ticking at real low idle when cold?

[stang9gt]

I noticed today when the 05 400EX is cold and almost won't idle on it's own yet, it makes this ticking noise for a few secs, then it stops for a few secs, then comes back for a few seconds, and keeps cycling like that. As soon as I give it throttle the noise disappears until it idles back down real low again. Once the machine warms up and idles a little higher it doesn't make the noise any longer?????

[procircuit406ex]

cammin out

[stang9gt]

Originally posted by procircuit406ex
cammin out

????

[400eXr1d3rZ]

Do you have any aftermarket parts (internal parts)?

[stang9gt]

Originally posted by 400eXr1d3rZ
Do you have any aftermarket parts (internal parts)?

Only mod is an HMF slip on.

[quadman 05400ex]

mine does it to but kinda all the time i never had my vaelve ajusted ether maybe i should do that this could al so be ur problem

[stang9gt]

Originally posted by quadman 05400ex
mine does it to but kinda all the time i never had my vaelve ajusted ether maybe i should do that this could al so be ur problem

Just had them adjusted. I think if they weren't adjusted correctly it would make noise all the time, not just at cold, low, idle.

[quadman 05400ex]

hmm maybe it just needs to get oild up frist then it will stop ticking

[stang9gt]

I was kinda thinking (hoping) that maybe it is idling so low that it isn't producing enough oil pressure to pump up a lifter??

[procircuit406ex]

Originally posted by stang9gt
????

wtf you dont know what that is? yeah.....ok. its when your cam is
rotating,theres nothin wrong with it

[EXriderO2]

The ticking when you first start your engine is the decompression mechanism. it ticks on and off untill your motor is up to proper operating temperature.

[81 clark racing]

its the decompressor on the cam like said above