spark plugs

[V_i_c_i]

Standard NGK is enought for this motor. And standards are more bulletproof against overfueling than iridium.

[T 24]

You are correct Vici, iridium plugs are more sensitive to inaccurate fuel injection control. And 14 has inaccurate fuel injection.
Standard NGK plugs will work jus fine.

[miguel quintas]

Guess i'll follow your advice vr4!she's running fine..no reason to change!
Cheers

[T 24]

There is one reason to open or change the plugs after couple of years, is to prevent stuck or damage of threads.

[Tony Nitrous]

There is one reason to open or change the plugs after couple of years, is to prevent stuck or damage of threads.

I pull mine out occasionally just out of interest to check the colour.
Last time I had 4 new ones going in anyway but probably didn't need them.

[grog]

had a big read up on plugs today. iridium only advantage is longer life. they have more resistance than standard plugs. thats it in a nut shell. about all i needed to know.

[Starion VR4]

There is one reason to open or change the plugs after couple of years, is to prevent stuck or damage of threads.

Don't you use Never-Seize or oil or copper paste.. considering they will be in there for 60,000 Km's  +!

[grog]

never seize, coppercote. great products.

[T 24]

There is one reason to open or change the plugs after couple of years, is to prevent stuck or damage of threads.

Don't you use Never-Seize or oil or copper paste.. considering they will be in there for 60,000 Km's  +!

I have used Weicon, Molycote and Thread Eze  anti-seize pastes and I havent had stucked plugs, but I have also opened several stucked plugs from aluminium cylinder heads. That is why I wrote what I wrote.

[Andre]

Workshop manual recommends changing spark plugs every 12000 km (7500 miles). I will stick to that, as I had one plug go really bad, shooting out flames between ceramic and hex and killing the head cover gasket. Happend at 46k. Don't know how long it had been in there as I bought the bike with 44k. Didn't look like fake plugs either.

[Barbastro K6]

I use iridium not resistance denso IU24A.
Works fine