The weak link:
Originally Posted by jct9841
Looking at 2001 - 2003 Dynas with mileage ranging from 5k to 35k.
What kind of mileage can you expect on a normally maintained bike before it needs work?
Should I rule out bikes with mileage over 30K?
Thanks in advance,
These tensioners have 23,000 miles on them and as you can see are pretty worn. The issue here is that while stamping out the chain components, the die cutters become worn. Because of this, some have rough edged chains while others had the luck of smoother chains.
Many have reported failures from these worn out tensioners in the 25k miles range, while many others have gone for very many more miles without a problem. If you do change tensioners, the chain is likely polished smooth enough by now to make the next set last longer.
You asked how long before it "needs work".
My thoughts are that 20,000 miles is time to "check" the tensioners to see if they are worn. If they check good, you have little else to worry about.
There were some issues with the crank run-out, but that is not really mileage dependent. That's more from driver behavior. Burnouts or hard downshifts often cause the press fit crank to slip. Any unusual vibrations during your test ride should alert you to keep looking for other bikes and shy away from purchasing that bike.
So to summerize,.... if you by a bike with 20k miles or more, it will be worth your efforts to inspect the tensioners when you get home, and change them if needed. This will help avoid a horrible disaster, should they be worn enough to fall apart and clog your oil passages. I would NOT let this stop me from buying the bike, and the process of inspecting your tensioners is not that difficult.
I would consider this inspection a "must do" for any tc88 with over 20k miles on it,..... regardless of how many "I never had problems" stories that you might hear. Too many faliures out there, mixed in with the "no problem" guys.