83 550L spark plugs

[Robyle3]

For my first post on the forums, I’m hoping to get some help locating some spark plugs for my ‘83 GS550L. Some parts warehouses are saying that the plugs are an NGK D9EA type, but I can’t find any on Amazon for less than $44cdn apiece. Anyone know similar plugs that will work or drop-ins? I’ll try to get some pictures of the plugs in another post soon. Thanks in advance for any help or suggestions!

[rphillips]

Welcome to GSR, try google, NGK D9E cross reference chart. Back in the day NGK or Nippon Denso were the most popular for our bikes, but I don't remember hearing of any bad ones.

[Cipher]

Ngk D9ea is oem stock.
or Nippon denso X27es u

[tom203]

A few sellers on eBay have them…..maybe $16 for four

[Cipher]

For my first post on the forums, I’m hoping to get some help locating some spark plugs for my ‘83 GS550L. Some parts warehouses are saying that the plugs are an NGK D9EA type, but I can’t find any on Amazon for less than $44cdn apiece. Anyone know similar plugs that will work or drop-ins? I’ll try to get some pictures of the plugs in another post soon. Thanks in advance for any help or suggestions!

Go to Canadian tire. Call cos their website and inventory control is crap

[Cipher]

I think 9s may be discontinued. Ive used d8ea without issue though many plug replacement intervals.

[Cipher]

https://fortnine.ca/en/ngk-standard-spark-plug-d9ea

cheap enough and unlike Amazon probably not counterdeit

[rphillips]

There's been talk of counterfeit NGK's out there, I personally know nothing about them. Could be worth another Google., think I'll do it now.

[Robyle3]

Wow thanks soo much for the responses everyone! Definitely going to try that fortnine link. Had no idea about the counterfeit plugs. All that effort to nab a few dollars from someone lol

[Rijko]

yeah i know, have been bit by fake NGK B8ES spark plugs.
Would fail several within a couple thousand miles, sometimes 100 miles.
Was looking at everything on my bike and when the box of 10 (fake) B8ES
plugs was done i put in some 20 year old used ones i had laying around.
Problem solved, but it made me look for issues with the plugs and only then found out
there were fakes around ... and a lot of them, too.
Quite simple to spot the fake ones when you know what to look for ... lesson learned.

[1978GS750E]

yeah i know, have been bit by fake NGK B8ES spark plugs.
Would fail several within a couple thousand miles, sometimes 100 miles.
Was looking at everything on my bike and when the box of 10 (fake) B8ES
plugs was done i put in some 20 year old used ones i had laying around.
Problem solved, but it made me look for issues with the plugs and only then found out
there were fakes around ... and a lot of them, too.
Quite simple to spot the fake ones when you know what to look for ... lesson learned.

Well.......what is the simple thing we are to look for to spot the fake plugs?

[Grimly]

Well.......what is the simple thing we are to look for to spot the fake plugs?

https://www.ngkntk.com/newsroom/blog/emea/fake-or-not/

https://www.blingstrom.com/modmondays-fxt-1/2020/1/5/ngk-counterfeit-spark-plugs-how-to-tell-the-difference-ilfr6b-6481

[Robyle3]

Almost feel like I should recommend this for a sticky haha. Fake plugs/parts are a bane on restoration and maintenance on our ol’ steeds.

[Nessism]

I've switched to ND plugs. They are just as good as NGK, but easier to find these days.

[Robyle3]

I've switched to ND plugs. They are just as good as NGK, but easier to find these days.

Just started reading your “top mistakes” thread! Gold mine there haha