Makita ER2650LH Checking Plug CAP, Checking Spark Plug, Disassembling of Ignition Coil

Repair			P 7/ 14
[4] DISASSEMBLY/ASSEMBLY	Fig. 15
[4]-7. Ignition	Plug cap
CHECKING PLUG CAP
(1) Remove Plug cap from Spark plug and test the continuity			Earth terminal
between Plug cap spring in Plug cap and Earth terminal of
Ignition coil.	Plug cap spring
It is in order when Tester shows 2.0kΩ±0.5kΩ.(Fig. 15)
(2) In case of no continuity or unstable continuity, check the
connection between Plug cap spring and Ignition coil as follows:
(A) Spray the lubricant in Plug cap, then pull out Plug cap spring			Ignition coil
together with Ignition cable using Long-nose pliers. (Fig. 16)
		Fig. 16
(B) In case no connection or inconsistent connection,
check the condition of Plug cap and spring.			Long-nose pliers
Reassemble them or replace them if they are disorder.
			Plug cap spring
(C) Insert the end of Plug cap spring into Ignition cable, then return them
back to the inside of Plug cap carefully so as not to be disconnected.		Plug cap	Ignition cable
(D) Check Plug cap and spring again according to the step of (1) to avoid
poor connection causing the poor sparks of Spark plug.
CHECKING SPARK PLUG
(1) Remove Plug cap with Plug cap spring, then remove Spark plug with Box		Fig. 17
driver 15-17 (standard equipment).
Note: If the electrodes are wet with Fuel, wipe it away with a cloth and		Electrode
dry it by air blow.			0.6 up to 0.7mm
(2) Clean carbon deposits on Electrodes on Insulator tip with a wire brush.
(3) Do fine adjustment of a gap between Side electrode and Center electrode of
Spark plug by inserting 0.7mm Feeler gauge of 1R366. (Fig. 17)
(4) Mount Plug cap with Plug cap spring on Plug terminal and connect			0.7 mm Feeler
Screw part of Plug to a metal part of Engine, then pull Starter rope slowly.
			gauge of 1R366
The sparks can be seen when starter rope is pulled.

(5)When the sparks can not be seen, follow the procedure of

[CHECKING PLUG CAP] to test the continuity. If it has yet to be solved, replace Plug and recheck the ignition through the above process.

DISASSEMBLING OF IGNITION COIL

(1)Remove Cylinder cover and cable from Ignition coil terminal.

(2)Loosen M4x20 Hex socket head bolts (2pcs) and remove Ignition coil from Engine. (Fig. 18)

Note: Do not lose Spacers for heat insulation (2pcs) on the bolts.

ASSEMBLING OF IGNITION COIL

(1)Insert 0.3mm Feeler gauge of 1R366 in between the

magnet portion of Flywheel and Ignition coil. Tighten M4x20 Hex socket head bolts (2pcs) while keeping Ignition coil attached to Flywheel through 0.3mm thickness gauge.

Note: Two M4x20 Hex socket head bolts (Fig. 19) are with threadlocker. Therefore, when re-using them, apply ThreeBond 1342 or Loctite 242 to the threads.

(2)After setting Ignition coil, remove the thickness gauge, then turn Flywheel by hand to check if it turns smoothly without being stuck.

Note: Be sure to insert Spacer on M4x20 Hex socket head bolt when fastening Ignition coil to Engine. (Fig. 18)

(3) Assemble Cylinder cover to Engine.

Fig. 18

M4x20 Hex socket	Spacer (2pcs.)
head bolt (2pcs.)
Tab of Ignition
coil to connect
with Cable
Connector
of Cable

Fig. 19

Clearance between

Flywheel and

Ignition coil: 0.3mm