[vroomy]

So I've just bought a 2010 DS xmx. There seems to be a real loud ticking/ maybe slapping noise coming from engine at idle?? Goes away when it is revved. Could it be cam chain? Is it common and fixable? I'm pretty concerned

 

[alex-ds]

It's quite common, the rotax engine is a little noisy.

Do you know many hours aprox has the engine?

 

[kidinloghouse]

the cam chain tensioner works off oil pressure. I'd check the oil screen at the bottom of the oil tank if that gets plugged up you'll lose oil pressure as well

 

[vroomy]

guy reckons 40-50 with new piston at 30, but i reckon more looking at the bike

 

[vroomy]

So I did oil/filter change, still have the noise comes in when back of throttle and idle drops a little. Really sounds like the cam chain slapping

 

[vroomy]

Can anyone provide insight on this? I'd rather have some idea before I take it to a mechanic

 

[bad moose]

Did you clean the strainer in the oil tank? Like alex said these engines are noisier than most. Did it just start doing it or has it always done this?

 

[vroomy]

Yeah checked the oil tank when I did oil change. I've only just aquired the bike so not sure how long it's been going for? I understand that engines are noisy but is a very distinguished sound. And when I switch engine off it makes one last louder tic when it stops

 

[Curtisrebuilds]

Yeah checked the oil tank when I did oil change. I've only just aquired the bike so not sure how long it's been going for? I understand that engines are noisy but is a very distinguished sound. And when I switch engine off it makes one last louder tic when it stops

Did you ever figure out what it was? Have the same issue on my 08 ds450. Ready to tear the motor apart but would rather not If I don’t need to.