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Message started by stewmills on 07/17/16 at 09:02:19

Title: Spark Plugs
Post by stewmills on 07/17/16 at 09:02:19

Was going to get a new plug, and I can't get this link to work. Tried a quick search and can't put my hands on the info either.
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1107534689

Anyone have the short list of plugs that are recommended for us?
Thanks!

Title: Re: Spark Plugs
Post by justin_o_guy2 on 07/17/16 at 09:28:25

Clean up the cavity.

Title: Re: Spark Plugs
Post by Dave on 07/17/16 at 12:42:43

I don't have the full list - here is what I use.

For the standard plug....NGK DPR8EA-9

The Iridium version.....NGK DPR8EIX-9

The Iridium most likely doesn't make any more HP - but is likely to last longer as the electrodes don't wear/erode as quickly.

Title: Re: Spark Plugs
Post by stewmills on 07/17/16 at 12:55:43

That'll work. Thanks!

JOG, I promise to clean it out first ;)

Title: Re: Spark Plugs
Post by justin_o_guy2 on 07/17/16 at 13:21:33

Booooy, you Better! I'll come up there and
Put the Boot to Y a!

Title: Re: Spark Plugs
Post by Kris01 on 07/17/16 at 20:40:58

I can't get the link to work either!

Title: Re: Spark Plugs
Post by stewmills on 07/18/16 at 06:53:27

Thanks Kris! I was just about to ask about gapping.

Title: Re: Spark Plugs
Post by stewmills on 07/18/16 at 12:52:38

Dave, this bike better take off like a top fuel dragster with the new iridium plug! I had to hit 4 auto parts stores before finding this thing in stock. Seriously! Don't think am super nutso, I live in a rather condensed area with probably 10+ stores within a 5 mile radius so it wasn't a big deal...but I wanted what I wanted :o

Title: Re: Spark Plugs
Post by Dave on 07/18/16 at 12:55:29

Well.....next time you need one, you know which auto parts store to try - first!

Title: Re: Spark Plugs
Post by Kris01 on 07/18/16 at 18:06:57

I don't believe in supposed "high performance" plugs. Copper is a great conductor and is the standard plug. I stick with it. Besides, they're cheaper.

Title: Re: Spark Plugs
Post by Dave on 07/18/16 at 19:32:57

The Iridium doesn't promise any performance gains - but the electrodes don't wear away.....and they last just about forever. I have taken them out of my fuel injected cars at 80,000 miles....and they look just like the new ones.

The Iridium plug is a better plug than the less expensive standard one...but the standard one does work fine.

Title: Re: Spark Plugs
Post by Kris01 on 07/18/16 at 20:02:09

Dave, any idea about why the link isn't working?

Title: Re: Spark Plugs
Post by Kris01 on 07/18/16 at 20:06:30

Some info:

http://www.carsdirect.com/car-repair/copper-spark-plugs-vs-iridium-and-platinum-understand-for-top-performance
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2583605
http://mechanics.stackexchange.com/questions/2013/what-is-the-difference-between-normal-platinum-iridium-plugs

Title: Re: Spark Plugs
Post by Dave on 07/19/16 at 04:03:03

0E372C367574450 wrote:

Kris:

It could be that Platinum and Iridium aren't as good as Copper plugs for conductivity....maybe the modern pointless, distributorless electronic systems don't really care as they produce plenty of spark. The old points/condenser, distributor, long spaghetti spark systems might do better with the copper.

The links you posted seem like most oil threads.....lots of opinion and no testing results. I really don't think the Savage really cares which plug you use.

We will run Stewmills around TN/NC this Saturday and see if he notices any ups or downs to the change to an Iridium plug.

Title: Re: Spark Plugs
Post by Kris01 on 07/19/16 at 17:47:34

I think you're right. Our engine is just too primitive to care one way or the other.

Title: Re: Spark Plugs
Post by stewmills on 07/19/16 at 19:23:00

New plug is in, but hard to tell yet as I only rode it from the shop up to the house...and I had that vacuum hose crack I fixed at the same time. We'll work it hard this weekend and see how it feels.