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#Ngk iridium manual#

However, in practice it can occasionally happen that the desired improvements do not occur in operation.

For almost every NGK standard spark plug there are corresponding NGK Iridium IX spark plugs, which technically bring the advantages mentioned above.

A total of 5 kOhm interference suppression per cylinder is sufficient, more than 10 kOhm can reduce the ignition energy of the spark.

all spark plugs marked with an "R" have an integrated 5 kOhm suppression resistor, which is only necessary if 5 kOhm suppression plugs are not already used.Failure to do so may result in serious damage to your vehicle for which we disclaim all liability and warranty in advance. Only use products and specifications that have been approved for your vehicle.

#Ngk iridium manual#

If your owner's manual is not available, contact your workshop or the motorbike manufacturer. If you cannot find the right spark plug for your vehicle at first go to "My Bike" or have a look at the "Cross Reference List", which can be found under documents.īefore (!) buying and before (!) fitting spark plugs, you must always make sure that the spark plugs you have chosen correspond exactly to the specifications and approvals in the manufacturer's owner's manual for your vehicle.

considerably longer service life compared to standard spark plugs.

counteract fouling in stop-and-go traffic.

better acceleration due to more spontaneous throttle response.

In addition, the service life of NGK Iridium IX spark plugs is at least twice as long as that of standard spark plugs. These spark plugs offer excellent starting behaviour, better acceleration through more spontaneous throttle response, they reduce fuel consumption, counteract sooting in stop-and-go traffic. Iridium IX spark plugs from NGK go one better by ensuring optimum ignition and smooth engine running.

Because as inconspicuous as a spark plug may be, its effect on fuel consumption, willingness to start and the engine's enjoyment of performance is huge. Neverthless our combined experience suggests an (at least low speed) performance improvement by switching from the stock Bosch item to NGK Iridium.Choose Iridium spark plugs from NGK in guaranteed top quality. Let's face it spark plugs are cheap and you only need to buy one and on this bike replacing it is a PITA, so no surprise most people opt for the perceived best option based on price / performance / longevity.īoth myself and other forum members have noted a punchier feel to the low rev performance after fitting an Iridium, although my own fitment came at the same time as a valve clearance adjustment and a DNA air filter so I broke the cardinal rule of scientific testing by changing more than one thing at a time. Plenty of evidence on here (such as in the thread I linked to above) to suggest that the preferred plug (by forum members) is the NGK Iridium. The NGK Iridium is actually available as a genuine KTM part - see link below (although I don't believe they specifically recommend it for our bike, however I suspect that is more to do with cost than suitability - the 390 is a budget bike designed to be cheap to buy, run, and service) : Obviously the indian made plug the bike came with would seem an obvious contender for "the right plug" but that's probably more what KTM's accountants would think than what their engineers might think. There rarely is a right or wrong answer in such matters, just plenty of opinions. Click to expand.lots of info in THIS thread