Honda AFRICA TWIN XRV750 (1987-2002) [82/291] Engine clutch and transmission 2 33

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Engine clutch and transmission 2 33 14 26b using a deep socket or special tool to press it squarely into place disulphide grease and engine oil then install it into its guide rotating it slowly to avoid damaging the seal see illustrations Check that the valve moves up and down freely in the guide 28 Next Install the inner and outer springs with the closer wound coils facing down into the cylinder head see illustrations Fit the spring retainer with its shouldered side facing down so that it fits into the top of the springs see illustration 29 Compress the valve spring with a spring compressor making sure it is correctly located onto each end of the valve assembly see illustrations 14 5a and b On the underside of the head make sure the plate on the compressor only contacts the valve and not the soft aluminium of the head if the plate is too big for the valve use a spacer between them Do not compress the springs any more than is necessary to slip the collets into place Apply a small amount of grease to the collets to help hold them In place see illustration 14 5c Locate each collet in turn into the groove in the valve stem then carefully release the compressor making sure the collets seat and lock as you do see illustration Check that the collets are securely locked in the retaining groove see illustration 30 Support the cylinder head on blocks so the valves can t contact the workbench top then very gently tap the top of the valve stem with a brass drift This will help seat the collets m the groove If you don t have a brass drift fit the shim into its recess In the top of the 14 28c then fit the spring retainer 14 27a Lubricate the stem valve spring retainer and use a soft faced hammer and a piece of wood as an interface HAYNES Check for proper sealing of the valves by pouring a small amount of solvent into each of the valve ports If the solvent leaks past any valve into the combustion chamber area the valve grinding operation on that valve should be repeated 31 Repeat the procedure for the remaining valves Remember to keep the parts for each valve together and separate from the other valves so they can be reinstalled in the same location After the cylinder head and camshafts have been installed check the valve clearances and adjust as required see Chapter 1 14 28a Fit the inner valve spring 14 29a Make sure both collets lock into the groove as the compressor is released 14 27b and slide the valve into its correct location 15 Cylinder barrels removal inspection and installation Note To remove the cylinder barrels the engine must be removed from the frame Removal 1 Remove the engine from the frame see Section 5 then remove the cylinder head s see Section 12 and the cam chain guide blade s see Section 11 2 On XL600V models if required unscrew the bolt securing the coolant inlet pipe to the cylinder and remove it Discard the O ring as a new one must be used 3 On XL650V and XRV750 models release one of the clips securing the coolant joint collar that connects between the two 14 28b and the outer valve spring 14 29b and remain in place when it is removed