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Author Topic: honda cb750f1 spark plugs  (Read 681 times)

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Offline stewonepot

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honda cb750f1 spark plugs
« on: January 15, 2015, 12:43:56 PM »
Hi Guys
I have just taken my plugs out ,to replace with new and found that the code is   ngkd8es-l.
I was under the impression that the recomended plug is ngkd8ea .
My bike is a cb750f1 (from germany) if that makes any diff!
Thanks for looking Stew
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Offline flybox1

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Re: honda cb750f1 spark plugs
« Reply #1 on: January 15, 2015, 12:48:55 PM »
IIRC,  the 'L' is for long.
yes, D8EA's are the correct NGK plugs
Id be interested in knowing if your bike acts differently/better with the D8EA's...

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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
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"This is my CB. There are many like it, but this one is mine…"

Wobbly

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Re: honda cb750f1 spark plugs
« Reply #2 on: January 15, 2015, 01:03:57 PM »
If it's from Germany, then it was initially equipped with NGK DR8-ESL rather than the D8-ESL. Not that it makes a difference to you.
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Offline flybox1

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Re: honda cb750f1 spark plugs
« Reply #3 on: January 15, 2015, 01:09:05 PM »
thanks for the correction.  I missed that 'Germany' part.  ??? ::)
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Nic

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Re: honda cb750f1 spark plugs
« Reply #4 on: January 15, 2015, 01:10:07 PM »
Quote from: flybox1 on January 15, 2015, 12:48:55 PM
Id be interested in knowing if your bike acts differently/better with the D8EA's...
D8ES-L, stock in the good ol days, is 1/4 range hotter than D8EA. I found a bloke with a stash of D8ES-Ls n bought 20 off him. I'll use them in winter, might be just a tad better at startup in the cold.
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