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Would there be any advantages to going to exotic metal spark plugs such as Autolite Xtreme Sport? Or is it best to stick with what the Vic engineers specified?:confused::confused:
 

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From what I have gathered these bikes run just perfect on the stock plugs. I put some Iridiums in my 2006 Vegas and it could have been me but it didn't seem to run right. I put the stockers back in .. whammy! I was looking into the E3's for a little bit, but figured after doing some reading here and seeing what the tech's advised and prior experience that is wasn't really worth it. I just picked up a lot of 8 stockers for $20 on ebay so those will last a bit!
 

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NGK stock heat range iridiums--irv
 

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Would there be any advantages to going to exotic metal spark plugs such as Autolite Xtreme Sport? Or is it best to stick with what the Vic engineers specified?:confused::confused:
Instead of paying the manufacturer for "hot" plugs, just tune your own... larger spark... complete burn of fuel.
 

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What I use!

Sir,
Use E3 spark plugs. Starts first time every time. Great fuel mileage. Great power! Long lasting!

If you research the so called exotic spark plugs on auto and other motorcycle forums, you will read that there have been many problems associated with those plugs.
 

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Most engines regarless of vehicle run best on stock plugs. That's what they were designed, built and tuned to. Usually, spending more money on fancy plugs results in loss of performance and lighter wallet. I've had customer bring his car into the shop with a nasty misfire and said he's done a full tune up and can't figure out what the problem was. He put some fancy 3 prong plugs in his honda and paid $11 ea for them. After a test drive, it felt to me like it wasn't able to handle a load which had "spark" written all over it. Customer argued with me telling me there was no way and that I was wrong. I pulled them spendy plugs out and put the stock NGKs in and it ran smooth as silk. "better" parts is not always better...
 

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the only reason i went with a fine wire plug was thinking there was
less resistance to fire. i always stay with the ngk's which were oem and the same heat range. nothing to exotic.ran them for over
30000 in my vtx. came standard in my rubicon. no probs.
 

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Lot of the other plugs do not fit in the cavity.
What you might gain one horse power and maybe you get no better mileage.
 

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When I was into high performance 2 stroke wave-runners, we would file the electrodes back and " side gap" the plugs. We did get a bit more power and " punch" on acceleration from a more complete burn but it isn't worth the trouble unless you're racing and looking for that little bit of an edge. The plugs don't last as long and it's a PIA to do.
http://performanceunlimited.com/documents/plugsidegapping.html
 

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Discussion Starter #14
Thanks for all the input guys...you're great. Autolite has a rebate going on now that takes $2 off each $5.99 Iridium Xtreme Sport plug, making them very affordable. But apparently not even worth making the move away from OEM.
 

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i never switch brands from oem, just me i guess.
 
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