If you don't know what you're doing, you should not touch that tensioner. You need to go on Youtube and learn how to install it AND tension it, otherwise you're going to have one very dead engine. And if you're not 100% confident, you should find a shop that IS and that has done this in the past. If they don't, one/both of the cams can jump a tooth(s) and create some very unpleasant issues for you.
I agree with this. this is not exactly a simple process. and the stakes are high. If something isnt done right, it could spell disaster. and be expensive. So that's my disclaimer.
Remove the tank
Remove the airbox
Pull the throttle bodies
**You will need a long ass phillips head screw driver to get to the throttle body clamps. Like, a 2ft screw driver.
Remove the Pair Valve
Pull the spark plugs and coils
Unbolt the top bolts of the radiator
Remove the plastic heatshield between the radiator and motor
You will likely have to unhook almost all the wires you see above the cylinder head cover
Remove cylinder head cover, unbolt and roll it forward towards the radiator and out of the frame (it wont come straight up, and is a literal bitch to get out.
**Be careful not to damage the rubber gasket under the cylinder head cover, or else it will seep oil once you get it back together.
Zip tie the cam chain to the camshaft sprockets. One zip tie on each to keep the chain from skipping teeth.
Remove Cam chain tensioner
Clean off any leftover gasket material
Install new gasket.
**Ive never actually installed an OEM replacement CCT on any bike. It's always been a manual one so I have no clue how to adjust it. You will need to do something to adjust it before you install it.**
Once you install the CCT, you will need to verify the chain slack is within the acceptable range.
I may have skipped a few thing that need to come out, but seriously dude, its not easy like an oil change. It takes a couple special tools, and a mechanical understanding of how the bike and top of the motor is assembled. I dont know your mechanical ability, or what your toolbox looks like, but since you were unsure of where it is even located, I assume minimal. Maybe you have a friend who has done stuff like this before who can help? I'd feel real bad if you hand grenade your motor trying to do this without the proper understanding.