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Project MC18 Project - Brisbane

Discussion in 'Your 250cc Projects' started by Duggs63, Jul 26, 2013.

  1. Duggs63

    Duggs63 Well-Known Member

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    Hey guys,

    I figured it was time to share my project bike with you all.

    Going back a few years now, my very first bike was a Pentax Mc21 NSR250, which was an unreal little bike! However, I ended up selling it and going for a much newer and more reliable GSX-R 750, which is also an amazing rig, but it couldn't quite fill the void the little 2-dinger left behind.

    A few years later, I came across a huge pile of MC18 bits of gumtree, which was apparently enough to make almost 2 bikes... So I made the leap!

    [​IMG]

    It was a pretty massive gamble, as the guy I bought it off was told it was a running bike, but it had a broken water pump outlet so neither of us knew if that was the truth... Once I got it home, the first thing I did was a compression test, and check the exhaust ports for evidence of previous seizure.

    [​IMG]

    Compression was good on both cylinders. Pistons and bores looked good too! What are the chances of that!?

    [​IMG]
    [​IMG]
    I then decided on a colour and purchased some Chinese fairings (as I didn't have any OEM panels). These look bloody fantastic for the money! The fitment isn't perfect but I didn't expect it to be given I paid $500 and something delivered.

    [​IMG]
     
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  2. Duggs63

    Duggs63 Well-Known Member

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    After this point, I gave the bits and pieces a bit of a clean, and started putting it all back together to see if the old girl would actually run...

    [​IMG]
    [​IMG]
     
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  3. kiffsta

    kiffsta Administrator Staff Member Dirty Wheel Club Contributing Member

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    Nice, MC18 R5k ?
     
  4. Duggs63

    Duggs63 Well-Known Member

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    It is a PGM-1 R2J, although with the purchase I got a 5K frame, loom and PGM-2 ecu. I was considering changing them over, but it seems like a lot of work for minimal gain. I will see how we go I guess.
     
  5. Duggs63

    Duggs63 Well-Known Member

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    Oh, and it looks something like this now... Still a lot of work to do, but it is a lot of fun to tinker with.

    [​IMG]
     
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  6. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

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    Good stuff there :thumb_ups:
     
  7. kiffsta

    kiffsta Administrator Staff Member Dirty Wheel Club Contributing Member

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    the longer exhausts in the first pic looked like they were off an R5K, incredible machine !!!!
    My Dad was riding my NSR, he gave it a bootful from the lights, I was chasing him on my ZXR750 and he contnued to pull away... until ..... well lets not go there :prankster:
     
  8. Duggs63

    Duggs63 Well-Known Member

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    Thanks guys. Still a long way to go, but I am getting there slowly but surely. You are onto it Kiffsta, I got 3 sets of chambers in the spares and the ones in the 1st pic are the R5k pipes with the chrome muffler pipes.
     
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  9. Phil

    Phil Senior Member Premium Member Contributing Member

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    Got a tad excited, thought I was going back in time. Best looking bike, performing bike I can remember. Love to see it when you have finished. Well done mate. Just in case you hadn't noticed, BIG FAN :thumb_ups:
     
  10. 2strokepower

    2strokepower Member

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    Wow good find! bit of a treasure trove, well done, i'll be following this!

    Sent from my HUAWEI U8815 using Tapatalk 2
     
  11. Duggs63

    Duggs63 Well-Known Member

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    Can anyone recommend somewhere in Brisbane that is familiar with 2-strokes, that can give the bike a thorough once over? I would also like to get it tuned, preferably on a dyno and get the carbies set up as that is totally not my bag.

    Any advice helps. Thanks gents. :)
     
  12. Fox McScrooge

    Fox McScrooge Well-Known Member Premium Member Contributing Member

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    G'Day mate. Really nice bike! I always admire anyone who takes the plunge and buys an MC18. Parts can be a more than a little hard to come by these days! Have you taken a look at the NSR World forum? Lot's of good info there on the MC18 (including tuning tips etc) as well as parts for sale. They also have service manuals available, translated into English; for a price. Slipstream Performance in Australia may also be able to help you out with someone to look at the bike and with parts as well. They used to tune them but don't anymore. There is also a guy in Japan who goes by the name of Moriwaki Man and runs a website called The Unobtanium Portal who may be able to help with parts. He seems to be able to find parts that a lot of other suppliers say are discontinued. Japan Webike is OK for parts too.

    As far as tuning goes, if you end up doing it yourself, all I can say is if the air box has been tinkered with then start big on the jets and work your way down. Last thing you want to do is seize it up running it too lean. Otherwise, if the bike has the standard airbox and jets/needles in the carbies I wouldn't mind betting it will fire straight up. Make sure you check the oil injector pump works and bleed it before you start the bike as well.
     
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  13. Duggs63

    Duggs63 Well-Known Member

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    Hi Jim, thanks for the feedback. I do quite a bit of trawling on NSR world... It is a wealth of information! I have also dealt with Slipstream Performance before getting a water pump cover and a few other bits, and they were great too.

    I don't think I will try and tune myself, because I imagine another engine would be hard to come by... (that's how much faith I have in my ability to set up the carbs). I am running pre-mix at the moment, and I will definately be checking the oil pump if I decide to steer away from what I am doing at the moment.

    I see you have an MC28!!! I have never seen one in Aus. I think you should do us all a favor and put it up so we can check it out.

    Cheers,
     
  14. Fox McScrooge

    Fox McScrooge Well-Known Member Premium Member Contributing Member

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    Hi Duggs. Yeah well I had never seen one in Aus before either so when it came up for sale I jumped all over it. The guy who sold it to me said it was a 94 R2R but I checked the frame / engine numbers and numbers on the subframe and it's definitely a 96 R2T. Gotta love that dry clutch and card ignition :D. Hard to de-restrict though. Anyway, I'll start a thread on it and throw up the photos I have now.
     
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  15. Duggs63

    Duggs63 Well-Known Member

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    So tonight I went fishing through the huge box of spares, and I came across some interesting finds... 2 sets of barrels in good shape, and proof that 2-strokes can go BANG in a biiiiiiiig way! Not sure if this happened in my bike, but either way, I got a laugh out of it...

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
     
  16. Fox McScrooge

    Fox McScrooge Well-Known Member Premium Member Contributing Member

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    Wow. That's not a seize, that's total destruction! Hope the crank is OK? Good that you found those barrels - they aren't cheap that's for sure.
     
  17. Phil

    Phil Senior Member Premium Member Contributing Member

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    That is some major damage, I know only to well as this happened to my Suzuki x7. There are photo's in the Suzuki 2 stroke section under the heading of: gt250 went bang, have a look!
     
  18. Duggs63

    Duggs63 Well-Known Member

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    Jeez Phil, you weren't kidding! Catastrophic Failure!
     
  19. Fox McScrooge

    Fox McScrooge Well-Known Member Premium Member Contributing Member

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    On a positive note Phil, the left hand piston looks OK :cool:

    That engine can't have done too many kms from a rebuild? No carbon at all on the piston crown.
     
  20. Phil

    Phil Senior Member Premium Member Contributing Member

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    Wasn't a pretty site, metal fragments all over the joint. We eventually found another engine, had it re-bored with all the works. The joys of motoring haha!!!
     

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