Checking The Valves - KTM 350 EXC-F EU 2012 Repair Manual

30/ENGINE - WORK ON THE INDIVIDUAL PARTS

Checking the valves

20.21
–
Pre-tension the valve spring using the special tool.
Valve spring compressor (59029019000) (
Insert for valve spring lever (77229060100) (
–
Remove the valve keys and unload the valve spring.
302711-10
–
Remove the valve spring retainer and valve springs.
–
Pull the valve down out of the valve guide.
–
Remove valve stem seal
Pliers for valve stem seals (77229010000) (
–
Remove valve spring seat
302712-10
–
Mark the valves corresponding to their installation position.
Info
Place the valves in a carton corresponding to their installation position and
label them.
300117-10
–
Check the valve plate for run-out.
Valve - run-out
At the valve plate
» If the measured value does not meet specifications:
–
Change the valve.
200193-10
–
Check sealing seat
Valve - sealing seat width
Intake
Valve - sealing seat width
Exhaust
» If the sealing seat is not centered on the valve seat or deviates from the specifi-
cation:
302809-10
–
Rework the valve seat.
p. 274)
with the special tool.
4
.
5
≤ 0.05 mm (≤ 0.002 in)
on the valve.
A
1.40 mm (0.0551 in)
1.40 mm (0.0551 in)
p. 279)
p. 277)
143