Valve Clearance Adjustment - Sym Fiddle III 50 Service Manual

6. CYLINDER HEAD/VALVE
Apply with oil onto the thread of cylinder
head bolts and tighten the bolts in
diagonally for 2-3 sequences.
Do not over tightening the bolts to avoid
the cylinder head deformation, noise
created or leaking so that effects
motorcycle's performance.
Install the cam shaft. Place the TDC marks
of the cam sprocket at same level of the
top-end of cylinder head. The other single
hole of the cam sprocket is in upward. Then,
install the cam chain onto the cam sprocket.
Tighten the 2 bolts of the cam sprocket.
Install the cylinder head side cover.
Turn the cam chain adjuster in clockwise
motion so that the adjuster is pushed out to
contact the cam chain plate tightly. Tighten
the bolt cap of the adjuster adjustment hole.
Caution
The O-ring must be installed into glove.

VALVE CLEARANCE ADJUSTMENT

Loosen valve clearance adjustment nuts and
bolts located on valve rocker arm.
Measure and adjust valve clearance with
feeler gauge.
After valve clearance had been adjusted to
standard value, hold adjustment bolt and
then tighten the adjustment nut.
Standard Value: IN/EX 0.05± ± ± ± 0.02mm
6-14
"T" mark
Especial tool
SYM
Bolts ×2
chain adjuster