Coil upgrade

Can someone quickly tell me what these coils do and why it works much better with coils from CBR bikes ?

I found that it cuts out weak points in the ignition system,  such as the plug caps and HT leads. These have been the cause of many woes on these bikes.
They are a lighter and a neater set up, oh, and they give a stronger more reliable spark at the plug. Especially at higher revs where the originals struggle as they age. (Don't we all).

Now have some available.

 i actually did it! (considering ive never done this sorta job before) and it starts so far, just gotta smoothen things up like patch up the gaping space in the plug hole

small update but the upgrade's fixed my starting issues as well! it used to take three presses of the starter to get it started sometimes wuth a bit of throttle applied as well but now it doesnt even take a whole press and it fires up straight away. im im guessin it is one of the old parts that git replaced that was o its last legs and why the starter brushes were ground to fuck when i iirst got the bike so cheers for that andy!

Hi Andy, PM sent

fitted stick coils today, though just to try them out so nothing is permanently connected at the moment, and bike fired up straight away  The mounts on the connector side of the coils are broken and rusted and the connectors themselves are covered in corrosion so no wonder I have had starting issues, especially on the right side. I am just waiting for a new set of crimping pliers to arrive as mine are meant for insulated connectors.

 it is probably one of the easiest and most beneficial mods you can make Chris.

https://www.electrosport.com/collections/connectorsç

also aliexpress....

Current cb500 continues with the 'traditional' coil

Does anyone have any idea of ​​a particular cap to make airtight at the top due to the difference in diameter between coil and hole?

I cut the cover off the original caps and put them on the sticks. works absolutely fine

thanks !

connectors

https://es.aliexpress.com/item/33035965009.html?spm=a2g0s.9042311.0.0.4c6f63c04kqwYl

seadoo cover rubber boot are ok but expensive.......

burudi wrote:Does anyone have any idea of ​​a particular cap to make airtight at the top due to the difference in diameter between coil and hole?

I had a pair made in a local shop that sells all things rubber. I think they were 3mm thick and made with this kind of tool  https://toolguyd.com/hollow-punch-set-for-rubber-washers-gaskets/

I don't remember if I paid 1 eur for a piece or for the pair. Anyway money well spent and a happy customer.

One DIY option might be to wrap several rounds of vulcanising silicone tape to the coils on suitable location to make them thicker. Obviously with this approach the plug will not be at the very top of the hole. Regular tape with glue (like electrical tape) typically cannot tolerate high temperatures, so that might not work.

BR,
Antti

A quick shout to Beresford, you have PM.

You can wire them up to the existing loom, it shouldn't be a problem. I wire them with the common wire to the left as you look down on the new coils in the cylinder head. You may need to unravel some of the tape to get enough play in the wire but otherwise it's pretty straightforward Mike.

I think it is also interesting to cover the new wiring with thermo shrink tube. Also,when put a new male terminal, always with external plastic insulator cover on this new. Looking for, there are those that even hug on the already existing female terminal of origin.On sale in electronic parts stores, for example.

My solution to the space between coil and cylinder head cover is an oil seal 20-48-10. Fits perfectly on the outside of the hole. Preferably double lip to be possible. See images

I don't How to upload images......

https://www.dropbox.com/home?preview=STICKCOIL.jpeg

Hi guys, I'm quite eager to try the change to stick coils, as I would buy them second hand from what model of bike is best? Also are there suitably cheap new ones available?
Thanks, Dave.