Spark Plug Caps

Maintenance, repair, troubleshooting, etc.
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Martyn41
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Joined: Fri May 01, 2015 4:35 am
Region or State: Ireland
Motorcycles Owned Currently: 1997 XJ600S Diversion

Wed Sep 06, 2017 12:28 pm

No 2 of the Spark Plug Caps on my xj600s are the same....
Some are in dire need of replacement...
I may replace them with NGK caps but should I buy the plain caps or the ones with a resistor built in ???
Thanks

Martin

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TonyKZ1
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Region or State: Missouri, U.S.A.
Motorcycles Owned Currently: 1997 Yamaha XJ600s Seca II
Location: Marble Hill, MO. U.S.A.
United States of America

Wed Sep 06, 2017 1:08 pm

I'd said probably the ones with the resistor built in, but you might wait to see what the other members recommend.
1997 Yamaha Seca II - mostly stock, Racetech upgraded forks, FZ6R rear shock, Oxford Adventure Style Heated Grips, Barkbusters Blizzard Cold Weather Handguards, a Scottoiler vSystem chain oiler. My Mileage Tracker Page.

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Unit562
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Region or State: Seattle, Washington
Motorcycles Owned Currently: 1993 Yamaha XJ600 SECA II, 1984 Honda Magna V30
Location: Seattle, Washington
United States of America

Tue Oct 10, 2017 2:19 am

I have NGK high performance wires on mine with what I assume are resistor caps built in. They clamp onto the threads on top of the spark plugs. One of the old guys at NAPA instantly identified them and went on about something unrelated, then told me finally that he hadn't carried them for a long time.
One bad idea fuels most Bike Nights.
My Civic isn't a lawnmower, it's a weed whacker. Get it right, gosh.

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