Grand Prix 250
Main Motorcycle: Triumph Thunderbird 2001
Join Date: Aug 2007
Location: Brisbane, Queensland, Australia
My suggestion is - If it ain't broke, don't fix it.
You might not have the same trouble I am having as my bike has done 50k miles, but to be honest i wouldn't be touching them so early. It can be a mongrel of a job. It took 50k for mine to need attention. As someone said to me a while ago, unless you ride really hard you shouldn't need to touch them often. At 50k I only had to replace four shims. To do so I broke two hardened torx wrenches and put a twist in one impact wrench torx socket. I didn't use said tool to compress the valve springs, nor did i remove the camshafts. I just loosened the caps screws right out and lifted the cam shaft up high enough to get the shims out with a long magnet. I had to reset the chain timing marks afterwards.
Getting the cam cover back on without losing the gasket is another joy. There are plenty of other things I would be doing to the bike before taking on what will probably turn out to be an unnecessary inspection. Check out the threads on rejetting carbs, drilling exhaust and air box, fitting K and N air filter.
Or just ride it and have fun.
all the best