What are your thoughts on changing out the internal links on the 2013 Yamaha F200i4? There are three on the engine that are fairly obvious and easy to access, but it appears that there is a bit of engine dismantling necessary to change out the ones that are a little more internal. Has any one done this? How many hours before that should be considered. Anyway to check them with out the dismantling, or would one go by the condition of the accessible ones as a guide to the rest. Mine GW is garage kept and flushed after every use, approx. 80 to 100 hours a year. Would appreciate thoughts on this maintenance issue.