Montesa COTA 4RT 260 2023, Owner'S Manual

Page: 84 / 180

Engine servicing
4-21 4-21
(1) CAM CHAIN
(2) CAMSHAFT
(1) SIDE CAP
(2) DOWEL PINS
Disconnect the crankcase breather hose.
Remove the two 6 mm bolts.
Loosen the eight cylinder head cover SH bolts in crisscross
pattern in 2 or 3 steps.
Remove the bolts and four sealing washers.
Remove the cylinder head cover assembly.
Remove the dowel pins.
Remove the cylinder head side cap.
Remove the camshaft bearing retainer from the cylinder
head cover.
(1) BOLTS/SEALING WASHERS (2) SH BOLTS
(3) SEALING WASHERS (4) CYLINDER HEAD COVER
(1) BOLTS
(2) TAPPET ADJUSTING HOLE COVER
Remove the bolts and tappet adjusting hole covers.
Make sure the piston at TDC (Top Dead Center) on the
compression stroke by moving the rocker arms.
Remove the cam chain from the cam sprocket and
suspend the cam chain with a piece of wire to prevent it
from falling into the crankcase.
Remove the camshaft assembly.
2
1 1
4
3
3
2
1
1
2
1
2
2
1