Spark plug sizes?

[Crow]

After not being able to find an 18mm socket that would fit on my '92 Katana 600, I tried a 5/8 and it fit perfectly. The plugs are labeled CR9EK, I thought that the DR8ES was the right plug? Could I have a different engine?

The bike has the stock airbox, and a D&D exhaust pipe. I haven't pulled the carbs yet to see the jet sizes. I think it's running rich.

[Crow]

Well, the float bowls look pretty good overall...the jets I saw were labelled 112.5, though I didn't do much - I'm going to at least wait for the manual. The bike seems to run strong, when it's running, but the plugs were pretty black & it won't start now.

[joe]

DR8ES is standard for the 600 up through 1995
1996 and up uses CR9EK

[smartone1971]

I looked it up. it's a Multi-ground plug. check out the NGK site. http://www.ngk.com/results_cross.asp...R9EK&x=36&y=11
wow. the threads are different sizes check the numbers on the side of your case.

[Crow]

I saw the dual electrodes...the engine says "N717-102547"

[Kreylyn]

Well, the float bowls look pretty good overall...the jets I saw were labelled 112.5, though I didn't do much - I'm going to at least wait for the manual. The bike seems to run strong, when it's running, but the plugs were pretty black & it won't start now.

I don't know what year/cc your bike is, so I can't answer the question on the main jet size.



Krey

[kevin2502000]

I don't know what year/cc your bike is, so I can't answer the question on the main jet size.



Krey

Right here

After not being able to find an 18mm socket that would fit on my '92 Katana 600, I tried a 5/8 and it fit perfectly. The plugs are labeled CR9EK, I thought that the DR8ES was the right plug? Could I have a different engine?

The bike has the stock airbox, and a D&D exhaust pipe. I haven't pulled the carbs yet to see the jet sizes. I think it's running rich.

[Kreylyn]

I guess I could read more for comprehension...

Stock sizes for the jets on a 92 600 would be 112.5

Krey

[smartone1971]

hey look up your vin number at this site.

http://www.suzukicycles.org/_misc/identification.shtml

from what it looks like is it's a 600 but not sure of the year.

[that guy]

those two plugs are different heat ranges, if it runs funny after changing them you may have to go back to the origional type of plug

[Crow]

Well, it's definitely a Suzuki engine, maybe it's from a later Katana? What years used this size plug?

[ZukiFred]

http://www.motorcycleanchor.com/katana/katana_tree.html