Stick Coils

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BillWest
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Stick Coils

Post by BillWest » Tue May 15, 2018 8:53 am

Most modern bikes these days use so-called "stick coils" as part of their ignition circuit, doing away with the more standard coils, spark plug leads and spark plug caps.

Stick Coils are a component of the modern engine. Their function is to change low voltage to high voltage electric current transferred to the sparkplug.
Stick coils are installed on top of the sparkplug, and the purpose is to reduce lost voltage between conventional ignition coils and those sparkplugs.

In 1996, DENSO developed the automotive industry’s first compact stick-type ignition coil. The space-saving design, since adopted by many of the world’s leading automakers, requires no high-tension ignition cable, fitting neatly into the engine’s spark plug bore.

Features:

- Improved coil efficiency reduces the need to generate high voltage
- Newly developed small-size driving circuit is integrated into top of coil
- Cylindrical ignition coil eliminates the need for ignition wires
- Small size, light weight, and smooth appearance on top of the engine head cover.

Benefits:

- Small in size, light in weight and easy to install
- Eliminates phantom misfires
- Maximum available voltage under all operating conditions
- Energy saving, as improving the coil’s magnetic efficiency reduces the time needed to generate high voltage for the ignition coil.


I am in the process of converting my ZRX from using conventional coils and plug leads, to using stick coils.

More to follow.
Married men should remember, they can be right, or they can be happy.

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BillWest
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Re: Stick Coils

Post by BillWest » Tue May 15, 2018 12:40 pm

I know, the bike needs a wash.
Coils.jpg
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OEM.jpg
OEM stuff removed
OEM.jpg (114.93 KiB) Viewed 533 times
Married men should remember, they can be right, or they can be happy.

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BillWest
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Re: Stick Coils

Post by BillWest » Tue May 15, 2018 12:50 pm

New stuff:
NewWiring.jpg
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Fitted.jpg
Fitted.jpg (137.38 KiB) Viewed 533 times
Left.jpg
Left.jpg (188.55 KiB) Viewed 533 times
Right.jpg
Right.jpg (190.07 KiB) Viewed 533 times
Job done.
Put everything back together, started it up, and it has a nicer idle to begin with.
Runs well, and is very responsive.

Coils: $48 USD incl postage (eBay, off a GTR1400 '08).
Harness: $50 plus postage.


Boxer will now tell us that he bought similar coils for many $$, but that they came with his GTR1400.
Married men should remember, they can be right, or they can be happy.

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BillWest
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Posts: 3422
Joined: Tue May 10, 2005 8:14 pm
Location: Would still prefer the Greek Islands....

Re: Stick Coils

Post by BillWest » Fri Jun 29, 2018 2:28 pm

The ZZR1200 Kawasaki now has had a coil transplant.

Out came the standard coils and leads.
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IMG_3394.JPG
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In went the stick coils.
.
IMG_3395.JPG
IMG_3395.JPG (172.04 KiB) Viewed 353 times
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Tidied up:
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IMG_3396.JPG
IMG_3396.JPG (191.62 KiB) Viewed 353 times
.

They are 2008 Kawasaki Ninja ZX10R stick coils, US $53.77 with postage, delivered to Oz.
With the relevant wiring harness, all works well.
Married men should remember, they can be right, or they can be happy.

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