Honda CBR900RR (1996-1998) [173/407] Valve guide replacement

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CYLINDER HEAD VALVES VALVE GUIDE REPLACEMENT Chill the replacement valve guides in the freezer section of a refrigerator for about an hour Heat the cylinder head to 100 150 C 212 300 F with a hot plate or oven WARNING To avoid burns wear heavy gloves when handling rhe heated cylin der head CAUTION Do not use a torch to heat the evulinder head it mav cause warping Support the cylinder head and drive out the valve guides from combustion chamber side of the cylinder head 2 DEPTH TOOL Valve guide driver 4 5 mm 07HMD ML00101 Adjust the tool selling depth with a pair of vernier calipers as shown DEPTH IN 14 60 14 80 mm 0 575 0 583 in EX 14 80 15 00 mm 0 583 0 591 in TOOL Adjustable valve guide driver 07743 0020000 Not available in U S A Drive in the guide from the top of the head Let the cylinder head cool to room temperature U S A only Use the same valve guide driver that was used for removal and follow these steps Mark the guide with a line at the correct height as speci fied in the Service Manual Chill the guides Drive in the valve guide to the line Check the projection height with calipers to verify the guides are within specification Ream the new valve guide after installation Insert the reamer from the combustion chamber side of the head and also always rotate the reamer clockwise TOOL Valve guide reamer 4 5 mm 07HMH ML00101 or 07HMH ML0010A U5 A only NOTE_______________________________ Use cutting oil on the reamer during this operation Clean the cylinder head thoroughly to remove any metal parti cles Reface the valve seat see next page 1 ADJUSTABLE VALVE GUIDE DRIVER

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