You can also shop online from Walridge at
walridge.com and download the catalog. However, it is a truncated list of parts and not their full selection. The Canadian exchange rate isn't good for us in the States, though.
As far as compression is concerned, I have no idea what you should expect, etc. I remember that when I first picked up my bike, I put a compression tester on both cylinders to verify that they were at least close. I'm sure my compression is actually a little weak compared to 'tight' motor. Probably not even worth me checking for you. Someone on here will be able to tell you what you should look for.
