The enjine is running and if I push the throttle lever the chain is not moving

philip, May 2012

Assuming the chain brake is not on......

Is the engine RPM increasing? If so, then the drive is disconnected from the chain (disintegrated clutch or broken crankshaft - both uncommon, but not unheard of),

If not, the clutch/chain is jammed somehow.

phil_saunders(a)bigfoot.com

Phil Saunders, May 2012

Congratulations, you have won the numpty of the week award. This is awarded to those people who give the least amount of info in their query.
The enjine is running and if I push the throttle lever the chain is not moving. This means something to you but nothing to the rest of us. A bit more info wouldn't go amiss.

DB, May 2012