Fig. 18 - Makita EH5000W Technical Information

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -6. Ignition
MAINTENANCE
Plug Cap
(1) Remove Plug cap from Spark plug and check the resistance between Plug cap spring and Ignition coil with circuit
tester (Fig. 18).

Fig. 18

Grounding terminal
of Ignition coil
If the Circuit tester shows 2.0+- 0.5 kΩ,
the connection is in order.
(2) Check the connection of Plug cap spring with Ignition cable if Pointer of Circuit tester does not move or
does not steadily indicate 2.0 +- 0.5 kΩ.
Spray lubricant into the Plug cap and pull out Plug cap spring together with Ignition cable (Fig. 19).
Fig. 19
(3) Check Plug cap if there is any crack, damage or disconnection. Re-fix them or replace the damaged one
with the new one if there is any disorder.
(4) Stick a Plug cap spring end into the center of Ignition cable and put them back into Plug cap while holding
Plug cap spring with pliers.
(5) Incomplete connection of Plug cap spring with Ignition cable causes the feeble sparking or no sparking from
Spark plug. Check the connection by taking the same procedure of (1) to (4).
Plug cap spring
Ignition
cable
Plug cap
P 9/ 26
Spark plug
Plug cap
Circuit tester