Honda-SOHC

SOHC.co.uk Forums => CB750 => Topic started by: bluemouse1006 on March 07, 2013, 05:28:38 PM

Title: NGK spark plug problems
Post by: bluemouse1006 on March 07, 2013, 05:28:38 PM

Just bought some iridium NGK plugs for my CB750 K5 to try and help with the cold start probs
Anyone had any experiences with these are they compatable ?
Seems my bike runs very badly and floods with these in and when I put the normal ones in it runs a lot better !
These plugs are 4x more expensive as well !!

Any feed back much appreciated

Will be sending them back if they are no good for the old gal

Cheers

Amos  :)

Title: Re: NGK spark plug problems
Post by: hairygit on March 07, 2013, 05:31:52 PM

What plugs are you trying?

Title: Re: NGK spark plug problems
Post by: bluemouse1006 on March 07, 2013, 06:25:28 PM

NGK IRIDIUM IX SPARK PLUGS
Same number on plug but has an extra x in the number ??

Title: Re: NGK spark plug problems
Post by: totty on March 07, 2013, 08:14:53 PM

I run iridium plugs in my 550 without any problems, but no notable benefit either.

They make a big difference in my monkey bike, it runs a large carb to maximise top end and needs to run a rich idle, iridium plugs seem resistant to fauling.

Title: Re: NGK spark plug problems
Post by: Bryanj on March 08, 2013, 05:57:51 AM

I would suspect something not quite right in the ignition circuit if standards run better, possibly carb tune