Question about 1991 Honda CBR 600 F(2)M

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Spark plug gap for honda125 - 1991 Honda CBR 600 F(2)M

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Posted on May 20, 2009

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What is gap

Hi, Mike pertaining to engine spark plugs, "GAP" is the distance between the positive and negative electrodes at the base of the plug and is measured in thousands of an inch or mm by using a round pin gap gauge or flat blade feeler gauge. Every engine manufacturer has a specific design-size-heat range- gapped spark plug. Gaps will vary depending on engine brand. Gap is also referred to in engines using a mechanical "POINTS" ignition system instead of electronic ignition (what is the points gap) for more information about your question and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
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Mar 12, 2016 | Motorcycles

1 Answer

What is the spark plug gap?

It is the tolerance your car manufacturer recommends using certain types of spark plugs. You can buy a spark plug gap from any auto parts dealer for a few dollars. You'll use it to set the space at the tip of the spark plug that is inserted into your engine. The actual spark plug gap tool (I'm sure the tool probably has a technical name) has varying heights along the edge and you just find the height recommended from your car manufacturer and insert it between the spark plug gap and remove it. It's that simple. This is needed to ensure your spark plugs fire at the proper time based on the actual car's engine.

Oct 08, 2015 | Motorcycles

1 Answer

49cc no spark

What make, model, year is the bike??? The coil likely has no gap to set. Do you have a points type ignition system?? The spark plug and any other gap(s) will always be critical so do not rely on a bit of business card or other thing unless you know it is of the correct or close to the correct thickness to achieve the proper gap. With points if the gap is to large the dwell will not be sufficient to allow an adequate voltage rise and if the spark plug gap is too small it will allow a weak spark to jump too soon and if it is too large the spark may never reach a high enough voltage to bridge the gap. It could be so weak, so low voltage that it will not bridge a spark plug gap or you will not see it or otherwise evidence it because it is so weak. If there is spark but weak and the bike will not fire this is exacerbated with increasing compression pressure as it will be harder for the spark plug to fire/spark as required with increased pressure. With some bikes if you have both of two spark plugs disconnected ie wires not grounded at the plug end there will be no spark produced. That is another reason why bike information is needed to properly address your question. Also one would like to know how you are testing for spark? You also should provide some history of the problem and why you have done whatever you have done so far?


Aug 17, 2014 | Motorcycles

1 Answer

What is the spark plug gap

A gap tool is what you use to set the gap on your spark plugs...The gap is the tiny space on your spark plug that allows the plug to fire the engine. When you buy the spark plugs at the auto parts, the spark plugs come pre gapped for your specific engine. I usually check them to make sure.

Aug 03, 2014 | 2003 Suzuki VZ 800 Marauder

1 Answer

Spark plub gap for revtech engine 100cid

Spark plug gap will be determined by the spark plug make and type etc. I recommend only H-D plugs in H-D bikes but ...........

Apr 20, 2014 | 2003 Harley Davidson FLSTC Heritage...

1 Answer

Spark-plug gap honda elite

as the spark plug gap gets larger with use (called spark errossion) it is not critical usually 0.7mm is fine

Nov 15, 2012 | 2002 Honda CR 125 R

1 Answer

2006 FXSTD Spark plug gap?

Hi Anonymous, HD 6R12 spark plugs are gapped at .040"
Good luck

Apr 16, 2012 | 2006 Harley Davidson FXSTDI Softail Deuce

1 Answer

Hi we have a 1976 Honda xl 125 can anyone help with the wiring? Trying to get spark, changed spark plug etc but wiring was all undone and we need to put it back together right for spark.

my 1976 honda125 cc xl wont start ive checked everything all the wires and spark plug and iget spark but no start what could it be?

Aug 19, 2011 | 1983 Honda XL 125 R

1 Answer

Whet is spark plug gap

Spark plug gap refers to the amount of separation between the center electrode of the plug and the bent tang at the bottom of the plug. Too small a gap and you get a weak spark. Too wide a gap and the plug may not fire every time. Most bikes today have CDI (Capacitor Discharge Ignition ). CDI produces a strong spark and works best with a gap of .35 to .45.


May 08, 2010 | 2002 Suzuki GZ 125 Marauder

2 Answers

Whats the spark plug gap for a 2004 honda crf150f . i added a new spark plug but the gap might be wrong. but when i go to kick start it it seems to have less compression.

Less compression has nothing to do with the spark plug unless it is not tight on...As a rule the gap should be enough for a saw blade.Hope this gives you an idea...

Dec 13, 2009 | 2004 Honda CRF 150 F

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