Quote:
Originally Posted by Juanro
Perhaps a loose or broken cam chain tensioner? And the sound is the chain randomly slapping around? That's an easy check/fix
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Quote:
Originally Posted by Juanro
It's "automatic" (spring + ratchet), is that right there where you're sound probing
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Indeed, the NC250 engine has an automatic, cam chain tensioner (ACCT).
Here are instructions for inspecting the ACCT, from the following thread.
http://www.chinariders.net/showthread.php?t=15545
First remove the center bolt to release the spring pressure.
Remove the spring and O-ring.
Remove the two screws at the base of the ACCT.
Caution:
After removing the ACCT, return the plunger to its initial position by pressing on the locking cam, and pushing the plunger to the base of the tensioner.
__________________
Spud
"Never argue with an idiot. He will drag you down to his level, and beat you with experience."
Mark Twain
2015 Zongshen ZS250GY-3 (RX3)
2006 Zongshen ZS200GY-2 (Sierra 200)
2005 Honda XR650L
2004 Honda CRF250X
1998 Kawasaki KDX220
Mods made to my Zongshen ZS200GY-2:
http://www.chinariders.net/showthread.php?t=6894