NC24 Plugs

[Sasakura]

Looking on here, found a thread that said CR7EH-9 were good for cold climates but CR8EH-9 are the standards. How cold does it need to be for the 7s to be the better option?

[Weno92]

Not entirely sure as to how cold but im in UK and im running CR8EH-9's and there just fine for the UK not had a problem with the plugs

[thunderace]

You won't need 7s in the UK. Apart from which, have you tried buying any? Rocking horse poo is easier to get.

CR8s you can get all day long but be warned, they're around £6 per plug TRADE price.

[Neosophist]

You won't need 7s in the UK. Apart from which, have you tried buying any? Rocking horse poo is easier to get.

CR8s you can get all day long but be warned, they're around £6 per plug TRADE price.

That's expensive

C8EH9's are around 6gp a plug (there non-resistor plugs)

CR8EH9's (resistor plugs) are around 4.50gbp each from local bike shop (you can find them on ebay for 4.98 (I just check, uk_bulb_co)

Non resistor plugs are the standard for the bike.

Spark Plug (NGK C8EH9) - 6gbp each from DSS (NOTE there not R) plugs.

As for plugs

For many years, auto makers and mechanics recommended hot spark plugs for vehicles that primarily were driven slowly and for short distances, and cold spark plugs for automobiles driven on long distances and sustaining high speed highway use.

To get a true plug color reading you must run the engine,on a level road, at the throttle setting that you want to test, for about a mile, then kill the ignition, pull the clutch in and coast to a stop. Then pull the plug and look at it. This could be a real thrill on most of the newer street bikes.

As the engine ages and more oil gets past the rings a hotter plug may be in order. If you ride at low speeds all the time a hotter plug will keep the plugs from fouling. If high speeds are your thing, a cooler plug may be just the ticket. Don't be afraid to pull that plug out and give 'er a read!

For most circumstances, even mostly fast highway use the standard 8 range plugs are fine.

[phil x]

I have a set of 4 brand new boxed CR8EHIX-9 (Iridium) that I bought by mistake (doh!) £20 posted if you are interested.

Phil