help please

Discussion in 'The Workshop' started by jacksp, Mar 24, 2007.

  1. jacksp

    jacksp New Member

    Messages:
    1,643
    right...
    well last night i was riding home at about 50mph when my bike started playing up...

    well basically, it kept "dying" like the engine was being switched off :???: and would just bog down, then it went back to normal....

    and kept reeating this on my way home

    then it just conked out about 10 minutes from my house and wouldnt start, ( and sounded like it werent sparking)

    so today i got a new plug...

    fitted it, and it started up first time!!, but havent rode i yet because i dont like the look of my old spark plug!! :confused:hock:

    there seem to be metal balls around the electrode fingy in the middle of the spark plug!!

    [​IMG]

    (btw they are both the same spark plugs, code: BR9ES which i have had in it since iv had the bike!

    any help would be much appreciated
    cheers
     
  2. climax

    climax Member

    Messages:
    259
    Rides:
    2x Italjet Dragsters
    ive got the same prob, people were sayin its the wrong plug or coil fucked
     
  3. jacksp

    jacksp New Member

    Messages:
    1,643
    :wtf: i have the right plug....
     
  4. px166bajaj

    px166bajaj Active Member

    Messages:
    1,367
    How old was the plug?
     
  5. jacksp

    jacksp New Member

    Messages:
    1,643
    i had it in there since saturday :msn1:
    and the plug before that, i had in there for months!!!!
     
  6. jacksp

    jacksp New Member

    Messages:
    1,643
    clearer pic for anyone...

    [​IMG]
     
  7. Nrg-Jay

    Nrg-Jay New Member

    Messages:
    302
    Looks like bits of bearing to me but not 100%, when you put this plug in did you look at the bottom while checking the elec gap ? with feeler guage ?
     
  8. tErr0

    tErr0 Administrator Staff Member

    Messages:
    5,816
    Get the head off and have a look. That's not part of the plug. :msn1:
     
  9. jacksp

    jacksp New Member

    Messages:
    1,643
    yer exactly what im thinking terro :msn1:

    me and monty will take it off tomorrow and investiagte :cool:
     
  10. Major Rel14b1lty

    Major Rel14b1lty New Member

    Messages:
    929
    im proberly complety wrong and going to make a fool out of my self, but could the piston head be melting then going into the plug and setting into metal balls?
     
  11. px166bajaj

    px166bajaj Active Member

    Messages:
    1,367
    It does look like melted metal. I thought that, but couldnt work out whare the metal was coming from.
     
  12. jacksp

    jacksp New Member

    Messages:
    1,643
    yes, i have been told on other forums that the metal balls are fom the crown of my piston :msn1:

    how they melt into balls all the same size is well weird though :wtf:
     
  13. kcnw9

    kcnw9 Member

    Messages:
    628
    maybe they melt and go in there and when they spin around a bit and when they get hot they form a round shape. dunno lol :w00t:

    kcnw9
     
  14. *James*

    *James* New Member

    Messages:
    625
    ohhh look at him getting all technical :w00t: ....next minor confusion :bird:
     
  15. morgan

    morgan Member

    Messages:
    401
    as i don't like SWF i'll post it on here.
    can't be the main bearings, there way to small!
    it also can't be the big or little end bearings as there needle roller bearings ;)

    i'm with the melted metal theory, which would explain the bogging.
    you might have got a little bit of metal in the gap where the balls have formed before you replaced the plug, so when in use they melted forming balls. :wtf:
     
  16. jacksp

    jacksp New Member

    Messages:
    1,643
    you dont like it..yet you go on there..... and quote monty on here :wtf:

    you donut :rofl: :bird:
     
  17. morgan

    morgan Member

    Messages:
    401
    i only posted recently because i couldn't stand buxiboi's stupid posts anymore, and i saw your topic so quoted monty and posted it on here. ;)
     
  18. px166bajaj

    px166bajaj Active Member

    Messages:
    1,367
    I would have thought that main bearings would be bigger?

    Plus how could they get out of the crank in one piece and into the spark plug?

    The crank would be well rattly running without them.
     
  19. Major Rel14b1lty

    Major Rel14b1lty New Member

    Messages:
    929
    buy a colder plug
     
  20. jacksp

    jacksp New Member

    Messages:
    1,643
    well monty took the head off to look at the piston....

    and saw this

    [​IMG]

    [​IMG]

    why would the piston just start breaking like this? :wtf:



    and the barrel has markings on it but is smooth as anything still :wtf:

    [​IMG]
     

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