Hi,
first thing you'd should check is:
do you have a manual or automatic tension spanner for the chain?
The manual version has a bolt with nut under the stator plate.
If you loosen this, there's more space for the chain.
Automatic: loosen the bolt on the bottom of the engine, the second biggest screw (next to the oil drain plug)
Some small parts will fall out. No worries, just remember to put back everything.
It's easier if you get the chain around the sprocket before mounting the sprocket back on the cam.
Then, set the cam timing right before moving the sprocket forward and tighten it with the srews.
If you really have to remove the stator plate (which shouldn't be necessary).
Remove the big nut of the flycheel.
Use a flywheel puller (!!!) to get the flywheel of the crank.
Loosen the 2 screws on the stator plate. And pull the plate off the crank.
Re-set ignition timing.
That's all folks!
