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Help Pistons & rings - FZR250

Discussion in 'Yamaha 250cc In-Line 4's' started by Willrcr15, Apr 18, 2018.

  1. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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  2. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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  3. Joker

    Joker See "about me" for contact details. Contributing Member

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    Round the corner from me actually. They're reasonably good. City West Yamaha is also good. But most of my components I get from what used to be slipstream performance in Brisbane, or locally through AMX or MCAS.

    If anyone wants a 3LN cam chain, new, I have a forsetti one I'll part with for $40 including postage, same as the one Murdo is showing.
     
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  4. Willrcr15

    Willrcr15 Well-Known Member

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    Thanks, $98 looks good, as long as the 1998 Zeal is the same,
     
  5. Willrcr15

    Willrcr15 Well-Known Member

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    Ill be in that, pm me & ill eft or paypal you
     
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  6. Willrcr15

    Willrcr15 Well-Known Member

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    The 2 bent exhaust valves cant be straightened, has anyone got some they can sell me ?
     
  7. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    *Kawasaki ZXR250C *Yamaha FZR250R 3LN1 *Yamaha FZR400 *Triumph Bonneville 750 T140V *Triumph Daytona 675 *Triumph Tiger 800XC
    It was concluded to be a 3LN1 engine .. yes?

    I have a fully disassembled engine in a box but @Linkin will have to confirm which model it is as he pulled it apart at TAFE ... but the valves are maybe common anyway ...?

    Im away till after the weekend so not able to look ATM
     
  8. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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  9. Joker

    Joker See "about me" for contact details. Contributing Member

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    I have lots but you’ll need to lap/cut them in as they are used.
     
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  10. Willrcr15

    Willrcr15 Well-Known Member

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    Thanks to you all, I only need 2 exhaust for this engine, the head & valves are with the man to be & lapped, Dad, not a mark on any of the seats so no need for a cut. Joker has to post the cam chain so he can add the valves if that's ok & i'll eft some more $$ just let me know how much. I'll also take any shims you have, I know i'm going to need various before I'm done.
    Thanks again for the replies, that makes it much more affordable & another couple of FZR's back on the road/track.
     
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  11. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    The motor I pulled apart at tafe was a 3LN1, the crank & rods went into my 3LN6 engine where they sit now (other issues - apprentice marks etc)

    I can't recall if valves are different between 3LN's but I would hazard guess no they are not.
     
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  12. Willrcr15

    Willrcr15 Well-Known Member

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    I'll report back the results for future reference.
     
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