Not too lucky with my 109R2
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Thread: Not too lucky with my 109R2

  1. #1

    Default Not too lucky with my 109R2

    Ive been part of this group for a while but finally I purchased a 08 M109R2. The price was good so I drove for 12 hours to pick it up. Did a few changes to it new tires Chrome stuff some lights and finally I are used it for about 500 miles and it started knocking bad, the next 500 miles he got really really bad so I had to rebuild my engine and this is the progress


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    Last edited by jorge350z; 3 Weeks Ago at 08:20 PM.

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  3. #2

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    More pics
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  4. #3

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    two more
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  6. #4
    Very Active Member Sasnuke's Avatar
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    Sorry to hear you're having some rotten luck. I literally have the same bike (except in black), so I hope this is just from the previous owners neglect.
    Any idea what caused the wear in the bores? The pics are a little small to tell.

    Nice Mini btw...old shcool...love it!
    2008 M109R2 Black - Flat black rims, Smoked turn signals, K&N Replacement filters, 2006 Exhaust Debaffled, & HealTech GiPro A-TRE G2.

  7. #5

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    It looks like at one point they had oiling issues


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  8. #6

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    Yes the mini is 72 old school. a project of mine for the last five years Im installing a K20a


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  9. #7
    Very Active Member Sasnuke's Avatar
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    Quote Originally Posted by jorge350z View Post
    Yes the mini is 72 old school. a project of mine for the last five years Im installing a K20a


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    That thing is gonna motor like a bat out of hell!!
    You're gonna need some suspension and brakes to keep that thing under control.
    2008 M109R2 Black - Flat black rims, Smoked turn signals, K&N Replacement filters, 2006 Exhaust Debaffled, & HealTech GiPro A-TRE G2.

  10. #8
    Very Active Member NoSetFine's Avatar
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    Holy cow. So sorry to hear/see that poor previous maintenance! Is that truly fixable?


  11. #9
    Very Active Member Hogan109r's Avatar
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    That looks like the same jug , two different shots.
    can you get a pic of the 2 spark plugs for that cylinder
    Bottom side.
    and a pic of top of that piston Thanks
    Last edited by Hogan109r; 3 Weeks Ago at 12:22 AM.

  12. #10

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    Quote Originally Posted by Hogan109r View Post
    That looks like the same jug , two different shots.
    can you get a pic of the 2 spark plugs for that cylinder
    Bottom side.
    and a pic of top of that piston Thanks
    Not really, spark plugs are all in a box. Really dont know which is which anymore


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  13. #11

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    Two jugs


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  14. #12
    Very Active Member Hogan109r's Avatar
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    Quote Originally Posted by jorge350z View Post
    Not really, spark plugs are all in a box. Really don’t know which is which anymore


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    Good luck with your build.
    The reason I look at Top of pistons was for detonation marks
    I See some in the cylinders.Looks like your engine had been
    running. Super lean.
    was waiting for Matt to chime in he is a expert. Or thevili
    Also the high shiny marks may indicate to much oil Did it ever puke out left side.
    What do you think caused this. If the problem isn’t fix will happen again
    I bet the spark plugs are white from to much heat and that could of
    melted rings to pistons!
    Last edited by Hogan109r; 3 Weeks Ago at 06:36 PM.

  15. #13
    Very Active Member Hogan109r's Avatar
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  17. #15

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  18. #16
    Very Active Member Sasnuke's Avatar
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    Nice progress...it's looking pristine there.
    Did you stick with the current clutch or upgrade to the 2011+ newer clutch?
    2008 M109R2 Black - Flat black rims, Smoked turn signals, K&N Replacement filters, 2006 Exhaust Debaffled, & HealTech GiPro A-TRE G2.

  19. #17

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    I kept the original clutch. I replaced crank and piston bearings, both jugs, pistons and piston rings,


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  20. #18
    Very Active Member Stavros's Avatar
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    Quote Originally Posted by jorge350z View Post
    I kept the original clutch. I replaced crank and piston bearings, both jugs, pistons and piston rings,


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    you beef up the tranny while you got it apart ? might as well make it bulletproof ,back cut the gears
    Stav

  21. #19

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    Nah. Im not gonna waste anymore time working on this engine. The Little that I drove it didnt notice any problem with second gear.


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  22. #20

    Default Not too lucky with my 109R2

    All done!! I just need to replace the radiator fan.


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