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Thread: 1973 Suzuki TM250 replica

  1. #16
    Join Date
    20th January 2010 - 14:41
    Bike
    husaberg
    Location
    The Wild Wild West
    Posts
    9,934
    Quote Originally Posted by rudolph View Post
    Frame has been blasted and sprayed, those shocks are totally rooted so I am trying to find something, they are 340mm eye to eye and have 12mm eyes, pretty common size, I ground off the step at the bottom of the transfer ports, done this to a few old 2 strokes and it makes a big difference, and cylinder was bored for the new piston, fitted a new rod kit, every bearing in the motor will be replaced.
    just gets the chinese remote res copy Ohlins.
    they can be rebuilt and reworked and resealed.
    plenty about
    http://chrislivengood.net/wp/rfy-shocks-overview/

  2. #17
    Join Date
    1st October 2005 - 23:01
    Bike
    Niftyfifty
    Location
    auckland
    Posts
    524
    I will look into those shocks, I see they are on Ebay for about $100 NZD a pair


    Started putting parts back onto the frame, I may ditch that oil tank for a smaller one, as the TM seat bolts down so its harder to get at the oil filler, I have no idea why I am doing this project, my Harley is in need of a top end rebuild
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  3. #18
    Join Date
    1st October 2005 - 23:01
    Bike
    Niftyfifty
    Location
    auckland
    Posts
    524
    Click image for larger version. 

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    engine is back together with all new parts and is back in the frame, I am only missing a few parts now like a throttle, rim tapes and inner tubes, rear tire. I need a seat foam witch can be made and a seat base I will make. last un restored part is the fuel tank witch I have paint stripped, it needs some acid to get the rust out of the bottom but is otherwise good.

  4. #19
    Join Date
    1st May 2016 - 13:54
    Bike
    Vintage 2T
    Location
    Brisbane
    Posts
    250
    I like how you're working through the TS250, but a bit unsure of your goal.

    I would recommend not putting to much effort in trying to make a full-bore Moto-cross bike out of it.
    It would be fun and reliable for a few outings in VMX, but struggle to be competitive with genuine pre-75 race bikes.

    The TS will have a wide range gearbox suitable for trail & road use not a close ratio racing set.
    The TS will also have a mild steel frame and give away many kg's to the CroMo race frames.

    But... put a Preston Petty headlight on it and an aluminium bash plate to protect your new downpipe and you will have a Great bike for Vinduro and Classic Trail rides, if there are any in your area.

    Cheers, Daryl.

  5. #20
    Join Date
    1st May 2016 - 13:54
    Bike
    Vintage 2T
    Location
    Brisbane
    Posts
    250
    Re: Those Chinese shocks. The thing to look for is the actual piston stroke available.

    A pre-75 bike needs 3.75-4.0" stroke to achieve 4" REAR WHEEL TRAVEL. (allow a bit for the bump stop)
    Later LTR models often need much more.

    The Chinese shocks generally meet the fitment length requirements by extending the bottom alloy mounting.
    They fit OK, but don't provide the travel, (I've seen as little as 2")

    Some are much better than others, I have purchased $100 Chinese shocks for '80's LTR Honda XL's that are really excellent.

    Note: Some VMX organisations do not allow remote reservoir shocks on pre-75 bikes, unless original fitment (eg Yamaha Thermal Flows).

    A set of Koni's from wreckers or a swap meet are a good option, and still rebuildable (Ikon for parts)

    Or spend big bucks from UK or USA for 'modern' VMX race shocks.

    Cheers, Daryl.

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