Checked the chain for the oil pump and it was very sloppy! I can move it about 20-30 mm sideways!! Is it OK or should I replace it? Is it important to replace the sprocket in the crank-shaft??

But then I'll have to remove the magneto-flywheel? Otherwise it seems impossible to remove the intake filter.
If so; do you have any tips for removing the flywheel?? A special puller is needed that has 3 bolts to thread (M6?) into the holes in the flywheel - is there any other method?
Gruss
Lars

Thanks a lot! I'll hurry home and pull out the pump!
Still about 20 cm of snow here in south of Sweden so there is no real hurry...