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Coils

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Oggers
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Posts: 78
Joined: 9th Jun 2020
Location: Aberdeenshire

Coils

#1 PostAuthor: Oggers » Fri Aug 21, 2020 8:32 am

Chaps

On the z650 I have Accel coils- yellow cylindrical things. They each have the two connectors for the plug leads and two wires for the points and something else - I forget what.....They also have what seems to be an earth - a small black wire - which connects directly to the frame via the coil mounting bolt.

Out of curiosity, is my assumption that this small balck wire an earth correct, and why is it needed? I thought coils earthed through the points?
1946 Ariel VB600, 1966 Triumph Bonneville, 1975 400/4, 1979 Z650
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lude
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Posts: 56
Joined: 6th Nov 2011
Location: Sunny South Coast

Re: Coils

#2 PostAuthor: lude » Fri Aug 21, 2020 9:47 am

Some sort of earthing suppression?
Wiring diag says earthing is through points for primary coil, secondary coil earthing through the engine via sparkplug.
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