HOTCAMS CAMSHAFT - STAGE 1 INTAKE

you dont have to but they work best with each other. whenever changing something on your engine I recommend checking you jetting but probably not.

depends on what bike. we do carry them.

To get the most potential power then yes replace both cams.

Hot cams inc recommends to install the intake cam if you use it for xc/trailride, both for mx type racing. Not to say you can't get both in there for trailriding, just the powercurve changes with each different cam change. When you install the intake cam alone, you will notice a better mid to top range with no bottom end loss. A better exhaust and filter should be the first thing you do before this. You don't need to but can install the cam without getting the pipe and filter and get better torque. As for rejetting, as long as its stage one its only minor adjusting.

This is the Intake cam and these are sold individually.

for your yamaha i wouldn't suggest just changing 1 cam with an aftermarket one. If you are going to replace the cams, replace both intake and exhaust cams.

The intake cam always has the most power gains, because of duration, lift and other factors that allow more of the fuel air mixture to enter the motor. (be careful if advancing the timing, because timing can be advanced all the way to the point of detonation)

No special lube is included.

That all depends on how off your valves are.