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post #1 of 7 (permalink) Old 06-29-2012, 12:08 PM Thread Starter
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stripped spark plug help

Hey...just got a 1993 vulcan the other day. changed 3 spark plugs without issue but couldn't replace the fourth one. The threads are stripped. I've look into the heli coil...fix-a-thread thingy majiggies but can't find the right size. I think I need a 12mm with a 1.25 thread pitch...Does anyone know anything about this?? Where to find it, how to do it or other ways to go about fixing this?

thanks,
Carollynne
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post #2 of 7 (permalink) Old 06-29-2012, 12:17 PM
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Quote:
Originally Posted by warmheartedrebel View Post
Hey...just got a 1993 vulcan the other day. changed 3 spark plugs without issue but couldn't replace the fourth one. The threads are stripped. I've look into the heli coil...fix-a-thread thingy majiggies but can't find the right size. I think I need a 12mm with a 1.25 thread pitch...Does anyone know anything about this?? Where to find it, how to do it or other ways to go about fixing this?

thanks,
Carollynne
I think the whole spark plug hole can be changed.

See part 92066 on this image.



92066 PLUG,CYLINDER HEAD

Might just be for the deeper ones? I am sure others will have more details.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350
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post #3 of 7 (permalink) Old 06-29-2012, 12:33 PM
..have a vulcan good day!
 
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Only 2 of 4 spark plugs have #92066 Plugs...if your stripped threads are one of the two you are in luck. The #92066 Plug requires a special tool to remove & replace. Mech's remove #92066 plug by removing the rear axle Nut, inserting it into the plug and wrench on the axle Nut.
Hope this helps
Williamtech

'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
Additional Flashing LED Brake Light on Trunk
Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !
...have a vulcan good day!
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post #4 of 7 (permalink) Old 06-29-2012, 03:32 PM
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If it is one of the other two, Helicoil makes one specifically for spark plugs and aluminum heads. http://www.amazon.com/Helicoil-5334-...0998319&sr=1-1
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post #5 of 7 (permalink) Old 07-03-2012, 02:52 AM
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92066 is just a sleeve. The hole that the spark plug actually screws into that goes into the cylinder is drilled into the cylinder. So no matter which plug it is, he's going to need the helicoil.

'95 Vulcan 750 - Purchased 8/2003 w/ 21,124 miles - passed 50K 9/3/15
* VN900 seat * Daytona handlebar * Converted ACCTs to MCCTs * Relocated R/R * Drilled clutch basket * Coastered * Repainted *
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post #6 of 7 (permalink) Old 07-03-2012, 03:01 AM
..have a vulcan good day!
 
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I stand corrected

'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
Additional Flashing LED Brake Light on Trunk
Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !
...have a vulcan good day!
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post #7 of 7 (permalink) Old 07-04-2012, 12:51 AM
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Quote:
Originally Posted by DaveT319 View Post
92066 is just a sleeve. The hole that the spark plug actually screws into that goes into the cylinder is drilled into the cylinder. So no matter which plug it is, he's going to need the helicoil.
^^ Was gonna say this but he beat me to it.

......I'd rather wake up in the middle of nowhere then in any city on earth.

*2014 VN900 Custom (16,200 miles and counting)
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