Ignition System - Makita PM7650H Technical Information

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[4] DISASSEMBLY/ASSEMBLY

[4]-10. Ignition system

CHECKING PLUG CAP
(1) Remove Plug cap from Spark plug, then check the continuity between Plug cap spring and the ground (earth) terminal
of Ignition coil with a circuit tester. (Fig. 40)
(2) If there is no or intermittent continuity, check the continuity between Ignition cable and Plug cap spring by following
the procedure described below.
1 Apply spray lubricant in Plug cap, then using small pliers, pull out Plug cap spring together with Ignition cable
from Plug cap. (Fig. 41)
2 Check if Plug cap spring is properly connected to Ignition cable. If not, connect them properly.
Also check Plug cap for any crack. If Plug cap is cracked, replace it with new one.
3
Insert Plug cap spring in the center of Ignition cable. Then using small pliers, put them back into Plug cap
while taking care not to disconnect Plug cap spring from Ignition cable.
4 Make sure that Plug cap spring is firmly connected to Ignition cable by doing the same as you did in step 1).
Note: Poor electrical continuity between Plug spring cap and Ignition cable will result in no or weak spark.
Fig. 40
Plug cap
Spark plug
ground (earth) terminal
Ignition cable
Fig. 41
Ignition coil
Ignition coil
P 14/26
small pliers