How to change sparkplug wire on atv


Sixity How To: ATV and UTV Spark Plug Installation

WHEN TO REPLACE YOUR ATV/UTV SPARK PLUG(S)

Generally speaking you will want to replace the spark plug(s) after each 100 hours of use. This assumes of course that your engine is running normally and you are not experiencing problems like a "rough engine" or an engine that fails to catch while the ignition is turning over. If these occur it's time to pull the plug and determine if it is the problem or some other component is the cause.

WHILE YOUR AT IT:

Actually pulling the plug, inspecting and replacing it only takes 5 to 10 minutes. However, unlike a car you can't pull a handle and pop the hood to get to the spark plug. On an ATV you have to remove plastic (exterior panels) to expose the plug and depending on your brand that could be a lot of plastic. Pulling off parts is the real time consumer for this task.

Because it takes a bit of work to "open up" your ATV it's a good idea to check a couple of items while they are easily accessible. Make certain that the bolts on the battery cables are firmly attached to the battery posts. A common "won't start" problem is often the result of hard riding loosening the bolts from the battery terminals.

Your exhaust system is another component that is accessible in most models when you have sufficient exterior panels removed to get to the spark plug. Check the bolts holding the pipe to the engine to ensure a secure fit.

DISCLAIMER:

The steps we provide below are general in nature and are not meant to replace the instructions found in your OEM owner's manual. Obviously different brands have different engine mounting configurations meaning the location of the spark plug and how easy it is to access will vary. When in doubt, follow the OEM instructions. Our tips are intended to show you that this repair can be done as a DIY project saving you professional labor costs and a more enjoyable ATV experience.

THINGS YOU'LL NEED:

  • Shop rags
  • Screwdriver (to remove exterior panels)
  • OEM Spark Plug Pulling Tool or a socket, driver and extensions
  • Wire Gauge
  • Socket wrench set
  • OEM Manual
  • "Fine" Sandpaper
  • WD 40

REMOVING THE SPARK PLUG

  1. Refer to your OEM manual to determine which piece(s) of plastic you need to remove to gain access to the spark plug. If you don't have the manual check the manufacturer's site online and see if they have one for download.
  2. Remove the plastic.
  3. If you are unsure where the spark plug is just follow the spark plug wire (blue or red) to the boot. The plug is under the boot.
  4. Spray a little WD 40 around the boot and the surrounding area and then wipe clean. The last thing you need is debris falling into the engine once you have pulled the plug.
  5. Grab the spark plug wire boot and pull in the same direction that the plug is pointing. This may require a bit of effort so look to see where your hand is going to go when the boot snaps free to avoid a scraped knuckle.
  6. With the boot off slide the OEM plug puller tool over the plug and turn counterclockwise to unscrew. If you don't have the manufacturer's tool use a socket, driver and extension and do the same thing. If the plug is difficult to move, spray a little WD 40 around the base and wait a minute.

INSPECTING THE SPARK PLUG

  1. Even if you plan to replace the plug with a new one, inspect it and see if it's wet or smells of raw fuel. If so you may have a break in the engine seal. If you have pulled it just to clean it you can use WD 40 or fine grade sandpaper to remove carbon buildup. Use the gap gauge to set the gap and then reinstall.
  2. If the starter works but the engine won't catch it may be the plug or the spark plug wire. Clean and set the gap of the plug and then connect it to the spark plug wire. Hit the ignition and see if the plug gives off a good spark. If it doesn't, try the same test with a new plug. If there is still no spark the problem is most likely a faulty spark plug wire.

INSTALLING THE SPARK PLUG

  1. Basically you are going to do the same steps as "remove" only in reverse.
  2. Make certain the new plug is set at the correct gap.
  3. Insert the plug and tighten by hand if you can. Use the plug puller tool or socket for the final quarter to half turn. Do not over tighten the plug. Most ATV engine blocks are made of soft metals and you can damage them if you apply too much pressure to the plug.
  4. Check the connections inside the spark plug wire boot for dirt or carbon and clean if needed. Place the boot over the plug and push down until you hear it snap into position.
  5. Before you go to the effort of reinstalling the plastic, press the starter and make certain your plug is firing.
  6. Reinstall the plastic.

Replacing the spark plug is a simple DIY task that almost anyone can accomplish in a minimal amount of time.

 

- End of Procedure -


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How to Replace Your Spark Plug Wires


The best spark plugs in the world won’t deliver if the sparkplug wires connecting them to your distributor cap aren’t up to par. Good spark plug wires are essential for reliable ignition performance. Bad ones will cause spark plug misfiring, hard starting (especially during rainy, cold or snowy weather), rough idle, hesitation when accelerating, poor fuel economy and increased hydrocarbon (HC) emissions. On 1995 and newer vehicles with OBD II Onboard Diagnostics, a bad wire-prompted misfiring may set a fault code and light up your “Check Engine” signal.

Good spark plug wires are just as essential to ignition performance as your spark plugs themselves.

If you’ve got any of these problems going on with your ride, inspect the sparkplug wires and look for burns, cracked insulation, chaffing, visible arching and loose plugs or terminals. If you see any of those, it’s time for new wiring. Luckily, replacing your spark plug wires is fairly easy and typically requires no tools. But get it wrong and your hot rod won’t leave your garage until you fix it. To make sure you get it right the first time, E3 Spark Plugs offers step-by-step instructions on replacing your spark plug wires.

  • First, lay out your new spark plug wires according to length if they’re not numbered (most will be numbered and most come in black, though you’ll also find them in blue, red, orange or yellow.
  • Start at one end of the engine and remove only the first spark plug wire by pulling on the boot at the end of the wire until it pops off.
  • Follow the wire with your hand to the other end and remove it from the distributor cap. Note that in some vehicles, this end of the spark plug wire is permanently attached to the distributor cap. You know what that means – You’ll have to replace the entire distributor cap. Sorry ’bout your luck.
  • Check your spark plugs to ensure they’re still in good condition. Hopefully, you’ll see spark plugs lightly coated with grayish brown deposits. If they’re covered in black or if the electrode or core nose is worn, cracked or otherwise damaged, replace them with new spark plugs. Keep in mind that spark plugs typically foul long before they wear out and that a single fouled spark plug can ransack up to a quarter of a four cylinder engine’s power.
  • Replace the old spark plug wire with one numbered the same or of the same length. Listen for a quiet “pop” that lets you know the wire is securely connected to the spark plug. Most cars have small plastic pieces with slots designed to hold the wires in place and keep them from rubbing together or resting on engine parts. If your vehicle has one of these, use it! It will help them last longer.

DO NOT be tempted to pop off all the wires at once. Even if your spark plug wires are numbered, it’s too easy to get them mixed up and connect your spark plugs to the distributor cap in the wrong order. Do this and you’ll have changed the firing order. Your car will run like a racehorse with a bum leg or might not run at all.

Also, don’t assume that new spark plug wires will be part of your 30,000-mile tune-up. Most shops don’t include this service because it bumps up the cost of your tune up. A new set of wires can cost anywhere from $20 to more than $100 depending on the type of vehicle and the quality of the wires. Don’t skimp here. Cheap spark plug wires won’t save you a dime in the long run.

Wires, spark plugs - CFMoto X8 FAQ

Expensive option:

At a fairly high cost, however, these wires very successfully solve the problem of "triple" of the engine when water gets on them, or the engine is immersed in water fully.

The material from which they are made perfectly protects the ignition system and prevents breakdowns in the most difficult conditions, and platinum or iridium candles provide a more confident engine start and more confident and smooth operation, especially in the first minutes after starting. Cheap option:

High voltage wires NGK RC-LD302 or NGK 7104

so enough for two ATVs.

The price of a set of 4 wires at the time of adding this material is 473 rubles on Exist.ru, against the price of 1,036.87 rubles for one wire NGK 8035

But I must say that these are completely different wires, although they are also from NGK. Other materials, other execution.

However, they also eliminate the problem of "triple" in the water, and are much better than regular wires.

Quote:

My quad had a problem, as you drive through a puddle, one of the cylinders began to work intermittently. The problem turned out to be dead high-voltage wires.

Well, as always, we turn to the dealer "as it often happens to laugh at prices," we laugh at the inadequate price of 600 rubles. for one china posting and let's go dig the CFMoto CF800-X8 forum in the hope of finding alternatives.

But surprisingly, I found an offer here to exchange for NGK 8035 wires, which naturally surprised me, because the price of this wire is even more inadequate 1100 for one posting, and they need 2!

I decided to go to an auto parts store for Russian cars, and here it is our salvation, a set of four wires for a VAZ 2106. Four wires of excellent quality manufactured by NGK for only 483 rubles. The part number for these wires is RC-LD302.
The tip itself, which is put on the candle, does not even need to be redone, it fits well and is even less bulky and is put on the candle more tightly.
Here is a photo of the old tip put on the candle and the new one. Old on the left, new on the right.

From the other end of the old wire, remove the boot and put it on the new wire, cut off the new wire so that it is the same length as the native one. The metal tip itself, which is inserted into the ignition coil, is simply crimped on the old wire, we take it and gently unclench it with improvised means, such as side cutters and a screwdriver. We clean very carefully the tip of the new wire about a centimeter, so that the central black vein remains, we clean it very carefully, the wire is very easy to cut and you can accidentally cut off the conductive central vein we need. We bend this vein as it was done on the old wire, and put on and crimp the old tip on the new wire with pliers. That's all, the wire is ready. Issue price 483r. for both wires, and besides, there will be 2 more wires from the kit for a friend or for yourself in reserve.

Here is a photo of the box with wires:

After replacing the wires, swimming in puddles no longer affects the operation of the engine, I consider the experiment successful. Collective farms for health, because the more we collective farm, the faster prices will adjust to us.

Which option to choose, everyone must decide for himself.

Thanks for the material, Mikhas, Hab!

Thank you Mikish for the clarification on the type of candles!

For material on NGK wires for VAZ, thanks to lexus5!

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SuperIgnition.rf - a project dedicated to the universal ignition system for ATVs DO NOT SWITCH ON THE IGNITION WITHOUT THE HIGH WIRE, THE PLUG, OR IF THE PLUG IS NOT TWISTED INTO ITS PLACE OR IS NOT RELIABLELY EARTHED TO THE ENGINE BODY!!!


A SCRETTER WILL COME TO THE COIL WITH A PROBABILITY OF MORE THAN 50 PERCENT!!! THIS IS ESPECIALLY RELATED TO "DRY" COILS OF THE TYPE FROM "VOLGA", "OKI" OR "MATIZ".

IN THIS COIL, THERE IS A BREAKDOWN INSIDE THE COIL AND THE INTERTURN SHORT CAN APPEAR!!! THE PRESENCE OF INTERTURN SHORT ON SIMPLE SYSTEMS WITHOUT PROTECTION AGAINST SHORT CLOCK DOES NOT INTERFERE TO WORK AND THE SPARK IS PRESENT, BUT NOT FOR LONG - AT THE END OF THE END THE COIL DIES AT ALL. MY SYSTEM HAS BUILT-IN SHORT PROTECTION AND WILL NOT WORK WITH PUNCHED COILS!!!

To connect the ignition control unit (BUZ) to the ATV's on-board network (only connector 1 is used), disconnect the standard CDI unit from its connector (or disconnect the DPK connector) and disconnect the BB wire of the standard ignition coil from the spark plug to the "signal" wire ( most often it is a blue or white-blue wire) DPK connect the BUZ input (blue wire), make sure that the second DPK wire (most often green) is connected to ground (sometimes it is connected to ground only in the CDI unit, sometimes directly in the generator)

Black wire BUZ to ground, the second black wire to the "-" DPK, yellow wire BUZ to + battery (battery) after the ignition switch (it is convenient to connect it to the "+" terminal of the cigarette lighter), white wire to the terminal of the ignition coil, Terminal " + "ignition coils through a 15 amp fuse !!! on + battery, BB wire to the coil and spark plug. Increase the gap on the electrodes of the candle to 1 mm (If you are not sure that you can correctly increase the gap so that the contact surfaces of the candle remain strictly parallel, then you will have to learn how to do it :). Securely fix the ignition coil and BUZ on the quadra frame (the unit is fastened with self-tapping screws or M4 screws through the holes that are accessible when the cover is removed).


We strongly recommend that the block body be securely connected (electrically) to the quadra frame, if the body is attached to plastic - with an additional thick wire (to the wire terminal, terminal for the block mounting screw) connect it to the "-" battery or frame!

If this is not done, then in most cases nothing terrible will happen and everything will work fine anyway :o)

That's it, you can start it. As wound up, you should reduce the speed of the twentieth - most likely they will increase to 2000 - 2500 rpm.

To return to the standard ignition system: disconnect connector 1 BUZ, the standard CDI unit into place in its connector, the BB wire from the standard coil to the spark plug.

Connector number 2 is up to you :o)


Installation problems and solutions:

There are several points to pay attention to when installing and starting the system. Here is a list of what caused the ignition to work poorly on different quadrics:

  1. The contacts on the ignition coil are mixed up - the solution is to swap them :o) . In fact, the ignition coil will work whenever it is connected, but for contact systems it is turned on exactly the opposite and there is some confusion in the marking of the terminals. You don’t have to think much about this issue, if the engine starts but it immediately starts to sausage straight from idle - change the wires on the coil in places.
  2. The gap on the electrodes of the spark plug is too small - it must be increased to 1 mm, with a small gap, the arc burning time after the discharge is greatly increased and problems may arise at high speeds. (Better just buy a new NGK spark plug)
  3. A regular BB wire was used, apparently already completely fig, replacing with a new one solved the problems.
  4. It is necessary to screw a "pimp" on top of a regular candle - like on car candles, I complete the ignition of the explosive with a wire from a car - on the candle there should be a "pimp" on top and not a "screw" with a thread.
    Or rearrange the cap of the candle from the native wire, the one under the "screw".
  5. Voltage drop on the stealth 500K when the headlights or fan are turned on, resulting in interruptions in operation. The solution is to connect the coil directly to the battery, eliminating the causes of the voltage drop on the on-board network. (as a rule, the contacts on the main fuse, which is on the starter relay, are oxidized)
  6. We bought a cheaper coil .... new, beautiful, but refused to work ... They returned it, bought it more expensive - everything worked fine ...
  7. The wires from the crankshaft position sensor are mixed up. (once they forgot to connect the second wire from the inductive sensor to ground - of course, nothing worked and the blue LED did not light up ... not in all quadrics it is shorted to ground directly in the generator ...)
  8. On one square, the inductive sensor is not the same as everyone else - the resistance is several times higher and it seems to give out several times more voltage (the signal amplitude of a conventional sensor is from 2 to 50 volts, depending on the speed, the block is designed for it.)
    Solution (not yet final, but it seemed to help) - the signal from the sensor to the unit (blue wire) is fed through a 5-7 KΩ resistor ...
  9. Once again, we decided to use a piece of standard wiring to connect the coil... for some reason, nothing worked, after connecting with "fresh wires" from the kit, everything fell into place.
  10. Sometimes the DPK gap is set too small, it should be 0.5 - 0.8 mm, if it is very small, it will not work at high speeds.

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