Inspecting Ywheel Magnetic Force; Replacing Ywheel And Key - Yamabiko ECHO PB-2520 Service Manual

26
4-10 Inspecting fl ywheel magnetic force
A
4-11 Replacing fl ywheel and key
IGNITION SYSTEM
1. Inspect magnetic force of ywheel (A) using ux
meter, or bridging with a screwdriver (B) as shown.
2. If magnetic force is weak, replace ywheel refer-
ring to "4-11 Replacing ywheel and key".
B
1. Referring to "4-5 Replacing ignition module", re-
move engine assembly from inner fan case.
A
2. Remove spark plug cap and clean dirt around
spark plug. Remove spark plug.
3. Insert clean rope (A) in spark plug hole ad-
equately to stop crankshaft rotation.
NOTE: Do not insert rope end to avoid bite by pis-
ton and cylinder.
NOTE: Do not use piston stopper to avoid piston
damage.
4. Remove nut (B) counterclockwise with plug
wrench.
B
PB-2520
EB252