Hi all I have just bought a pioneer 620 chainsaw off ebay. It does not start and has no spark. I know I have to check the points on the ignition and I know I need the flywheel off to do this. And there in lies the problem. There are 3 tapped holes in the flywheel and I assume these are jacking points. I have tried with bolts to no effect. Am I barking up the wrong tree? Also the cup that bolts onto the flywheel that is part of the starter mechanism is worn does anybody know where I will find a new one? Sorry about the long winded questions any help will be greatly appreciated.