matter if i put the clutch on or slowing down engine decellerating. It can hunt quite bad sometimes. I have changed all fluids keep a clean air filter. Any suggestions. Ps i also have standard exhaust

 

[Mauler]

Any suggestions?

 

[WaltCMoto]

Explain "hunt"

 

[canyncarvr]

rev change is what you're referring to?

Probably an air leak.

Not that this is a kx forum. ;)

Common enough, though.

If you're referring to a 'popping' sort of sound..that's fairly normal, too. Everything else being ok (correctly jetted for example) an airscrew adjustment will change that and may get completely rid of it.

 

[Mauler]

Yes it has a rev change, the revs Fluctuate quite a lot. It is not constant but it feels like it jumps 2k rpms halfway through engine decellerating. I will check the air lines