Major Stare
|
 posted on 3/6/11 at 07:11 PM |
|
|
Lumpy Idle
Had a lumpy idle on the R1 which has gotten worse since having the engine, especially noticable since the Power Commander and rolling road was
completed 2 weeks ago.
Had a look at the map today and just cant get a smooth tickover.
Took a plug out and a quick call to Andy @ AB with plug part numbers - the engine has NGK Iridium plugs, that should'nt be in the engine as they
are race plugs and need regular changing. They have been in the engine since buying it - so 2.5yrs old and could account for the deteriorating
tickover.
Thanks to Andy who's sorting a "proper" set of plugs.
Gutted another weekend not using the car
Jon "FISH"
|
|
|
|
|
eddie99
|
| posted on 3/6/11 at 07:15 PM |
|
|
We had some of those NGK Iridium plugs go on us at Snetterton on a test day, they seem to be quite troublesome, Glad you got it sorted though!
http://www.elitemotorsporteng.co.uk/
Twitter: @Elitemotoreng
Facebook: http://www.facebook.com/pages/Elite-Motorsport-Engineering/153409081394323
|
NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
|
adithorp
|
| posted on 3/6/11 at 07:27 PM |
|
|
I've just renewed a set of NGK Iridium plugs after 10000miles trouble free use.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
|
|
|
britishtrident
|
| posted on 3/6/11 at 07:34 PM |
|
|
NGK Iridium should be good for the life of the engine even without re-gapping.
Sounds like the plugs were the wrong heat range for the engine or mixture is out.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
|
|
|
Major Stare
|
| posted on 3/6/11 at 07:36 PM |
|
|
quote:
Originally posted by britishtrident
NGK Iridium should be good for the life of the engine even without re-gapping.
Sounds like the plugs were the wrong heat range for the engine or mixture is out.
Nope, Andy checked..... they are definetly the wrong plugs
Jon "FISH"
|
|
|
britishtrident
|
| posted on 3/6/11 at 07:56 PM |
|
|
quote:
Originally posted by Major Stare
quote:
Originally posted by britishtrident
NGK Iridium should be good for the life of the engine even without re-gapping.
Sounds like the plugs were the wrong heat range for the engine or mixture is out.
Nope, Andy checked..... they are definetly the wrong plugs
Thats what i said Wrong heat range = Wrong choice of plug number.
Iridium is the centre electrode tip material which is nothing to do with heat range of the plug.
You have to use plugs of the correct heat range number to match the engine and the conditions of use, if you are using too soft (hot) a plug the
plug will overheat causing the insulation ceramic nose of the plug to breakdown causing a misfire , using too hard (cold) a plug will result in
oil fouling of the plug.
A weak mixture will cause plug to run hotter demanding a harder (colder) plug.
A rich mixture will tend to require a softer (hotter) plug.
Racing plugs tend to be "hard" sometimes called "cold so they don't breakdown under extreme conditions, while plugs for
normal/town/shopping use are softer (hotter) to avoid cold fouling. In the old days racing engines were started on soft plugs and switched to hard
plugs before the car/bike went to the grid.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
|
|
|
britishtrident
|
| posted on 3/6/11 at 08:19 PM |
|
|
This explains it NGK technical info
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
|
|
|
Major Stare
|
| posted on 7/6/11 at 07:09 AM |
|
|
New plugs ordered from Andy & will be fitted this week.
If the lumpy/inconsistant idle doesnt sort itself out, im getting rid
Jon "FISH"
|
|
|
