tweak's SR125(2)

Discussion in 'Scooter Projects' started by tweak, Dec 4, 2006.

Page 2 of 5
  1. TangoSR

    TangoSR New Member

    Messages:
    286
    bargain!! ?60 :confused:hock: ..cant wait to see what you do to this one as a project! :D
     
    TangoSR, Dec 18, 2006
    #21
  2. tweak

    tweak Member

    Messages:
    652
    Right, today...



    cleaned out the carb, changed inlet rubber as old one was cracked, swapped seat unit so it locks down, took the back wheel off and wire wheeled the rim edges to seal the tyre and solve the flatty problem, then fitted a spare exhaust I had laying around. Kicked her over and she fired second kick and runs fine, with no piston slap, big-end knocking or rattling mains, not bad for a 10k mile motor!



    So it now wheelies, spins up and powerslides on the yard, but popped the fork seals though due to their age so they need doing (as planned anyway) when the forks get overhauled.
     
    tweak, Dec 19, 2006
    #22
  3. Sr-Man

    Sr-Man New Member

    Messages:
    65
    Ummmm tweak, if ur keepign this till next october can i have first dibs on buying it?
     
    Sr-Man, Dec 19, 2006
    #23
  4. wobbly_trials

    wobbly_trials Active Member

    Messages:
    6,676
    Rides:
    RD350, SR125, ICE125
    he'll have probably done another 3 by then. lol
     
    wobbly_trials, Dec 19, 2006
    #24
  5. Ice70

    Ice70 New Member

    Messages:
    37
    60 What! :wtf: Did you threaten the bloke or something! :D



    I hate you people with cheap 125's, me and me bro were hunting for ages... :eh:
     
    Ice70, Dec 19, 2006
    #25
  6. wobbly_trials

    wobbly_trials Active Member

    Messages:
    6,676
    Rides:
    RD350, SR125, ICE125
    allwe did to it was clean the carb, streighten the handlebar and free the back break and it was ridable again. struck up streight away. ON THE ELECTRIC START after not running for ages
     
    wobbly_trials, Dec 19, 2006
    #26
  7. tweak

    tweak Member

    Messages:
    652
    OK small update, my bike don't like being started on foggy days so I'll start it on a dry sunny day and leave it running... :w00t:



    Just some outlined ideas I currently have for the project:



    -172 kit (bored out to ???cc and piston matched)

    -Extensive porting and timing alteration

    -Watercooled motor with custom twin radiator system

    -Malossi crank, variator, kevlar belt

    -Top Racing Gear-Up Kit

    -C4 Mains and seals

    -Various carbon reed petals

    -Renthals conversion (but Swedish)

    -Front wavy disc (oversized with caliper modification)

    -Rear disc (runner wheel for now :eh: )

    -Polished wheels

    -Paint is all decided but looking for the paint at the moment to put in the spray airgun
     
    tweak, Dec 21, 2006
    #27
  8. Concept

    Concept New Member

    Messages:
    435
    ?60 bargain!

    Its got potential definetly. Good luck with it all.
     
    Concept, Dec 22, 2006
    #28
  9. bEN

    bEN Active Member

    Messages:
    1,133
    Rides:
    Ducati 848
    Looks like your going to town with the new project :punk:



    this is the kind of stuff the european guys do isn't it for sprinting and whatnot :wtf:
     
    bEN, Dec 22, 2006
    #29
  10. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

    Messages:
    14,276
    Rides:
    et2 monster
    only way you can rebore a 172 kit is to use a polini item rather than the nicosil lined malossi item. also as its an iron lining you can use a drop forged piston rather than the weak cast piston you have to use with a nicosil plated barrel. you only need to advance the timing by 1 or 2 degrees max to get the best powerband with a ported barrel (unless your handy with a tig welder as the ports wont allow the kind of work that require drastic timing changes) also c4 mains are NEVER needed in a 125 engine as the stock items run up to 40bhp quite hapily and last longer (psn dont even use c4's)
     
    MiNoR cOnFuSiOn, Dec 22, 2006
    #30
  11. tweak

    tweak Member

    Messages:
    652
    ta for the info Minor, I'll keep that in mind, notice how I didn't mention what barrell I was going to alter :D



    As for the level of tuning yes I want to get it as good as those Euro guys and reliability will be completely thrown out of the window!
     
    tweak, Dec 22, 2006
    #31
  12. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

    Messages:
    14,276
    Rides:
    et2 monster
    euro's build 40+bhp 172's m8 :D if you really wanna go silly get a fabrizi kit and crank, needs work but its like an mhr 70 port on a 210 barrel... mmmmm LOVELY or mabey consider using an adaptor plate and slamming a powervalve barrel on there, can easily fit an nsr 154/191 kit with a simple plate, problem is wiring up the ignition as the powervalve obviously needs a servo and controler..



    now thas sommin im sure has your brain ticking away ;)
     
    MiNoR cOnFuSiOn, Dec 22, 2006
    #32
  13. *James*

    *James* New Member

    Messages:
    625
    ^^ im still baffled as to how he knows all this shit LMAO :w00t:
     
    *James*, Dec 22, 2006
    #33
  14. tErr0

    tErr0 Administrator Staff Member

    Messages:
    5,816
    Pfft. I told that mofo that. :bird:
     
    tErr0, Dec 22, 2006
    #34
  15. tweak

    tweak Member

    Messages:
    652
    now that you mention it I have an NSR layed up in the garage and a complete spare motor, I'll take a look at the barrel tomorrow :pimp:
     
    tweak, Dec 22, 2006
    #35
  16. wobbly_trials

    wobbly_trials Active Member

    Messages:
    6,676
    Rides:
    RD350, SR125, ICE125
    i suggesteda rotax 122/123 top end ages ago.
     
    wobbly_trials, Dec 22, 2006
    #36
  17. *James*

    *James* New Member

    Messages:
    625


    LMAO i should have known that terro :w00t:
     
    *James*, Dec 22, 2006
    #37
  18. tweak

    tweak Member

    Messages:
    652
    [​IMG]



    the exhaust is decided :cool:



    not much else has happened other than looking for parts
     
    tweak, Dec 24, 2006
    #38
  19. SR-STEF

    SR-STEF New Member

    Messages:
    811
    that looks horrible lol
     
    SR-STEF, Dec 24, 2006
    #39
  20. tErr0

    tErr0 Administrator Staff Member

    Messages:
    5,816
    Be warned they are supost to have crap build quality and bad performance gains.



    I personally think they look crap on a bike.



    [​IMG]
     
    tErr0, Dec 24, 2006
    #40
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