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Discussion Starter #1 (Edited)
So it appears that our 2017+ 650's uses a different spark plug than previous generations. It's a standard (as in non-iridium) NGK MR8E-9, aka # 90527. OEM part number is 09482-00646.

These appear to be available nowhere in the US other than Suzuki dealers, which means they're way overpriced. Can't find any alternatives cross-referenced. Don't even see them on NGK's site.

Anyone find a reasonably-priced source for these? Local auto parts stores can't even find that they exist.

 

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After shipping, $20 each from dealer is likely cheaper.
No, it should be about $40 for four shipped. Maybe they combine shipping.
 

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They are listed at Partzilla for $15.17 freight free. https://www.partzilla.com/product/suzuki/09482-00646?q_ref=09482-00646

However, I really fail to see how reverting to an old fashioned standard plug can be better, or longer lasting than an iridium plug like these: https://www.ebay.com/itm/4pcs-2012-Suzuki-DL650A-V-Strom-ABS-Adventure-NGK-Laser-Iridium-Spark-Plugs-ft/162382362847?hash=item25cebe38df:g:woMAAOSwq4VaMdl7

Look at this thread active between 2007 and 2015. https://www.stromtrooper.com/dl650-dl650a-2004-2011/18425-stock-vs-iridium-spark-plugs.html
Thoughts anyone?
 

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Discussion Starter #9 (Edited)
I'm not getting free shipping at checkout. $9.95 to ship

However, I really fail to see how reverting to an old fashioned standard plug can be better, or longer lasting than an iridium plug like these: https://www.ebay.com/itm/4pcs-2012-Suzuki-DL650A-V-Strom-ABS-Adventure-NGK-Laser-Iridium-Spark-Plugs-ft/162382362847?hash=item25cebe38df:g:woMAAOSwq4VaMdl7
Those cross reference to the 2nd generation OEM plug. Suzuki saw the need to call for (and install at the factory) a different plug for 2017+.

To be clear, the parts list shows both standard and iridium options (two brands each) for the 2nd generation. None of these options match the OEM 3rd Gen plug...

 

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The point that I was trying to make was that I can remember when those high-tech, new generation, wizz bang, iridium plugs were first introduced and I fitted them to my car - which OEM had the "old" type plugs from new. Just like retrofitting newer hi-tech ignition leads - or LED headlight bulbs.

Now I am being a little careful on this - but I can see no reason for not fitting the older high-tech, longer lasting plugs so long as the depth and heat range remains unchanged.

Sure, your Suzuki dealer will be up in arms at any suggestion of non-OEM parts, but iridium plugs were originally introduced as an upgrade to the industry standard large electrode plug and I cannot see why you cannot today upgrade your standard OEM plug to a "cleaner-burning, longer lasting" alternative.
 

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Seems like the M stands for metal shell.

Not sure why they are so expensive. :confused:

I don't need the fancy iridium spark plugs.

This is what I use in my L2. Bet they would work fine in the L7. CR8E's for $3.50 each I can get locally for cheap. You just have to DIY the gap, the -XX number at the end.

https://www.fleetfarm.com/detail/ngk-standard-spark-plugs/0000000255192?bc=11928|11939|11955|11960

SV forum had this:

Going by SV650rules' NGK Part Number Key the MR8E-9 spark plugs should translate as:

M: Metal Shell Size - ø 10, 19 mm (3/4") Reach, 16 mm (5/8") Hex.
R: Resistor
8: Heat Rating Number - between Cool and Cold
E: Firing End Construction - Special Design
9: Gap Width 0.9 mm (0.036")

Due to no availability of MR8E-9 spark plugs at the time of my 7500 miles (12,000 km) service I ended up replacing them myself at 9000 miles (14,500 km). My owners manual has been amended (with a strip of paper glued over the existing chart) to say the spark plugs for Europe and Oceania countries are to be replaced every 7500 miles (12,000 km) service.
 

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Seems like the M stands for metal shell.

Not sure why they are so expensive. :confused:

I don't need the fancy iridium spark plugs.

This is what I use in my L2. Bet they would work fine in the L7. CR8E's for $3.50 each I can get locally for cheap.

https://www.fleetfarm.com/detail/ngk-standard-spark-plugs/0000000255192?bc=11928|11939|11955|11960

SV forum had this:

Going by SV650rules' NGK Part Number Key the MR8E-9 spark plugs should translate as:

M: Metal Shell Size - ø 10, 19 mm (3/4") Reach, 16 mm (5/8") Hex.
R: Resistor
8: Heat Rating Number - between Cool and Cold
E: Firing End Construction - Special Design
9: Gap Width 0.9 mm (0.036")

Due to no availability of MR8E-9 spark plugs at the time of my 7500 miles (12,000 km) service I ended up replacing them myself at 9000 miles (14,500 km). My owners manual has been amended (with a strip of paper glued over the existing chart) to say the spark plugs for Europe and Oceania countries are to be replaced every 7500 miles (12,000 km) service.

I believe Suzuki misprinted an forgot a 0 at the end of 7500 miles. There is no was a sparkplug in a modern fuel injected motorcycle is only good for 7500 miles.


Personally if the bike was running good and fuel economy hasn't changed I wouldn't even pull the plugs until around 50,000 miles for an inspection and then I'd anticipate reinstalling them for another 50 or 100 thousand miles because they hadn't come anywhere near the end of their service life.
 

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Not sure why they have the 7500 mileage spark plug change. :confused:

My 2011 Jeep came with Champion Iridiums and they went 151,000 miles! Supposed to be changed at 96k but I got a used neglected Jeep.

The gap was at .056" from .040". I had to remove the intake plenum to replace 3 and the cost is probably why they didn't do it. I got stuck doing a ton of preventative maintenance on it.

This Iridium plug would probably be a substitute also.

https://www.ngk.com/product.aspx?zpid=30541

This could be a big spark plug thread just like the oil thread! :)
 

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I had to remove the intake plenum to replace 3 and the cost is probably why they didn't do it. I got stuck doing a ton of preventative maintenance on it.
Consider yourself lucky. My 04 F150 had plugs that would break off when trying to remove. Required a special tool. Cost over $400 to have plugs changed, twice. There was a class action. I received a check for $25. Ford lost a loyal customer.
 

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Look at the top and it says:

NGK.com specializes in hard to find NGK products.
We are not NGK Spark Plugs USA. To contact them, click here

The web site can't even find the MR8EA-9 spark plugs. :confused:
Sorry, the "click here" takes you to the legitimate site with numbers to call.
 
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