Author Topic: 77 CB550K Plug??  (Read 1014 times)

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keener

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77 CB550K Plug??
« on: May 26, 2008, 01:17:13 PM »
I am wondering what plug to use for my 77 550K, I have been told to use NGK D7EA (fellow member) , DR7EA (NGK Site) , D7ES (Manual)

What one do I use

Offline number13

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Re: 77 CB550K Plug??
« Reply #1 on: May 26, 2008, 01:21:58 PM »
Use the D7EA.
Plugs with an "R" in the name have resistors, don't use them.

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Offline TwoTired

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Re: 77 CB550K Plug??
« Reply #2 on: May 26, 2008, 01:25:44 PM »
Issues with trust?

D7EA is the correct plug for a 500/550.  If you insist on using Resistor plugs, then replace all your spark plug caps with non-resistor types,  Or, learn to enjoy the "benefits" of lower spark voltage, particularly after you have some miles on the plugs and points.

Cheers,
Lloyd... (SOHC4 #11 Original Mail List)
72 500, 74 550, 75 550K, 75 550F, 76 550F, 77 550F X2, 78 550K, 77 750F X2, 78 750F, 79CX500, 85 700SC, GL1100

Those that learn from history are doomed to repeat it by those that don't learn from history.

keener

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Re: 77 CB550K Plug??
« Reply #3 on: May 26, 2008, 02:30:11 PM »
haha Point taken, Ill go with the non-R Plugs

Offline OldSchool_IsCool

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Re: 77 CB550K Plug??
« Reply #4 on: May 26, 2008, 02:34:22 PM »
The D7ES and D7EA are the same plug, just old vs. new numbering system. 
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Offline ger87410

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Re: 77 CB550K Plug??
« Reply #5 on: May 26, 2008, 02:41:05 PM »