Question about Ngk CR7HSA 10mm x 5/8 Hex Resistor Spark Plug Stock 4549

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What is the thread size for an NGK cr7HSA spark plug

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Gear oil for 2004 honda crf 100


Fuel and ignition Sparks per cylinder: Fuel supply system: Carburetor Ignition type: Digital CDI Funnel diameter: 0.87 inch Compression: Engine mounting: Transverse Lubrication system: Wet sump Gear box: Manual 5-speed Clutch: Wet, multiple discs, cable operated Final drive: Chain Spark plug pipe type: NGK, CR7HSA Motor oil: Synthetic, 10W/40 Starter: Kick-starter

Jan 11, 2014 | 2004 Honda CRF 100 F

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Spark plug gap chart


What is the spark plug gap for a 1987 420 sel

Nov 08, 2013 | Wolfgang Schmuck Total Scooter

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Are there two different size spark plugs on the bike?


Hi the ntv deauville uses NGK DPR8EA-9 or DENSO X24EPR-U9. Which are all the same size plug, T he gap size is 0.8-0.9. the champion equivelent is RA4HC, you may find the different makes of plug use a diff hex for socket size, if you have a diff thread size then at sometime or other 1 thread has been damaged and re taped to fit. A larger plug size

Sep 18, 2011 | 1998 Honda Deauville NTV 650

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What,s the reason for my honda crf 100 sparkplug getting so dirty all the time i need to keep cleaning it to get it to fire everytime can anyone assist on this problem please help????????????????


The bike may have the wrong spark plug in it. The stock plug is NGK, CR7HSA. You may want to go to a hotter plug > CR6HSA. It is also possible that a prior owner installed a bigger main jet. Check the main jet size. The jet will have a number stamped on one side. Stock is #92. A #98 jet would be a richer jet. Please rate my answer. Thanks.

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Sep 13, 2010 | 2005 Honda CRF 100 F

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Need to know what is the proper spark plug


the standard plug is the ngk CR7HSA

Sep 29, 2009 | 2005 Yamaha XT 125 R

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Don`t know what type of oil to put in or how much.


Use 10w40 motor oil in the gear box. It takes .7 liters / .74 quarts. The stock spark plug is an NGK CR7HSA.

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May 24, 2009 | 2005 Honda CRF 100 F

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2006 crf100 no spark


You have 2 basic possibilities,
  • A kill switch is active
  • The ignition control module has gone bad
The stock spark plug is an NGK CR7HSA. Is a kill switch on? Does the side stand have a kill switch? Is it working properly? Check the operation of all kill switches with a volt ohmmeter.

Check the wiring harness. Did a wire come unplugged? Are all wires clean and with solid connections? Any abraded or pinched wires? If still no spark, get CDI system checked at the dealers shop.

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May 24, 2009 | 2005 Honda CRF 100 F

1 Answer

Oil change and spark plug


  • The bike takes NGK spark plug # CR7HSA.
  • The gearbox takes 10w40 Yamalube.
Please rate this solution as a " FixYa ". Thanks!

Mar 19, 2009 | 2002 Yamaha TT-R 125 L

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