Chickens XR600 Rebuild

This topic contains 29 replies, has 0 voices, and was last updated by  Mick D 13 years, 3 months ago.

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  • #209907

    Good for another 100.000 k’s hey Chicken. Nice work lefty! I know where to bring the DR when it needs a freshen up. :)

    #213257

    Nice work Lefty. I might have your next project ;)

    #209908

    Brett
    Member

    Well its finished after a slight miscommunication, The Left one has taken her for its maiden ride on Tuesday or Wednesday (I forget) 110km around the local traps, and tells me it pulls like nothin else!!!!!! 👿

    The full break down of parts as follows
    New counter shaft
    New crank and conrod assembly
    New piston
    New full set of gears
    New selector fork
    New clutch basket and heavy duty clutch
    Cylinder head reconditioned
    New cam chain and tensioner and guide
    Bore honed
    Frame cracks repaired
    All I need is the time to pick her up and go for a ride

    I can’t thank Lefty enough for the top job and perfectionist approach to the rebuild, thanks mate ;) ;)
    I would never have gotten round to to doing the job at best it would have been pulled apart and put into the too hard basket
    And thanks TB for droppng it ;)

    #214384

    Mick D
    Member

    Nice work Lefty, I always love when a new engine rebuild fires up for the first time.

    #214391

    Yeah thanks gents. ;)

    The rebuild is complete and i am really happy with it. The engine is now is a 630cc with a New 100mm Wiseco forged piston and ring set. The Cylinder head is a ported large cooling fin type and has been fully reconditioned. It still has the standard cam shaft with the auto decomp removed. Carburettor is a Mikuni with some slight jetting mods to suit the larger capacity. She pulls like a 14yr old with a Playboy eh. :huh: 😆
    The gearbox and clutch assy are all brand new and shift beautifully. I completed around 110km on the big 630 then completed its first oil and filter change ready for delivery. ;)
    Oh! I also fitted an oversize EBC front Disc Rotor and Caliper bracket to better enhance the big girls stopping power. After the bed in period, which I also completed it stops now very well.

    Cheers,
    Lefty

    [attachment=3095]2012-01-11_17-34-25_475.jpg[/attachment]

    #214394

    Mal
    Member

    Nice work Lefty.

    Didn’t happen to put a hydraulic clutch on the big girl? That has to be the heaviest clutch pull ever. :laugh:

    #214400

    Dean
    Member
    mal5.1 wrote:
    Nice work Lefty.

    Didn’t happen to put a hydraulic clutch on the big girl? That has to be the heaviest clutch pull ever. :laugh:

    except for starting off That thing doesnt need a clutch :laugh:

    Ollie

    #214403

    Mick D
    Member

    Hey Lefty, did you weld up the oil port under the auto decomp on the stock cam shaft when you removed it?

    #214404

    Greg
    Member
    micknmeld wrote:
    Hey Lefty, did you weld up the oil port under the auto decomp on the stock cam shaft when you removed it?

    Hey Mick did you share that tip in Sep 2011 when the thread started before he had the whole engine together :dry: :laugh: :pinch: :blink:

    TB

    #214405

    Mick D
    Member

    no but I did share it in a thread that I started about rebuilding Tripper’s top end. it is in the Honda section from memory.

    #209909

    Brett
    Member

    Thats ok Mick, the engine was a running 630 before the rebuild and I bought it because it had gear box problems, we have just rebuilt the engine as it was ;)

    #214422
    Chicken wrote:
    Thats ok Mick, the engine was a running 630 before the rebuild and I bought it because it had gear box problems, we have just rebuilt the engine as it was ;)

    Yes that’s right Chicken. I spoke to Mick earlier about this issue and looked at it when I disassembled and then reassembled the engine. It had the auto decomp previously removed and had absolutely no signs of any camshaft or rocker wear so i believe it will be fine. As i also mentioned earlier i did 110km on a test ride, changed the oil and filter and it was as sweet as.

    Cheers,
    Lefty

    #214401
    mal5.1 wrote:
    Nice work Lefty.

    Didn’t happen to put a hydraulic clutch on the big girl? That has to be the heaviest clutch pull ever. :laugh:

    :laugh: :laugh: :laugh: No Mal but I must agree it is a little heavy. :huh: :huh: I put a Goodridge clutch kit in it complete with springs and a new genuine clutch basket. Having said that it is bearable provided you keep it all lubed up.

    Left

    #214423

    Mick D
    Member

    Hey Lefty,
    Here is the tutorial I did on fitting the XR600 cam chain adjuster that I spoke to you about.

    http://www.obtrailriders.com/index.php?option=com_kunena&func=view&catid=8&id=31216&Itemid=75#31226

    #214395

    chris
    Member

    nice rack, is it an official one or a hand made thing? i could do with some sort of luggage solution on my xr

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