CMS-Japanese Motorcycle Supply Parts

A closer look at the manual camchain tensioner bolt - Honda CX500, GL500

Before using this site please read the site disclaimer. Also please note that any links provided may be part of an affiliate programme (viz. eBay, Amazon) which helps support the site as I will earn a commission when visitors make a qualifying purchase.

This bolt resides on the right hand side of the block at the back, beneath the right head and just above the inspection port. Once you remove the rear cover you can see it more clearly:


As you can see, there's an O-ring above the flange - and the flange will stop the bolt from being undone far enough for the O-ring to be changed, so if you have oil leaking out past the bolt head you're going to need to take the rear cover off to change the O-ring.

Someone did once ask how many threads there were on this bolt - looks like eleven to my eyes. This is not how many rotations to loosen it when adjusting the tension - 1.5 to 2 turns out is more than enough.

Search MotoFaction:

Follow us on Facebook!

Follow us on Instagram!

CMS-Japanese Motorcycle Supply Parts

Search MotoFaction:

In 2019 the server has had to double in capacity to support the growing site... please consider dropping the site a donation to help cover the costs! Check out our Patreon for support options, buy a shirt, buy our apps, use my NordVPN affiliate link to sign up to their service or donate via Paypal:

Paypal $5 link ->>
Paypal $10 link ->>