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Best Spark Plugs and Wires for a 78 GS750?

  • Thread starter Thread starter alkswheetinjur
  • Start date Start date
A

alkswheetinjur

Guest
Recently lost spark on one cylinder and I am assuming I need a plug wire. Tried a swapping plugs and no spark, swapped plug wires and its back. The "bad" wire has visible corrosion leading me to think the others are probably on their way out as well. I am looking to upgrade and was wondering what the best options for performance and reliability would be. Also will be replacing plugs if their are any suggestions in that department. Running a Dyna S ignition with Dyna 3ohm green coils. Thanks.
 
Currently running NGK plugs nothing to complain about just wondering if there's something better out there. As far as wires, I like the looks of the red NGK racing wires but can't find any direct fit/don't know exactly what I should be looking for. Anybody using these?
 
Last edited:
NGK B8ES plugs

Copper core 7mm wires w/resistor caps

It's hard to beat the stock configuration
 
60ratrod said:
i ordered cut to length 8mm suppression core wires for both my 81 gs650g and 81 kz1000 and the wires were fantastic!
Click to expand...
Are you also running the usual resistor plug caps? :-k

You can run suppressor wires, resistor caps or resistor plugs. Just ONE of the three.

.
 
For my 900F, I bought a set of plug wires for a Chevy Cavalier on eBay. They are resistor wires. Pretty inexpensive, and the bike runs great.

http://www.ebay.com/itm/7mm-Spark-P...996-1997-US-/272338131186?hash=item3f689e18f2

s-l1600.jpg
 
Steve said:
Are you also running the usual resistor plug caps? :-k

You can run suppressor wires, resistor caps or resistor plugs. Just ONE of the three.

.
Click to expand...

it was just the suppressor wires. I stopped using the suppressor caps when I switched to the dyna coils. the only real reason I went with the suppressor cores is because they were the only ones I could find at a reasonable price that were 8mm. and I bought the set of 8 so I could have wires for both bikes lol.
 
Getting ready to order some NGK BP8ES plugs for my 1980 GS850GT as well. That's what's in it now. However, I am seeing that there are TWO varieties of this plug:

BP8ES SOLID/3994 - Non-Projected

BP8ES/2912 - Resistor - Projected

I can't recall which we use. I'm assuming the BP8ES SOLID - 3994, but could someone please confirm this??

Thanks!!
 
Darin Jordan said:
Getting ready to order some NGK BP8ES plugs for my 1980 GS850GT as well. That's what's in it now. However, I am seeing that there are TWO varieties of this plug:

BP8ES SOLID/3994 - Non-Projected

BP8ES/2912 - Resistor - Projected

I can't recall which we use. I'm assuming the BP8ES SOLID - 3994, but could someone please confirm this??

Thanks!!
Click to expand...

Actually, I think I'm off... I have B8ES - 2411, not BP8ES... NGK application guide is useful and protects you from yourself! :)

http://accessngk.com/part_finder/Motorcycles/
 
I bought some new boots for my cables but are the cables themselves replacable? Arent they connected directly to the coils? And should I use 7mm replacement ones and does it matter which ones? Sorry. Thats alot of questions. Haha
 
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