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Hey Guys/Gals,

Just joined the forum and had a question. In the middle of doing a valve adjustment and had some weird findings.

every valve on the exhaust came out within specs. every valve on the intake is within specs except 2. both intake valves on cylinder 1 were tighter than .04.

Why would just those two valves be outta wack? and that extreme?

Thanks

1996 CBR 600f3
 

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Its because the f3 as well as the f2 has a vacuum nipple on cylinder one and by your findings a would say that that vacuum nipple isnt plugged as it should be and the results of this is that that cylinder would be running lean and hotter than the other 3 cylinders . . .
 
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