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Aprilia Spark Plug Fitment Chart

aprilia spark plug fitment - Aprilia Spark Plug Fitment Chart

If you’re servicing your Aprilia, now’s the chance to upgrade your spark plugs to longer-lasting Iridium ones that will save you money in the long run.

But if you just want to stick with standard copper plugs, that’s fine too.

Our chart below lists the fitments for almost all of the Aprilias produced in the past decade.

Table of Contents

Aprilia Spark Plug Fitment Chart

 

ManufacturerModelStandard PlugIridium PlugElectrode Gap
APRILIA6.35 TUAREG WINDNGK D8EANGK DR8EIX0.5 MM
APRILIAAF1-125 FUTURANGK B10EGNGK BR10EIX0.5 MM
APRILIAAF1-125 REPLICANGK B10EG 0.5-0.6 MM
APRILIAAMICO 50 GLNGK BR7HSNGK BR7HIX0.6 MM
APRILIAAMICO 50 LXNGK BR7HSNGK BR7HIX0.6 MM
APRILIAAREA 51 (2-Stroke-Oil)NGK BR8HSNGK BR8HIX0.7 MM
APRILIAATLANTIC 125NGK CR8EB  
APRILIAATLANTIC 200NGK CR8EBNGK CR8EIX0.8 MM
APRILIAATLANTIC 250NGK CR8EB 0.7-0.8 MM
APRILIAATLANTIC 250 I.E.NGK PMR8B 0.7 MM
APRILIAATLANTIC 300 I.E.NGK CR8EKB 0.7-0.8 MM
APRILIAATLANTIC 500NGK CR7EKB 0.7-0.8 MM
APRILIAATLANTIC 500 SPRINTNGK CR7EKB 0.7-0.8 MM
APRILIACAPONORD 1200NGK CR8EKB 0.6-0.7 MM
APRILIACAPONORD 1200 RALLYNGK CR8EKB 0.6-0.7 MM
APRILIACLASSIC 125NGK BR8ESNGK BR8EIX0.8 MM
APRILIADORSODURO 900 (EURO 4)NGK CR8EKBNGK CR8EIX 
APRILIADORSODURO SMV 1200NGK CR9EKBNGK CR9EIX0.7 MM
APRILIADORSODURO SMV 750NGK CR7EKBNGK CR7EIX0.6-0.7 MM
APRILIAETV 1000 CAPONORDNGK DCPR9ENGK DCPR9EIX0.7 MM
APRILIAETX 125 ENDURONGK BR8ESNGK BPR8EIX0.5-0.6 MM
APRILIAETX 350 TUAREGNGK D8EANGK DR8EIX0.6-0.7 MM
APRILIAGULLIVER 50 LCNGK BR8HSNGK BR8HIX0.7 MM
APRILIAHABANA 125NGK CR7E 0.7-0.8 MM
APRILIAHABANA 50 / CUSTOMNGK BPR8HSNGK BPR8HIX0.6-0.7 MM
APRILIALEONARDO 125NGK CR8ENGK CR8EIX0.7 MM
APRILIALEONARDO 150NGK CR8ENGK CR8EIX0.7 MM
APRILIALEONARDO 250NGK DR8EANGK DR8EIX0.7 MM
APRILIALEONARDO 300NGK DR7EA0.6 MM
APRILIAMANA 850 (NA 850 MANA)NGK CR7EKBNGK CR7EIX 
APRILIAMANA 850 GT (NA 850 MANA GT)NGK CR7EKBNGK CR7EIX 
APRILIAMOJITO 125   
APRILIAMOJITO 125 CUSTOMNGK CR7EB  
APRILIAMOJITO 50 (2-T)   
APRILIAMOJITO 50 CUSTOMNGK BR10ESNGK BR10EIX0.6 MM
APRILIAMOTO 6.5NGK D8EANGK DR8EIX0.6-0.7 MM
APRILIAMX 125 SUPERMOTONGK BR8ESNGK BR8EIX0.8 MM
APRILIAPEGASO 125NGK B10EG 0.5-0.6 MM
APRILIAPEGASO 600NGK D8EA. D8ERNGK DR8EIX0.6-0.7 MM
APRILIAPEGASO 600NGK D8EANGK DR8EIX0.6 MM
APRILIAPEGASO 650NGK D8EANGK DR8EIX0.6-0.7 MM
APRILIAPEGASO 650NGK D8EANGK DR8EIX0.5 MM / 0.6-0.7 MM
APRILIAPEGASO 650 I.E.NGK DR8EBNGK DR8EIX0.7 MM
APRILIAPEGASO 650 I.E. FACTORYNGK CR7ENGK CR7EIX0.7-0.8 MM
APRILIAPEGASO 650 I.E. STRADANGK CR7ENGK CR7EIX0.7-0.8 MM
APRILIAPEGASO 650 I.E. TRAILNGK CR7ENGK CR7EIX0.7-0.8 MM
APRILIARALLY 50 ACNGK BR7HSNGK BR7HIX0.5 MM
APRILIARALLY 50 LCNGK BR8HSNGK BR8HIX0.6-0.7 MM
APRILIARED ROSE 125NGK B10EGNGK BR10EIX0.5-0.6 MM
APRILIARED ROSE 125NGK B10EGNGK BR10EIX0.5 MM
APRILIARED ROSE 50NGK B9ESNGK BR9EIX0.5 MM
APRILIARED ROSE CLASSICNGK B9ESNGK BR9EIX0.5-0.6 MM
APRILIARS 125   
APRILIARS 125 (EURO 4)NGK CR9EBNGK CR9EIX 
APRILIARS 125 EXTREMANGK BR10EG 0.6 MM
APRILIARS 125 REPLICANGK BR10EG 0.5 MM
APRILIARS 125 REPLICANGK BR10EG 0.8 MM
APRILIARS 250NGK BR9ECM 0.7-0.8 MM
APRILIARS 250NGK BR9ECM 0.7-0.8 MM
APRILIARS 50 EXTREMANGK B8ESNGK BR8EIX0.5 MM
APRILIARS4 125 / REPLICANGK CR9EBNGK CR9EIX0.7 MM
APRILIARST 1000 FUTURANGK DCPR9ENGK DCPR9EIX0.7 MM
APRILIARSV 1000 RNGK DCPR9ENGK DCPR9EIX0.7 MM
APRILIARSV 1000 R FACTORYNGK DCPR9ENGK DCPR9EIX0.7 MM
APRILIARSV 1000 R / RR / FACTORYNGK DCPR9ENGK DCPR9EIX0.7 MM
APRILIARSV MILLENGK DCPR9ENGK DCPR9EIX0.7 MM
APRILIARSV MILLENGK DCPR9ENGK DCPR9EIX0.7 MM
APRILIARSV MILLE RNGK DCPR9ENGK DCPR9EIX0.7 MM
APRILIARSV MILLE SPNGK R0045Q-10  
APRILIARSV4 1000 RR   
APRILIARSV4 1100 FACTORY   
APRILIARSV4 FACTORY (APRC / ABS)NGK CR9EKBNGK CR9EIX0.7-0.8 MM
APRILIARSV4 R (APRC / ABS)NGK CR9EBNGK CR9EIX0.7-0.8 MM
APRILIARSV4 RF (EURO 4)NGK CR9EKBNGK CR9EIX 
APRILIARSV4 RRNGK CR9EKBNGK CR9EIX 
APRILIARSV4 RR (EURO 4)NGK CR9EKBNGK CR9EIX 
APRILIARSV4 / FACTORYNGK CR9EBNGK CR9EIX0.7 MM
APRILIARX 125 ABSNGK CR8ENGK CR8EIX 
APRILIARXV 450NGK CR8EKBNGK CR8EIX 
APRILIARXV 550NGK BR8EB 0.7-0.8 MM
APRILIASCARABEO 100 4T   
APRILIASCARABEO 125NGK CR8EB 0.6-0.7 MM
APRILIASCARABEO 125 I.E.NGK PMR9B 0.7 MM
APRILIASCARABEO 125 / GT / STREETNGK CR8EBNGK CR8EIX0.6 MM
APRILIASCARABEO 150 / GT (ROTAX MOTOR)NGK CR8ENGK CR8EIX0.6 MM
APRILIASCARABEO 200 / GT / I.E.NGK CR8EB (BIS 08)NGK PMR9B (From 09)0.7-0.8 MM
APRILIASCARABEO 250NGK CR8EBNGK CR8EIX0.7 MM
APRILIASCARABEO 300 SPECIALNGK CR8EKB0.7 MM
APRILIASCARABEO 400 / I.E.NGK CR7EKB0.8 MM
APRILIASCARABEO 50NGK BR7HS (93-03)NGK CPR8E (00-04)0.5-0.6 MM
APRILIASCARABEO 50  4TNGK PMR7A 0.7 MM
APRILIASCARABEO 50  4TNGK ER9EH-N 0.6-0.7 MM
APRILIASCARABEO 50  4TNGK CR9EBNGK CR9EIX0.6 MM
APRILIASCARABEO 500NGK CR7EKB 0.8 MM
APRILIASCARABEO 500 I.E.NGK CR7EKB0.7-0.9 MM
APRILIASHIVER 750 GTNGK CR7EKBNGK CR7EIXGEM.ANGABE APRILIA
APRILIASHIVER 750 SLNGK CR7EKBNGK CR7EIXGEM.ANGABE APRILIA
APRILIASHIVER 900 (EURO 4)NGK CR8EKBNGK CR8EIX 
APRILIASL 1000 FALCONGK DCPR9ENGK DCPR9EIX0.6-0.7 MM
APRILIASONIC AC / LC 50AC: NGK BR7HSLC: NGK BR8HSAC:0.5MM / LC:0.6MM
APRILIASPORTCITY 125   
APRILIASPORTCITY 200NGK CR8EBNGK CR8EIX0.8 MM
APRILIASPORTCITY 250IENGK PMR8B 0.7 MM
APRILIASPORTCITY CUBE 125NGK CR8EBNGK CR8EIX0.8 MM
APRILIASPORTCITY CUBE 300   
APRILIASPORTCITY ONE 125NGK CR7EB  
APRILIASPORTCITY ONE 50 (4-Stroke)NGK CR8EB 0.7 MM
APRILIASR 125NGK BR8ESNGK BR8EIX0.6 MM
APRILIASR 125 MOTARDNGK CR7EB 0.7-0.8 MM
APRILIASR 150NGK BR9ESNGK BR9EIX0.6 MM
APRILIASR 50 ACNGK BR7HSNGK BR7HIX0.7 MM
APRILIASR 50 DITECHNGK CPR8E 0.6 MM
APRILIASR 50 LCNGK BPR8HSNGK BPR8HIX0.7 MM
APRILIASR 50 LCNGK BR8HS 0.5-0.6 MM
APRILIASR 50 MOTARDNGK BR8ESNGK BR8EIX 
APRILIASR 50 RNGK BR9ES 0.6 MM
APRILIASR 50 R FACTORYNGK CPR8E 0.6 MM
APRILIASR MAX 125 I.E.NGK CR8EKB  
APRILIASR MAX 300 I.E.NGK CR8EKB0.7 – 0.8 MM
APRILIASRV 850 / ABSNGK CR7EKB 0.7-0.9 MM
APRILIASX 125 ABS 4TNGK CR8ENGK CR8EIX 
APRILIASX 125 SUPERMOTONGK BR10EGNICHT VERFÃœGBAR0.5 MM
APRILIASX 50 (2-Stroke-Oil)NGK BR8ES 0.6-0.7 MM
APRILIASX 50 (2-Stroke-Oil)NGK BR8ES 0.6-0.7 MM
APRILIASXV 450 SUPERMOTONGK CR8EKBNGK CR8EIX 
APRILIASXV 550 SUPERMOTONGK CR8EB 0.7-0.8 MM
APRILIATUAREG WIND 600NGK D8EANGK DR8EIX0.6-0.7 MM
APRILIATUAREG WIND 600NGK D8EANGK DR8EIX0.5 MM
APRILIATUONO 1000NGK DCPR9ENGK DCPR9EIX0.7 MM
APRILIATUONO 1000 RNGK DCPR9ENGK DCPR9EIX0.7 MM
APRILIATUONO 1000 R FACTORYNGK DCPR9ENGK DCPR9EIX0.6-0.7 MM
APRILIATUONO 125 (EURO 4)NGK CR8ENGK CR8EIX 
APRILIATUONO V4 1100 FACTORYNGK CR9EIXNGK CR9EKB 
APRILIATUONO V4 1100 FACTORY (EURO 4)NGK CR9EIXNGK CR9EKB 
APRILIATUONO V4 1100 RRNGK CR9EKBNGK CR9EIX 
APRILIATUONO V4 1100 RR (EURO 4)NGK CR9EKBNGK CR9EIX 
APRILIATUONO V4 1100 RR / FACTORYNGK CR9EKB 0.7-0.8 MM
APRILIATUONO V4RNGK CR9EKBNGK CR9EIX0.7 MM

Reading your spark plug

spark plug colour guide 411x305 - Aprilia Spark Plug Fitment Chart

The image of the spark plugs above shows four common conditions that you’ll find your spark plugs in. From left to right the plugs are Normal, Rich, Lean and Very Lean. Full descriptions below.

Before you throw your old spark plug in the bin, check them to get an understanding of how well your engine is running.

Normal condition

If the plug is brown or light grey your can assume your engine is in good condition and the spark plug is functioning well. Even when a plug is in good condition small deposits will accumulate. This is normal.

Rich

There are many different causes of spark plug fouling. If the plug has oil on it, then it’s oiling up and may not work efficiently, potentially causing a misfire or stuttering under hard acceleration. If it’s just dark or black the bike could be running too rich. A heavy accumulation of carbon on the nose can cause a leakage path to earth. This can cause misfires and poor engine starting.

Causes: The causes of this can be anything from, a rich fuel mixture, too much choke, long periods of low-speed riding or idling in traffic, a blocked air filter or the plug’s heat range is too cold.

Lean

If the engine is running lean then the spark plug has a grey colour but you’ll probably see some black deposits on there too.

Causes: Insufficient cooling, blocked injectors, too lean a fuel mixture

Very Lean

If the engine is running dangerously lean the whole plug tip will be grey or white. If the temperature is over 850-degrees, pre-ignition may occur. Engine power will be reduced and you risk piston damage.

Causes: Insufficient cooling, blocked injectors, too lean a fuel mixture, ignition timing too far advanced, excessive combustion chamber deposits.

Motorcycle Spark Plug Fitting Guide + Tips

  • When you’ve removed your spark plugs, check the condition of the threads in the cylinder head and put a cloth over the cylinder head if you’re going to leave it exposed.

  • Install each spark plug by hand until you have wound the thread a couple of turns. This reduces the chances of you cross-threading the plug.

  • Torque the spark plug up to your manufacturer’s recommended settings. If you don’t have a torque wrench, then get the plug hand tight and then add a ½ turn for a plug with a gasket, and more like a ¼ turn for a tapered spark plug. Over-tightening can snap the spark plug – a nightmare.

  • Don’t put any lubricant or thread lock on the spark plug. Inspect your spark plug caps and replace if required.

Iridium Spark Plug vs Standard

A regular spark plug uses a copper central electrode whereas an iridium spark plug uses, you guessed it, iridium.

The metal in a spark plug has a single purpose: to channel the electrical energy through the spark plug. Iridium is far harder than copper and this allows the spark plug manufacturers to create a plug with a sharper ‘tip’ which better focuses the spark around the centre electrode without compromising its service life.

A typical copper spark plug will last around 20,000 miles and most get changed at a major service (usually around 16,000 miles) but an iridium spark plug will be good for around 50,000 miles and you do see people running them to 100,000 miles with no issues.

Copper is generally seen as being the best metal to use in terms of conductivity but iridium plugs are seen as premium as they last longer than standard plugs and can be built with smaller tolerances. Iridium spark plugs also have lower voltage requirements, meaning they perform better when starting and idling and some manufacturers also claim they offer a better throttle response.

Iridium plugs are more expensive than copper but seeing as they last longer and offer a more consistent performance throughout their lifetime, many bikes opt for an iridium ‘upgrade’.

Spark Plug Removal

 

halfords socket set 500x202 - Aprilia Spark Plug Fitment Chart

If you’re going to be doing any sort of work on the bike, treat yourself to a decent set of tools. Most of mine are from the Halfords Advanced range (formerly called Professional).

They have a lifetime guarantee and for an amateur bodger like me, they’re perfect.

The image above shows their 100pc range, which costs around £125. It’s a comprehensive bit of kit and includes a 1/4″, 3/8″ and 1/2″ drive, alongside plug sockets, universal joints and a wobble bar. Pretty much everything you’ll ever need for any motorcycle maintenance job.

Motorcycle Spark Plug Removal Tools

If you’ve not changed your plugs before, give yourself a couple of hours to complete the task. Here are the essentials you need for smooth re-plugging:

Your owner’s manual
You’ll need this to help you find the location of your spark plugs and how to access them. This may sound simple but often the manual offers up some time-saving tips for your particular model.

A spark plug socket
You’ll need a deep socket. A decent tool kit will have them. Don’t get confused between thread size and socket size. Motorcycle spark plug socket sizes are usually 16mm, 18mm or 20.6mm (21mm will do). Whereas the threads are usually 10mm, 12mm or 14mm. When it comes to motorcycles, access is usually tricky, so my tip is to buy a magnetic spark plug socket like this one. Once you’ve undone your old plug, this will help you remove it with far less effing and jeffing.

A wobble socket / universal joint
You’ll be lucky if there’s a straight line to your spark plug, so a universal joint will get you the angle you need to apply some torque. Again, a decent toolset will have one.

A 3/8″ drive
You could buy a specific spark plug T-bar but your home tool kit will have the drive you need to connect to your plug sockets.

A spark plug gap gauge
This nifty little tool only costs a few quid and will help you set the correct gap for your spark plug. However, modern plugs are almost all motorcycle-specific fit and so they come ‘pre-gapped’ and you won’t need to touch them. If you’re running a classic bike, you’ll probably need to set your gap and if your bike’s not running right, a gap tool can help you rule out a potential incorrect gap issue.

A torque wrench
It’s important to properly torque your spark plugs. Too tight and you’ll risk snapping it or it will be a mission to remove. Too loose and you risk an electrical short. Your owner’s manual will have the correct torque settings.

Motorcycle Spark Plug FAQ

What are the common motorcycle spark plug sizes?
Thread diameters of 10mm, 12mm, and 14mm are the most common. In fact, when it comes to motorcycles, it's rare to find any other sizes in use.

How long should a spark plug last?
Motorcycle spark plugs usually last around 16,000 miles, or at least this is when most manufacturer service schedules recommend you change them. That's typically once every other major service. However if you use Iridium spark plugs they will last a lot longer, usually well over 30,000 miles.

How do you clean motorcycle spark plugs?
Just remove the plug and use a wire brush to gently brush off any deposits on the electrode. Don't use a power tool, by hand is all that's required.

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