OK
Bike was running with some x thousand mile Champion RN9YC plugs and running fine. I decided however it was overdue a new set of plugs.
A set of NGK BPR6ES were purchased, gap checked and duly fitted.
I then had a bike the was a cow to start, “missy” and felt that it had suddenly gone way out of balance.
New plugs ripped out and old ones put back and she’s back where she was
Are these engines very sensitive to the plug they use tris2014-04-15 07:44:17
That’s very strange.
I’ve used a variety of plugs in my Cali III and never noticed any difference.
It could be a dodgy plug but that’s not usual with NGK. I’ve always found them to be very reliable.
There have been issues with NGK plugs before I popped new ones into the V11 it ran like it had really got a problem, luckily the first thing I did was swap the plugs back and all was well, took the new plugs back to the shop they replaced them, the guy commented they had got alot of them come back. But I wonder just how many vehicles that had new plugs caused problems that cost the owners an awful lot of dosh.
Same here, some years ago had to chuck new NGK’s in favour of the hitherto used Bosch, it’s like the Bosch ones ‘understand’ that the wasted spark of a Rita system is supposed to be unused, the NGK’s, er, ‘don’t get it’… so lots of spluttering and backfiring… Only try to use Bosch now. Ditto the R80.
Mike H2014-04-15 12:56:07
Funny that. I have had puzzling issues with NGK plugs. I have now fitted their Iridium plugs and so far so good.
I never trust NGK plugs anymore some are great and some not so but I do still use them
NGK Iridium in all mine yet to have a duff one
Iridium… are they really worth all that extra money?
I suspose it depends on usage
I started usin the paladium or was it platinum with the TWO STROKE KETTLES ETC AS I FOUND THEY TRIPPLED THE LIFE and I suppose I just carried on when I bought the Guzzi never worn one out and never had a bad one touch wood
I buy them in 10 packs as the kettle runs fine one same grades
last lot were less than a fiver each
Same problem with a new pair of NGK plugs in my V1000. Packet said “made in France” Took them out and replaced them with the old Champions for now until I get a replacement pair. Any idea what make would be best for a convert.
Mhhhh - so do mine!
Still now got a brand new set of Champions in and normal service has been resumed
I also use iridium plugs it starts alot better and runs fine , have them in both my 1100i 's
Trying Bosch WR78, the ones with four pins in a cross. I’ll try to remember to let you know, but so far it seems cleaner.
I’ve had problems with NGK plugs, mainly on my British bikes, so I try to get the Champion equivalent when possible. According to the Green Spark Plug Co., as modern engines management systems don’t allow the engine to receive fuel if the plug fails, manufacturers stopped coating the inside of the insulator, consequently, now, if it gets wet, it causes the plug to fail. I think I’ve got it right, but search for the GSCo to confirm.
When I bought the hundred bags of bits that eventually were reassembled to make my bike there were dozens of plugs of different makes including some odd ones called twin-fire or similar. It seems the previous owner had suffered plug-doubt too!