VZ800 aftermarket coils

Anyone run anything better than OEM coils on theirs?? Let me know what works or just stick with OEM

Is there an advantage on these bikes?

Probably not .... as there is only a nominal advantage (Not really tangible in the riding experience) on sports bikes !


As long as they are functioning correctly - the standard coils are adequate ! (IMHO)


Money/time is probably better spent elsewhere.

I thought that the newer type or performance related coils were often fitted by some people that owned older bikes that were looking for every bit of gain available, not so much on the newer types of bikes

Yep,

But all you are buying on 'older' bikes is something with theoretically better reliability (I.e. electrical reliability). Manufacturers may harp on about potential gains in combustion efficiency - & in theory a hi energy coil should allow you to run a greater spark gap, which could lead to enhanced combustion efficiency.

This will not yield a significant gain in BHP ... but may give a crisper throttle response - which thinking about it, could be tangible in the riding experience (Especially on a cruiser). .... So I will eat my words on that

If you can get a high energy coil to run on wider plug gaps you should see a slight increase in MPG .... but again these increases are small.

I'm not saying don't use them - but I would not swap serviceable coils for 'high energy' coils as a first option on the 'improvements' ladder. I'd wait till one of my standard coils was packing in then uprate both coils. Obviously if you have an unlimited budget - then stick 'em on whenever you feel like it !

Otherwise - if on a more modest budget - it seems logical to free up the exhaust first, then look at the induction.

The bike doesn't have to be that old I've put a set of Dyna coils and carbon core Taylor leads on my 99 Blade... You sure get a fatter spark, what that equates to BHP wise (if any at all)is a secondary to kudos of the shiny green coils...Pity they are hidden under the tank

Hi Graeme,

I was just wondering (from personal curiosity point of view) - Do Dyna recommend running a wider plug gap on your Blade to get the most out of that nice juicy fat spark ? ..... if not - it could be worth experimenting to maximise on your investment.

I'm sure the kudos factor is significant in the user enjoyment of such mods .... not knocking it - just that I'd change things in a different order.

The trouble is with mods - is that if you are expecting a big difference - then you probably bought the wrong bike in the first place, but if it is just 'tweaking' to suit your personal tastes, then it becomes an individual choice.

My comments were aimed a someone looking at what they might change first on a cruiser, & I think exhaust, then induction is the sensible ( & common) route.

Hi Yam, I get where you coming from re the mod route and tweaking.. I have used  Dyna or Accel coils on a few bikes. I have the gap set at .032 (in old money)... Lots of little mods make a big difference to the right bike.. I agree that an 800 twin cruiser is not a good starting point for a performance bike

Hi Graeme,

Is that a slightly wider gap than standard ? ... as it is a decent gap - but one which a modern ignition system should cope with.

I too have tinkered with such bits on other bikes/vehicles. I seem to be getting a bit more reflective & conservative in my approach to the Suzi 800 engine. But remain open minded on it !

I appreciate both you and DaNgEr are running proper, significantly, modded bikes and the kudos of non-standard parts suits that type of machine ... I'm just running a barely modified road-rat ! (Mature & more or less standard bike).


 Yam

Hi Yam its a standard gap... Have went higher when fitting hot cams, better filters, jet kits etc, its the fat spark and better burn to aim for....Sorry DaNgEr.. didnt need to steal your thread...oops

I think that if like me a guy will do what ever they can to allow the bike to run as it wants to then it's a mod worth doing.

Mr Intruder wrote:

I think that if like me a guy will do what ever they can to allow the bike to run as it wants to then it's a mod worth doing.

:cmate: Couldn't have put it better.....