Dyna coils?

BenR · World Chat Champion Joined: 23 Jun 2008 Karma :

Hi years ago I used to collect street fighters magazine & nearly every bike in it was fitted with dyna coils. I was just wondering if anyone could give me a bit more info? pros/cons, advantages/disadvantages & where to buy them from? Cheers in advance.

Fisty · Super Spammer Joined: 11 Apr 2007 Karma :

Had a pair on the TL. They made no difference.
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Triton Thrasher · Could Be A Chat Bot Joined: 16 Oct 2012 Karma :

Is there a problem with your bike’s running, which you attribute to the present coils?
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BenR · World Chat Champion Joined: 23 Jun 2008 Karma :

redeem ouzzer · World Chat Champion Joined: 06 Oct 2015 Karma :

On oil cooled GSXR’s etc they are a vast improvement, but unless you have a specific fault then there’s no real need.
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sickpup · Old Timer Joined: 21 Apr 2004 Karma :

stevo as b4 · World Chat Champion Joined: 17 Jul 2003 Karma :

I was thinking about an aftermarket performance coil for my KMX once I'd fitted the programmable CDI, but it was me being a tart and there is no real benefit to trying to make a non std coil fit, especially as it already has a new OEM coil fitted.

I'd say on a 2stroke save the money for a new CDI if your tuning it instead.

BenR · World Chat Champion Joined: 23 Jun 2008 Karma :

temeluchus · World Chat Champion Joined: 01 Oct 2008 Karma :

I can anecdotally say I've had marginally easier starting with them.

You can also use them to fit car type graphite HT leads. I've done so on a couple of bikes as these don't rot out as easily as the copper ones you find on bikes.
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jjdugen · World Chat Champion Joined: 03 Jun 2011 Karma :

Only coils I have come across that actually failed, two separate bikes, a Dyna coil burnt out on each.
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stevo as b4 · World Chat Champion Joined: 17 Jul 2003 Karma :

Do we think this is down to American quality and hype over a part that was never a problem (usually Japanese made)?

Or is it because people have historically been fitting these supposed wonder coils that have quite different primary resistance values to the std coils?

BenR · World Chat Champion Joined: 23 Jun 2008 Karma :

Thanks for the replies it looks like the general consensus is to not bother so I'll stick to the standard type. Thumbs Up

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