Yamaha YTZ250S 1986 Service Manual page 120

3 C.D.I Magneto (Lighting coil) test
Disconnect the mageto lead, and use the
pocket tester to check the resistance of the
magneto coil.
CD
Y/ R lead
Lighting coil resistance:
Yellow/Red-Black: 0.580± 10%
! Replace lighting coil!
o
4 Connectors check-up
1.
Check the connectors and couplers for
looseness of joining ends.
2.
Keep the connectors and couplers from
dirt or rust.
Wrong ! Correct!
connection
5-10