NGK plugs??

[Johnny4428]

Guys and gals, opinions on NGK plugs. My experience is both good and bad. I’ve had brand new faulty, and some that just weren’t that good to be honest. Too many NGK fakes maybe? I’ve ordered a set of Denso equivilant to try in the 750 see if there’s any difference. Starting and idling not that hot, but runs good right up through the revs when warmed up. Plugs are quite sooty looking after a long run.

[Laverdaroo]

Ive always run Denso's on the VFR with great results. No complaints here. The only time I havent is on the ducati, she alays ran better with the standard plugs and nothing fancy, italian electric componets maybe? Denso are spot on from what evidense Ive had whilsts using them.

[Bryanj]

Thats why i buy my NGK from a local parts store, maybe fractionaly dearer but worth it

[Spitfire]

I've been running Denso plugs in the 750F1 since I overhauled the bike in 2008 and not had any problems, Hondaman recommended tham on the US site and after having problems with NGK's I switched to X22/24's.

Here's a portion of what he said talking about the old NGK D8ES-L.

The closest match to that plug today is the ND X22ES-u. This plug is approximately a "D7.4E" heatrange, where the extended-tip "-L" series plugs ran at D7 temps on their tips, with D8 heatsinking in their seals. The ND plug has a thinner, more extended tip, similar to the "-L" plugs.

I normally run the X24ES-u with regular gas on the highway (midgrade with heavy loads) and the X22ES-U on midgrade for commuting work, when there's lots of idling going on, to keep the plugs cleaner. In cold weather commuting, I use the X22 with regular gas to make it warmer and cleaner.

Cheers

Dennis

[Johnny4428]

That’s interesting guys. I will post results when I get plugs changed and get a descent run. I should do the same Bryan, good advice, must be piles of crap lookalikes out there.