Valve clearence XJ700X

If you need to set up the clearance on an "out of spec" one, look to go near the maximum clearance on the spec.
That way as they wear, and when the clearances get tighter, you'll have a little more buffer before they have no clearance and cause loss of compression and burnt valves.

Tony

 

Thanks Tony! That was my initial thought, to get closer to the max tolerance for that reason but wasn't sure if that was a good thing to do.

 

One other tip: measure the old and new shims with a micrometer, don't assume that the numbers are right.

 

+1 on measuring the shims.

 

Work never ends I have micrometer, but how do measure them? I have to measure from where the valve seats to the top of the shim, correct?

 

we do have members here who have the X.
you may also want to check this site
http://www.maxim-x.com/


this page
http://www.maxim-x.com/notes.html

 

You measure the thickness of the shim, flat to flat.

 

I have the under bucket shims, would I measure them tge same?

 

You will need something like this, but it will have to fit inside the cap to determine the thickens. Still flat to flat but you will have to avoid the cap portion. The pic is just an example of what you can use.

 

That's what I'm having a problem with, micrometer is too big to fit inside of the shim.

 

You can get a small screw or something that will fit into the bottom of it. That screw or what ever you use will be a constant measurement. Use that part to measure all the shims and it should work out. Even a carb float pin or something similar to fit in there. Just use the same thing for each shim.

Hope that helps.

 

yes measure total height for over bucket shims


for the x shims I think you need a spacer like in the photo below or a ball bearing
after seeing the shims on the x web site they are marked just like over bucket shims

 

or like this the spacer shown is like a bolt with shaft cut down (but not a bolt) to insert inside a ball bearing can be used

you could measure a known size and subtract the excess 0r shim thickness to give you the number

 

Awesome guys! Thank you for all your help! As you can probably tell, I have never done something like this. I really appreciate all the help.

 

Brag, brag, brag...

 

@xHondaHack

would be able to give you better info

 

With the micrometer that I have, it required a small screw to get inside the cup, (to sit on the underside of the shim where it rests on top of the valve) and you likely have to do the same to get the proper measurement.

After snugging it down on the screw, that's where I set the "0" setting on the micrometer. Then you'll have the proper measurement on the shim. Some may be a thousandth or two off of the markings, but some markings may have worn off over time as well. You can use a very fine permanent marker in that case so you can mark and organize what you have, then use the chart for the shims you will need.

I know it's a pain to do twice, but I always recheck them after doing the initial swap.

Also, mark down all the shim sizes for each valve position after your done, that way you'll have a reference of what shim is on each one for the next time, or if you sell the bike the next owner will appreciate having that info.

Tony

 

This is exactly what I did and a good thing too! One of my exhaust shims state 195 on it but is actually a 192, would have put me real lost to being out of spec. It was just the one though all other 19 were good