Question about 2006 Harley Davidson FLHR Road king

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Spark Plug stripout

I tightened up the spark plug too tight and stripped threads. Retapped the threads but am worried the plug will pop out down the road. Is there a fix for this?????

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You can have this repaired professionally, not cheap but will be good and will settle your mind as you drive down the road ... it is cheaper than a new head.

Posted on Jun 05, 2010


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1 Answer

How change spark plugs

Have a look on the following link for the socket/wrench/tool you will need:
spark plug socket Google Search

To avoid getting the ignitions leads replaced in the wrong order:
Remove ONE lead from ONE plug at a time.
Use the tool/socket to remove that plug by turning anti-clockwise.

Put the new socket in hand tight - this is to avoid cross-threading the spark plug and damaging its threads/threads in cylinder head.

When the spark plug is hand-tight/finger tight, tighten it with the socket /tool. Just 'gently tighten it up' - do not overtighten.

Replace the ignition lead and then move onto the next plug.

removing spark plug Google Search

Feb 10, 2016 | 2005 Ford F-150

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How to change the spark plug

1 Spark Plug Spanner 1 New Spark Plug

Pull H.T Lead off the top of Spark Plug, You need Spark Plug spanner to do the job. Untighten Anti Clockwise, Check Gap is correct on the New Plug ! Hand Turn the New Plug into hole, carefull as threaded. Tighten up , till tight , do not over tighten or you might strip thread, Put cap back onto Plug . FINISHED

Mar 14, 2015 | Garden

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How to remove sprocket and clutch from ms250 stihl chainsaw

  1. Remove the clutch drum/chain sprocket
  2. Remove the air filter
  3. Take out the shutter.
  4. Pull boot off the spark plug.
  5. Unscrew the spark plug.
  6. Close the decompression valve, if fitted.
  7. Push the locking strip 0000 893 5903 into the cylinder. (Piston Stop)
  8. Unscrew the clutch from the crankshaft clockwise (left-hand thread).

  1. Screw on the clutch and tighten down to 50 Nm (37 lb.ft).
  2. Install the clutch drum / chain sprocket .
  3. Remove locking strip from the cylinder.
  4. Insert spark plug and tighten down to 25 Nm (18.5 lb.ft).
  5. Fit boot on the spark plug.
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Feb 22, 2015 | Garden

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Have a spark plug that blew out on a honda jazz

If you are lucky, the spark plug was not tightened correctly and worked loose. In this case, you may be able to chase the threads and it will go back in and stay. Make sure the plug is installed correctly this time.

If you are unlucky, the threads will be stripped. In this case, you have 2 choices: thread repair or larger spark plug. Either way, you have to drill and tap the spark plug hole without getting any metal shavings in the cylinder. The main difference is that if you use a thread repair insert, the original spark plug size will fit in your engine; if you tap out the holewithout using an insert you will have to get a different spark plug for the cylinder that was repaired.

Feb 01, 2015 | 2007 Honda Jazz 1.2

1 Answer

Spark plug stuck in motor

The head? The steel hex is still on it? You'll just have to wrench it out. If the threads get stripped, it's just karma. You can helicoil new threads into place. If you are worried about it being too tight, or rusted, use a lot of penetrating oil before you start, and give it time to work- like a few minutes or longer. The ceramic top of the spark plug can be easily broken off. But new spark plugs are ready at hand, I presume.

Apr 05, 2012 | Cars & Trucks

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What do i have to do to change the spark plugs on a 2006 yamaha royal star

On the V4, there are two spark plugs per cylinder, for a total of eight plugs, with four being accessible behind and under the fuel tank, and the other four being mounted behind the fairing, accessible with a socket extension on your ratchet.

Remove the spark plug boot from the spark plug you wish to remove. The spark plug boot is black rubber on the Yamaha Royal Star, located at the top of each cylinder. It is removed by simply pulling the boot straight off of the spark plug. You will hear an audible "pop" when the spark plug boot disengages from the spark plug head.


Insert the spark plug socket onto the spark plug, then the eight inch socket extension, then the socket wrench. Loosen the spark plug by turning the wrench in a counterclockwise motion, being careful not to hit the motorcycle fuel tank with the handle of the socket wrench. The spark plug will stick a little at first, but then will come out easily. Avoid allowing anything to drop into the spark plug hole while the plug is removed.


Insert the head of the new spark plug into the rubber o-ring inside the spark plug socket, then apply a small amount of dielectric grease to the threads of the spark plug to help prevent cross-threading. Gently thread the new spark plug into the spark plug hole until it is finger tight. Cross threading will be indicated by the spark plug's resistance to being threaded after just one or two turns of the spark plug. If this happens, remove the plug and adjust the angle of the plug when inserted into the hole


Thread the spark plug into place, then tighten it down gently, not applying too much pressure. Reinstall the spark plug boot by simply pushing it down over the spark plug head until it snaps into place.

Jul 28, 2011 | 2006 Yamaha Royal Star Tour Deluxe

1 Answer

Spark plug tube striped spark plug jumped out of tube

The issue seems to be related to the spark plug threads. The spark plug is either not tightened down or the threads are stripped, and during the compression stroke when pressure is applied inside the combustion chamber, the pressure leaks thru the spark plug threads and blows off the spark plug boot. If the spark plug is not tightened and the threads are ok, then tightening the plug will resolve this issue. If the spark plug threads are damaged, then the threads will need to be repaired, and will require the cylinder head to be removed to repair the stripped threads. Taking the cylinder head off requires the engine's top end to be ripped apart and re-assembled....big job.

Nov 26, 2010 | 2004 Dodge Stratus

1 Answer

I cross-threaded the plug on my sons ttr 90. Whats the least expensive way out of this mess? thanks

If you are lucky you can buy a tap to match the plug thread to run through for the spark plug to screw in, plenty of grease on the tap to collect any shaving.
plugs dont need to be very tight.
If the thread is completely had it,
there are inserts available for plug threads called recoil, they look like a spring, the thread is retapped and the insert fitted, can be as strong as new. This is ideally done with the head off the bike, but can be achieved with the bike upside down and grease on the thread tap to collect shavings.
Recoil thread repairs are available at tool and engineering shops, they may be called different names in other countries.
Gav Australia

May 14, 2010 | 2002 Yamaha TT-R 125 L

1 Answer

Spark plug pop out when warmng up and wat tighten

Either it is the wrong spark plug or you have stripped threads.

If the treads are stripped, you can buy a kit to fix it or re-tap the hole. Worst case scenario, you need a new head.

Nov 18, 2009 | 1999 Honda CBR 900 RR Fireblade

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How to remove spark plugs from a 2000 nissa maxima

With a socket wrench and a spark plug socket.

Oct 20, 2009 | 2000 Nissan Maxima

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