Originally Posted by TobyG
No need to buy it from anyone, just make one yourself.
As for how to make a TDC bolt and on checking the valve clearences (technically you do not need a TDC bolt to check the valves, however, it makes things easier, in my opionion) check faq.f650.com
Thanks. I saw a video where a guy rounded off the end of a gas tank bolt. Is this the method you are talking about?