Join Date: Nov 2009
Location: Lander, Wyoming
Just so that you have a better understanding of the balancer chain system, I'll offer this.
If the engine is coming Up on compression stroke when the key is turned OFF, the crankshaft may rotate Backwards a bit. This can place the balancer chain slack on the wrong side of things to properly re-tension the chain by simply loosening the locking bolt.
My best advice is to always remove the 2 plastic plugs on the LH flywheel cover and using a 19mm socket, turn the engine CCW to TDC mark before attempting to allow balancer chain adjustment. This will allow the spring to remove all of the balancer chain excessive slack.
Modify at "YOUR OWN RISK"!
Still riding my 1987 KL650-A1. 85,000+ miles & counting