04-24-2021, 04:14 AM
My hat is off to Max, again! Thank you for performing this test and posting the results Max. I have a question though. In your third picture from the top the chain appeared to be pretty tight - there wasn't any droop of the chain on either the top or bottom. Measuring chain slack is a highly subjective process, and depends entirely on the mechanic. I would bet you can measure a half inch difference in chain slack depending on how much force you apply to the chain to deflect it during the measurement. What one person calls "acceptable" chain tension, another person may call "too tight". After I snapped the countershaft off on my CR500 I have been very careful to not over-tighten a chain. When I measure my chain slack I put very minimal force on the chain when deflecting it to obtain a measurement. If you can P.M. me your email address I would like to share with you the photos I took performing a similar chain slack test on my XR650L, and I am very interested to hear your comments. Thanks again Max.