Spark Plug Magic

JWKZ750
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Spark Plug Magic

23 Jul 2017 16:12

I have a 77 Yamaha XS650 and ppl swear that NGK iridium plugs make ir run better.

I got a 77 Kawasaki KZ750 for my bday a few months back and I wonder, can anyone suggest a "better-than-stock" spark plug for this bike?

Thanks!

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TexasKZ
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Re: Spark Plug Magic

23 Jul 2017 16:15

#767559

Spark is spark. Save the extra money for beer.

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD slowly moving toward resurrection
2000 ZRX1100 not ridden enough

www.kzrider.com/forum/11-projects/620336...amateur-build-thread

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Z1Driver
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Re: Spark Plug Magic

23 Jul 2017 16:49 - 23 Jul 2017 16:50

#767560

:lol: Yeah. regular NKG's do a good job. But i have to agree with TexasKZ.

Blue 1975 Z1B
Red 2009 Concours 14

Last edit: 23 Jul 2017 16:50 by Z1Driver.

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KZB2 650
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Re: Spark Plug Magic

24 Jul 2017 07:02

#767596

Put a set in my bike quite a while ago and the insulator dis colored around the base pretty bad on all 4 so I went back to reg NKG's and Champions. Did double check to make sure I had the correct number and heat range. Maybe they've improved the seal now but for the money I wasn't happy. Seems like you might get a tiny bit of perf out of em but its probably like everything else and just hype.

1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.

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TwoCam
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Re: Spark Plug Magic

24 Jul 2017 07:09

#767597

Normal NGK plugs are fine.Just gap them properly. the extra expense if iridium is money well spent elseware. what ever you do don't use Bosch platinium plugs!!!! they are horrible. Volkswagen switched over to NGK from Bosch years ago, best thing they ever did. I always use anti-seize on the threads and dielectric grease on the connector.

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