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Thread: 1973 Suzuki TM250 replica

  1. #16
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    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/
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  2. #17
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    1st October 2005 - 23:01
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    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
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  3. #18
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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
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    1st May 2016 - 13:54
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    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
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    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.

  6. #21
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    I gave up on the idea of the Chinese shocks for that very same thing and the coils are like 10mm thick.


    Anyhow the bike is almost done, I just need inner tubes + rim tapes and a rear tire, the seat needs the new cover put on, I made the base and foam.


    I cannot find a rear sproket, needs to be a #525 with 45 teeth with a 72mm center hole and 96mm bolt circle, not relay fussed about the bolt as I can weld up or re drill machine things. also I cannot find the right twist grip throttle.

  7. #22
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    28th May 2006 - 19:35
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    Quote Originally Posted by rudolph View Post
    I gave up on the idea of the Chinese shocks for that very same thing and the coils are like 10mm thick.


    Anyhow the bike is almost done, I just need inner tubes + rim tapes and a rear tire, the seat needs the new cover put on, I made the base and foam.


    I cannot find a rear sproket, needs to be a #525 with 45 teeth with a 72mm center hole and 96mm bolt circle, not relay fussed about the bolt as I can weld up or re drill machine things. also I cannot find the right twist grip throttle.
    what model bike are you looking for to supply it? and year

  8. #23
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    28th May 2006 - 19:35
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    Part # = 57100-28010
    Part Description = GRIP ASSEMBLY,THROTTLE
    Model Count = 17
    RV125K 1973 123 RV125 TRACKER DUAL SPORT
    RV125L 1974 123 RV125 TRACKER DUAL SPORT
    TC125J 1972 123 TC125 PROSPECTOR DUAL SPORT
    TC125K 1973 123 TC125 PROSPECTOR DUAL SPORT
    TC125L 1974 123 TC125 PROSPECTOR DUAL SPORT
    TS125J 1972 123 TS125 DUSTER DUAL SPORT
    TS125K 1973 123 TS125 DUSTER DUAL SPORT
    TS125L 1974 123 TS125 DUSTER DUAL SPORT
    TS125R 1971 123 TS125 DUSTER DUAL SPORT
    TS185J 1972 183 TS185 SIERRA DUAL SPORT
    TS185K 1973 183 TS185 SIERRA DUAL SPORT
    TS185L 1974 183 TS185 SIERRA DUAL SPORT
    TS185R 1971 183 TS185 SIERRA DUAL SPORT
    TS250J 1972 246 TS250 SAVAGE DUAL SPORT
    TS250K 1973 246 TS250 SAVAGE DUAL SPORT
    TS250L 1974 246 TS250 SAVAGE DUAL SPORT
    TS250R 1971 246 TS250 SAVAGE DUAL SPORT

  9. #24
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    Quote Originally Posted by jellywrestler View Post
    Part # = 57100-28010
    Part Description = GRIP ASSEMBLY,THROTTLE
    Model Count = 17
    RV125K 1973 123 RV125 TRACKER DUAL SPORT
    RV125L 1974 123 RV125 TRACKER DUAL SPORT
    TC125J 1972 123 TC125 PROSPECTOR DUAL SPORT
    TC125K 1973 123 TC125 PROSPECTOR DUAL SPORT
    TC125L 1974 123 TC125 PROSPECTOR DUAL SPORT
    TS125J 1972 123 TS125 DUSTER DUAL SPORT
    TS125K 1973 123 TS125 DUSTER DUAL SPORT
    TS125L 1974 123 TS125 DUSTER DUAL SPORT
    TS125R 1971 123 TS125 DUSTER DUAL SPORT
    TS185J 1972 183 TS185 SIERRA DUAL SPORT
    TS185K 1973 183 TS185 SIERRA DUAL SPORT
    TS185L 1974 183 TS185 SIERRA DUAL SPORT
    TS185R 1971 183 TS185 SIERRA DUAL SPORT
    TS250J 1972 246 TS250 SAVAGE DUAL SPORT
    TS250K 1973 246 TS250 SAVAGE DUAL SPORT
    TS250L 1974 246 TS250 SAVAGE DUAL SPORT
    TS250R 1971 246 TS250 SAVAGE DUAL SPORT
    I gave away the original throttle as it had the switches for lights etc in it, I was trying to find one suitable for a MX bike with the cable coming out the bottom witch is hard now days with no bike shops.

  10. #25
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    Quote Originally Posted by rudolph View Post
    I gave away the original throttle as it had the switches for lights etc in it, I was trying to find one suitable for a MX bike with the cable coming out the bottom witch is hard now days with no bike shops.
    Pretty much every bike shop has a CR or XR throttle assembly
    why does it need to be cable out the bottom?
    Trademe has 2000 listing for throttles
    under $20 delivered
    https://www.trademe.co.nz/motors/mot...2419462843.htm

    https://www.trademe.co.nz/motors/mot...2411621569.htm
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  11. #26
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    Quote Originally Posted by husaberg View Post
    Pretty much every bike shop has a CR or XR throttle assembly
    why does it need to be cable out the bottom?
    Trademe has 2000 listing for throttles
    under $20 delivered
    https://www.trademe.co.nz/motors/mot...2419462843.htm

    https://www.trademe.co.nz/motors/mot...2411621569.htm
    My throttle cable all ready has a 90 bend on the throttle end, a throttle with it coming out the side would make it do a U turn lol, I found an OK plastic one for $15, its nicer than the Mangura unit I had on my Honda

  12. #27
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    Tank decals are still on the way. Just need a rear tire and chain and sprockets, rear sprocket is proving to be very hard to find, I want to use a 50 tooth #525 I may have to make some kind of adapter to use a sprocket of another bike as blank sprockets are horrendously expensive.

    If anyone has a good used 100 100 18 or a 120 100 18 knobby I will take it off your hands, also a used 525 chain I can run for a bit on my old sprockets. I use to love working in the bike shop in about 2000, the customer would want a new chain or tire and didn't want to keep the old one so it would end up on one of my bikes witch was all ways something that had been abandoned in the workshop, I got this XS650 for the $300 owing on it, rode it all over NZ when I was 18.
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  13. #28
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    20th January 2010 - 14:41
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    http://www.jtsprockets.com/catalogue/model/2440/

    http://www.jtsprockets.com/catalogue/

    Not sure why anyone would want to use a 535 chain though?
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  14. #29
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    Quote Originally Posted by husaberg View Post
    http://www.jtsprockets.com/catalogue/model/2440/

    http://www.jtsprockets.com/catalogue/

    Not sure why anyone would want to use a 535 chain though?
    I tried JT sprockets 1st but they have nothing, you mean 525 chain? Suzuki liked to use it in the 70s

  15. #30
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    Quote Originally Posted by rudolph View Post
    I tried JT sprockets 1st but they have nothing, you mean 525 chain? Suzuki liked to use it in the 70s
    on my link was imo the exact sprocket you asked for. its listed as funny enough a TM250 for off road or a ts250 for road.
    pretty sure you measured the PCD wrong.

    http://www.jtsprockets.com/catalogue/model/2440/
    http://www.jtsprockets.com/catalogue/model/1953/
    http://www.jtsprockets.com/catalogue/sprocket/JTR813/

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    Quote Originally Posted by rudolph View Post
    I gave up on the idea of the Chinese shocks for that very same thing and the coils are like 10mm thick.
    I cannot find a rear sprocket, needs to be a #525 with 45 teeth with a 72mm center hole and 96mm bolt circle, not relay fussed about the bolt as I can weld up or re drill machine things.
    RE the chain just use a std common size that is freely available now choose the spokets to suit.
    if you cant find a sprocket to suit just thin down the sprocket .

    this is one that has 42t and 520 off the shelf
    http://www.jtsprockets.com/catalogue/model/1946/
    used on these models
    http://www.jtsprockets.com/catalogue/sprocket/JTR820/
    try searching for 45t for these bikes
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

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