Remove air filter.
Remove cylinder head cover.
Remove spark plugs.
Rotate the crankshaft and remove the right camshaft rocker arms.
Remove chain tensioner or chain tensioner spring (section 3.10.1).
Turn the crankshaft to the TDC of the piston of the first cylinder, the marks on the camshafts and the camshaft housing must match.
Close the opening under the chain with a clean cloth.
Cut off the heads of the axles of one link of the chain with a cleaning machine without separating the chain.
Attach the lock link of the new chain to the old chain, at the same time removing the link with the cut off heads of the axles, as shown in fig. 87.
Pic. 87. Connecting a new drive chain to an old one.
Install a size 27 socket wrench with a ratchet over the head of the crankshaft pulley center bolt.
Slowly rotate the crankshaft in the direction of travel until the locking link appears on the camshaft sprocket.
Disconnect the old chain, connect the new chain with a locking link, placing it on the inside, as shown in fig. 88, install the second plate and lock. The cut on the lock should be directed in the direction opposite to the direction of movement (see fig. 89).
Pic. 88. Installing the lock link on a new chain.
Pic. 89. The position of the lock of the lock link on the drive chain.
Turn the crankshaft until the piston of the first cylinder is at TDC and check the position of the marks on the camshafts and the camshaft housing, as shown in Fig. 90.
Pic. 90. Marks on the camshaft.
Install chain tensioner (section 3.10.1).
Perform the rest of the work in reverse order.