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Thread: GPX 250 project

  1. #1
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    GPX 250 project

    Long story with this, but I'll give you the short version. Been wanting a bike since I was 18, 27 now and the missus agreed to let me get a bike as long as it was a project bike.
    Picked up this GPX 250 back in July. The bike had apparently been stored for two years. Not too well considering the about of dust, dirt and grass seeds I keep finding.
    The stickers on the upper fairing are what led me to this forum.
    Wasn't running initially, but got it going within a week. Since then I've been stripping it and cleaning it as much as possible
    Plans are to fix it up, repaint it, and fit as much luggage space to it as I safely can so I can use it for short camping trips with a few mates who have similar setups











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  2. #2
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    sure i saw this one on perth beer economy a while ago.?
    Quote Originally Posted by Paraletic View Post
    little end bearing. best describes as the sound of 'A little black man with a hammer in your engine'. big end sounds like a bigger black man...

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    Member TROUBLE's Avatar
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    The bike had apparently been stored for two years.


    In a swamp. ? LOL
    What You See

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    Someone may recognise the bike, but there would have been a few thousand GPXs pass through over the years.

    Pretty hard little things, so should serve you well.
    The greatest excitement comes from besting who you were yesterday.

  5. #5
    Member INTJ's Avatar
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    Good lord man. If you get that thing running and looking respectable, post follow-up pics

  6. #6
    Member Bang's Avatar
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    Wow nice job. That looks like its going to be awesome when its finished. Most of the wear looks like it would come off just fine with a bit of tlc. Im not familiar with air shifters, but i noticed a bunch of linkages between the pedal and actual shaft. Is that one on the left? Are the gears still ok?

  7. #7
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    Quote Originally Posted by TROUBLE View Post
    The bike had apparently been stored for two years.


    In a swamp. ? LOL
    Farm is my best guess XD

    Quote Originally Posted by INTJ View Post
    Good lord man. If you get that thing running and looking respectable, post follow-up pics
    Well, I don't know about looking respectable but I did have it running!


    Pretty noobish video, but she ran nicely. Idles at about 1.5k rpm, revs very nicely up to 14k

    Quote Originally Posted by Bang View Post
    Wow nice job. That looks like its going to be awesome when its finished. Most of the wear looks like it would come off just fine with a bit of tlc. Im not familiar with air shifters, but i noticed a bunch of linkages between the pedal and actual shaft. Is that one on the left? Are the gears still ok?
    Not sure about the gears being okay, as its my first ever bike, but it shifts from neutral to first and from first to second just fine while running.
    Thankfully a lot of the wear is from aged and poor storage. It is 28 years old after all

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    Member TROUBLE's Avatar
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    GPX's Live forever.
    What You See

    Isn't always what you get

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    Quote Originally Posted by TROUBLE View Post
    GPX's Live forever.
    Lets hope!
    The engine is at 88 thousand kms though, so I've started sourcing newer ones just in case

  10. #10
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    Started tackling some of that surface rust on the exhaust








  11. #11
    Member Phildo's Avatar
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    There's a GPX wreck on Gumtree at the moment. Go see what parts are worth grabbing from it.

    http://www.gumtree.com.au/s-ad/mayla...ing/1120338061
    One owner. Only driven gently on Sundays. Sold to best offer. First to see will buy. Reward offered for safe return. Coming soon to a cinema near you. Available for a limited time only.

    My waterbed broke this morning. Oh, I don't have a waterbed. Bugger.

  12. #12
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    Quote Originally Posted by Tango89er View Post
    Lets hope!
    The engine is at 88 thousand kms though, so I've started sourcing newer ones just in case
    as the clock only gues up to 99thou most ofthe lower km ones have just been around the clock once or even twice.

    if you need another motor i have one sitting in my shed at the moment. i brought it for the clutch basket but havent gotten to removing it yet.
    Quote Originally Posted by Paraletic View Post
    little end bearing. best describes as the sound of 'A little black man with a hammer in your engine'. big end sounds like a bigger black man...

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    I have a full factory workshop manual for that series if you want it. PM me and we'll arrange a pickup
    Honda Blackbird, The gentleman's weapon of choice
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  14. #14
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    Quote Originally Posted by Benny D View Post
    as the clock only gues up to 99thou most ofthe lower km ones have just been around the clock once or even twice.

    if you need another motor i have one sitting in my shed at the moment. i brought it for the clutch basket but havent gotten to removing it yet.
    Quote Originally Posted by BLK'N'BLU View Post
    I have a full factory workshop manual for that series if you want it. PM me and we'll arrange a pickup
    I'm fine on both counts for now, but I'll definitely keep those generous offers in mind.
    This forum is so much more friendly than what I'm used to

  15. #15
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    Give it time
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    Quote Originally Posted by Tango89er View Post
    I'm fine on both counts for now, but I'll definitely keep those generous offers in mind.
    This forum is so much more friendly than what I'm used to
    Put a loud muffler on that twin cylinder 250 and watch us curse you forever...


    One owner. Only driven gently on Sundays. Sold to best offer. First to see will buy. Reward offered for safe return. Coming soon to a cinema near you. Available for a limited time only.

    My waterbed broke this morning. Oh, I don't have a waterbed. Bugger.
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  17. #17
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    Quote Originally Posted by Phildo View Post
    Put a loud muffler on that twin cylinder 250 and watch us curse you forever...


    Yoshis are the go to for that aren't they? Might even get a whole .5 HP extra out of it
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  18. #18
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    Turns out beneath the rust and grime on the exhaust there's actually still some chrome



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    Quote Originally Posted by Tango89er View Post
    Yoshis are the go to for that aren't they? Might even get a whole .5 HP extra out of it
    #1 Gold Ticket Holder for the Barfridge Fan Club
    Quote Originally Posted by Phildo View Post
    Noted. We'll check back on that one in three years
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    Member House's Avatar
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    Quote Originally Posted by Phildo View Post
    Put a loud muffler on that twin cylinder 250 and watch us curse you forever...


    It already has. Those definitely aren't the stock exhausts, and I'm 99% sure they're the same "Screaming Demon" pipes I fitted to mine back in the day.

    They aren't too obnoxious (still a lot quieter than the average piped motard), but they're a lot louder than the stockers.

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