Which spark plugs to get?

I am going to change the spark plugs on my 1999 sv650s. what are the best ones to buy, and any tips or shortcuts before I start.
THANKS.

Bog standard normal ones will suffice , I have not met one person yet that said any of these Iridium ones made a huge and noticeable difference , of course somebody will now come in and "Fight the Corner" for justifying why they spent £25 on 2 plugs instead of around £8 for 2 NGK ones . I`m from the "If it aint broke then don`t fix it" School when it comes to basics on bikes . Welcome to the site by the way

[Dave20046]

NGK Cr8E if I recall correctly, I've had a few NGKs fail so get denso's if I can (they have a different code though, i.e not cr8e). Never tried irridium, I doubt performance but if longevity's any better (& guaranteed), I'm all for changing my plugs less often!

Suzuki manual states NGK CR8E or Denso blah blah.

Haynes says the same, but recommends NGKCR9E or Denso U27ESR-N for extended high speed riding.

Tips - Despite the tool kit that comes with the bike not being perfect, the spark plug tool in mine was very useful for removing the plugs.

[Dave20046]

Originally Posted by boot

Haynes says the same, but recommends NGKCR9E or Denso U27ESR-N for extended high speed riding.
.

That's interesting, what constitutes as extended high speed riding I wonder? Would that be your motorway commuters (i.e sat at a decent pace for a long period of time) or sun-fun riders (0>fast>faster)?
...or both?

In the same breath I had a pair of Denso plugs fail on me on my SV on the Wirral Egg Run this year , IF they had been OEM ones then they would have done 20k , IF they were done on a Service interval and changed when I bought them then they would have done at least 13k in my ownership ......... Manual recommends a change of plugs every 7k for the pointy so imagine it would be the same for a Curvy as well . I lobbed a pair of normal NGK plugs in and have been more than happy that they go Pop and Bang everytime they are needed to .

Originally Posted by Dave20046

That's interesting, what constitutes as extended high speed riding I wonder? Would that be your motorway commuters or sun-fun riders? (or both?)

Track days , Minitwins racers etc .

I use Denso plugs, NGK ones dont tend to last as long for me. Iridium ones are supposed to last longer and give a stroger spark, whether they do or not I have no idea

[Dave20046]

Sorry you're complaining they failed after 13-20k?
I do my plugs atleast every 6k (however granted badger it ain't my main form of transport anymore)

Originally Posted by Dave20046

Sorry you're complaining they failed after 13-20k?
I do my plugs atleast every 6k (however granted badger it ain't my main form of transport anymore)

Did I say I was complaining ?

I stated that they failed because they were well and truly out of their change time , so if you stick to this schedule then ANY plug will be fine .