Replacing shims on valves.

Today I made valve clearance measurements. My results:
Exhaust cylinders : #1. 0.13~0.15 (doesnt fit 0.15)
#2. 0.13~0.15 (ditto)
#3. 0.13~0.15 (ditto)
#4. 0.10~0.13 (doesnt fit 0.13)
Intake cylinders: #1. .08~.10 (doesnt fit 0.10)
#2. .13~.15 (doesnt fit .15)
#3. .13~.15 (ditto)
#4. .08~.10 (doesnt fit .10)

I know that I will have to replace all the shims. There a very helpful chart on this forum: http://xjbikes.com/Forums/viewtopic/t=14827.html , my problem is that I do not know how to take these shims out. It is stated in the service manual that "a special tool, the yamaha part No. 90890-01245 Valve adjusting tool is necessary for thi procedure". Can anyone lead me to a link where I can order this tool?

In addition, is it ok to leave the engine outside (covered though) without its top cover with the chain and valves are exposed? or should i re-install the cover and wait for the tool and shims to arrive?

 

http://www.powersportparts.net/ProductD ... de=57-8020

 

as for leaving out, i guess depends on where you live, but i personaly would say you would be ok as long as you cover up the valves good with a shop rag that is lint free and cover the bike completely up, but if your in a area of bad weather and storms and wind and such, then thats a risk your willing to take to kill a entire motor to put the 15 mins of extra work to put it back together temp?

 

http://cgi.ebay.com/ebaymotors/Motion-P ... ccessories

 

You need either the shim removal tool, available through Len Chacal at XJ4Ever, or use the zip-tie method described in this site (you'll have to do a search for the recent threads).

A pair of hemistats will help immensely but it is possible to lift them out with out them.

I always put the cover back in place and held down with two of the bolts just finger tight until the correct shims arrive.

Dave

 

"Zip-tie trick" (alternatives to the tool, anyway) is here: http://xjbikes.com/Forums/viewtopic/t=29209.html

And if those are metric measurements, intakes #2 and #3 are OK (spec is .11~.15mm, and they're at .13mm, right?) So they're OK.

All of your exhausts are tight. So you're looking at 6 of the 8.

I would DEFINITELY PUT THE COVER BACK ON, and snug the screws even. It doesn't take much in the way of dirt/grit to wreck an engine; don't leave the "patient" with its guts exposed, especially if it's outside.

If you plan to use the tool, you'll need it to determine which shims you need. You can't decide what replacement shims you need to order until you remove and "read" the currently installed ones.

 

I agree with putting the cover back on. It's got to wait someplace, it might as well be in its home. Only takes a few minutes.

 

and with the gen-u-ine tool they're (we are too) pretty effin serious about not rotating the cams into the tool.

I prefer zip ties.

 

Maybe not once you have the numbers off the already installed shims they may work on some of the others so as Fitz said you have 6 of the 8 out of spec you may only need to purchase 3 or 4 once you swap them around use the zip tie and get it done. Its time to ride!!!!!

 

Seriously... I had 8 out of spec, and only needed 2 shims. Many Yamaha dealers will swap shims if you ask. Also, if you ask nicely.... someone on here probably has the size you need lying around.

 

When you have everything sorted-out, ... write-down the Number of the Shims that you are installing and Chart them.

Knowing what Shim you have for every Valve will make Adjusting the Valves a little bit easier next time.

Be sure the Tool you use FITS.
I have a Motion Pro Shim Tool that does not work on my 750; but does the job on the 900.

(Still trying to figure that one out!!!)