Katana Owners Club U.K.

Hi, need to change plugs on my 82 gsx750 katana sz, took out NGK D7ea,s and have NGK D 8ea,s to go
Back in. Which are the correct plugs as I have online information saying both are correct? Thanks.

Had a look at my Suzuki manual.

Either NGK D8EA for E-01, 24, 25, 30, 34

Or DR8ES for the others!

So if you have a Germany, Ireland, Croatia, Dunno, Bulgaria market bike then the book says D8EA.

But to be honest it probably wont make enough difference to worry about.

I would bung in the ‘8 as it’s the stated heat range.

I don't know why it's got 7's in ...has it been rejetted....for somewhere other than our climate?

fossie wrote: ↑

Wed Mar 03, 2021 10:42 pm

I don't know why it's got 7's in ...has it been rejetted....for somewhere other than our climate?

After I posted that, I looked at the NGK place.

They suggest ‘7 heat range. Just to confoose uz

But I’d still throw some ‘8s at it. Just like Skruffy Kat is running.

The NGK catalogue on line isn't usually UK , It's Yank ( spelling Timothy) .
Used to get issues when I worked in parts dept with people looking on line then ordering ....then complain about poor running , like it was our fault.

Personally I have always used DR8 ES L as it is a superceed to EA and easier to come by.

Thanks, I will put the “8,s in “. Bikes running standard air box etc so not known why it had D7ea in.
Ps was Italian import.

I run the DR8EIX

Steve

Moggie47 wrote: ↑

Thu Mar 04, 2021 2:04 pm

was Italian import.

so engine number starts with R701 then? if it does its a nicer 750 than a GS75, better cams in it

Hi, yes the engine number is R701, and it’s running well with the d8eas in.
Thanks