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Brisk Spark plugs issues

Started by Bozo, February 25, 2013, 10:00:03 PM

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movenon

#15
March 03, 2013, 10:25:55 PM
Well hell, there go's my chance to sell my cow magnets......
George :yahoo:
Life isn't about having the best, but about making the best of what you have...

1990 FJ 1200

Bozo

#16
March 04, 2013, 04:24:23 AM
Quote from: movenon on March 03, 2013, 10:25:55 PM
Well hell, there go's my chance to sell my cow magnets......
George :yahoo:

Don't you mean chick magnets?....................buy a hog  :flag_of_truce: (fitted with NGK spark plugs)
First major bike in my life was a Mach III widow maker.
My Second permanent bike 1978 Z1R (owned since Dec 1977)
My Third permanent bike is the 89 FJ12 - nice and fast
Forth bike 89 FJ12 my totally standard workhorse
81 GPZ1100 hybrid - what a bike, built to sell but I can't part with it

JMR

#17
March 09, 2013, 07:48:28 AM
The ceramic looks cracked in the first pic. I prefer Denso Iridiums over the NGK. I have heard stories recently of knock off NGK's

candieandy

#18
March 12, 2013, 11:57:56 AM
The ceramic isn't cracked. Its called carbon track: which is a carbon build-up from external misfires.
HAUI

Bozo

#19
March 12, 2013, 03:44:45 PM
Quote from: candieandy on March 12, 2013, 11:57:56 AM
The ceramic isn't cracked. Its called carbon track: which is a carbon build-up from external misfires.
You could be right, makes sense, I'll check it out when I get home in a week (just returning from fj rally). Thankyou great suggestion
First major bike in my life was a Mach III widow maker.
My Second permanent bike 1978 Z1R (owned since Dec 1977)
My Third permanent bike is the 89 FJ12 - nice and fast
Forth bike 89 FJ12 my totally standard workhorse
81 GPZ1100 hybrid - what a bike, built to sell but I can't part with it

candieandy

#20
March 13, 2013, 09:14:51 AM
Make sure you replace your resistor caps when you put in new spark plugs. That carbon track will be on the inside of the caps as well.

A set of NGK Iridium DPR8EIX-9 #2202 and resistor cap XD05F #8072 will take care of this problem.
HAUI

Bozo

#21
March 22, 2013, 03:26:25 AM
Quote from: candieandy on March 13, 2013, 09:14:51 AM
Make sure you replace your resistor caps when you put in new spark plugs. That carbon track will be on the inside of the caps as well.

A set of NGK Iridium DPR8EIX-9 #2202 and resistor cap XD05F #8072 will take care of this problem.

Just checked the plugs, they are carbon tracking but the cracks are definitely cracks and not just carbon tracks, the spark was actually coming out of the cracks to the body  and not from the plug cap itself.
Anyway I now have standard NGK's but because of the higher compression and hotter running I'm using colder plugs (9's instead of 8's). If these colder plugs work better I'll eventually switch to the equivalent Iridiums
First major bike in my life was a Mach III widow maker.
My Second permanent bike 1978 Z1R (owned since Dec 1977)
My Third permanent bike is the 89 FJ12 - nice and fast
Forth bike 89 FJ12 my totally standard workhorse
81 GPZ1100 hybrid - what a bike, built to sell but I can't part with it

JMR

#22
March 23, 2013, 01:52:35 PM
Quote from: candieandy on March 12, 2013, 11:57:56 AM
The ceramic isn't cracked. Its called carbon track: which is a carbon build-up from external misfires.
I knew it was cracked.
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