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Discussion Starter · #1 · (Edited)
I'm doing the valves on my 03 R6. I have to order different shims because my exhaust valves are too tight. I was wondering if someone else could confirm this looks right. It just seems that i'm changing a variety of numbers for the same one.

INTAKE (0.13 - 0.20)
1 .152 .178
2 .152 .178
3 .152 .178
4 .152 .152
All centered within specs.


EXHAUST (0.23 - 0.30)
1 .203 .203
2 .178 .178
3 .203 .203
4 .203 .203
Measures too tight, under spec.

EXISTING EXHAUST SHIMS
1 189 190
2 190 192
3 191 196
4 189 191

Im ordering 7 x 185 and using an existing 190 for the 196 valve. I'm using the chart from the 03 service manual. Does this sound right?
 

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Discussion Starter · #3 · (Edited)
You can only order valve shims in .05 increments. When originally installed from the factory, they used .01 increments, but you can only order .05 increments afterwards. So for me to order 185 shims to correct my tight exhaust valves was the right move. I bought my bike at 37,000km and she now has 42,000. The previous owner tells me he didn't drive her to hard, but I dont know what else you would do with a machine like this :). But anyways, it was time to do the adjustment as per the service manual. I also had a hard time sync'in the throttle bodies with #2 loosing vacuum pressure. So thats why I decided to check the valves. I discovered #2 exhaust valves slightly tighter than the rest. I hope this is going to resolve my sync issue. Shims come in on wednesday, i'll let ya know how it turns out.
 
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