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On recommendation of a friend, I bought a cheap manual cam chain tensioner from Amazon. It was simple enough to install and seems to do the job just fine. The question I have, is: does the oil passage matter? I’ve read things about plugging it and I’ve read install instructions that don’t mention it at all. Do I need to be concerned about oil pressure or is it a small enough passage that it really won’t matter. Thanks in advance!
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You may have seen this but if not it is well worth the read.
 

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In production 2017 Yamaha ran an oil supply to feed the tensioner for lubrication, they changes one of the head cover bolts to incorporate a oil feed from the cam cap to the tensioner, Bulletin M2016-004 was issued for 2013 to 2016 models to update them.

I personally would never install a manual tensioner due to a chain does stretch over time & you are adjusting it to the tight spot, a adjustable tensioner can apply load to the chain in the tight & lose spots.
 
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