Clutch wont engage after swapping master cylinder

After replacing the master cylinder, and clutch lever on my 07 vfr, the clutch will not engage at all.

Its worth mentioning that the clutch would engage previously, so I put the old cylinder back on and it is having the same issues..

Anyone have any idea what might be the issue?

 

You've got an air bubble somewhere, most likely right at the master cylinder rod. I've used a very small
piece of wire to wiggle in the return hole and got the bubble out. Also you can sometimes, very carefully,
crack the banjo bolt coming off the master cylinder, work the lever and get the air out.

 

You have to "reverse bleed" these VFR clutches to get rid of that bubble, by which I mean feeding in brake fluid frondown at the slave cylinder port. That's how I always end up having to finish the job.

 

You need to fill and close up your master cylinder, then remove it from the handle bar and position it so the banjo is the lower point.
Now give it a good shake and press the leaver rapidly while shaking.
It is the only way it has ever worked for me.

 

Think you will need to re bleed the system. A good point for getting a bubble is at the handlebar banjo. I usually remove from bar and hold so the banjo is at the lowest point.

 

air travels to the highest point, so why hold the banjo low ??

 

Because air travels to the highest point.
You don't want air in the banjo, you want it out of there.

 

When I bled the clutch on my 99, I kept doing the correct procedure over and over, but it wasn't improving. By accident I bumped the clutch lever when I was adding fluid I noticed air bubbles came up into the reservoir. So, just kept lightly, very slightly squeezing the lever over and over and a lot of air came out. In no time at all I had a firm clutch lever and everything was working great!!!

I don't know if this will happen for you, but check it out.

 

I've had the same experience when replacing a master cylinder (with brake lines still full), I refilled the master and just twitched the lever repeatedly and watched all of the air burp out of the piston area.