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Kimjon

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Posts posted by Kimjon

  1. Fuck yeah!

    Sealink weren't going to let me push the bike on, it was a bit touch and go. Apparently you have to ride the bike on. Given it doesn't go right now, that wasn't happening.

    Dude said I'd have to order a tow truck, get it on the tow truck to transport it to the other side due to health and safety rules.

    I must have given him my best "tf you just say" face. He then said, well hold on, let me ask the captain if we can do this as you look capable of performing the task. Captan looks out window...no problem...come aboard... yes!!

    So happy with this bike, its fucking mint. Its had a bare metal restoration. There's a few things that aren't my taste, but such a good base. Its 95% original and complete. Only some trivial stuff to finish it

     

    20250712_140614.jpg

    • Like 8
  2. 14 minutes ago, 440bbm said:

    thats the 2nd gen of the moto4. the first was a 225 with a way more vintage look, actually better imo.  had both and they're sweet bikes. i do prefer the first model though.

    Cheers, good to know thanks.

    Its a fun little machine to play around on. I've been riding around my lifestyle block and our neighbours farm, so far it's climbed every hill I've put in front of it.

    Its got 40 years of quirks, work arounds and dodgy repairs to unravel. But it seems mechanically solid, so maybe that's all I need. Sometimes you gotta know when to stop and accept the win.

     

  3. Another distraction enters the room...poor Ape, you'll never get finished with the way this story is unfolding. 

    IMG-20250628-WA0000.thumb.jpeg.010b1c289826c6a120d01343c01ca8d3.jpeg

    But come one, a 1980's vintage quad bike. This is the first Yamaha quad made, after the 3-wheelers and probably a lot of litigation in the courts over the safety issues of such machines.

    Bit of a bucket list item for me, as this particular model (Yamaha moto4 250) is so entrenched in my childhood memories. Stoked to have it in my shed.

    • Like 2
  4. And then there's the buell, which is a medium fast bike.

    I dropped a cylinder 2 weeks ago. What a fuck around that turned into. First thing I did was check if it had spark, which it appeared to have good strong spark. So I focused on fuel, compression, then back to the coil. All tested well. Yep, full circle - the fucking sparkplugs was the actual problem.

    20250503_084905.thumb.jpg.76f8aba4c521e918b293c41f68a56d7a.jpg

    Anyway, got there in the end. Replaced the plugs - back to normal again.

    Its challenging swapping between the bikes (BMW v Buell). They're two completely different bikes to ride. I think that's why it feels so sketchy going from one to the other.

    • Like 5
    • Haha 1
  5. Bmw is running so good now. I've basically been daily riding it for the past 2 weeks.

    20250503_120030.thumb.jpg.9c72166299311bac0c75ea72ae680918.jpg

    Unfortunately I'm getting a little complacent with it. It doesn't feel fast, like a modern bike. And in reality it's not...however the speedo tells me I'm actually going faster than I should. Today I nearly lowsided it as the rear end started to drift around a corner.

    Its a bit of a wake up call. Tone it down, live to fight another day.

    • Like 7
  6. Carb vacuum guages to sync. It's not an exact science, and due to many factors it's unlikely that opposite cylinders will read the same values on the dot. But from what I could find, if you're within a unit (1kg/cm2) you're close enough. Mine was well below that, so by all accounts a great result.

    20250428_102535.thumb.jpg.2a9a7b0bc6c73480b1082d861c3d8c4f.jpg

    I didn't care what the values were, so long as both guages were doing the same thing, at the same time (more or less). 

    I was probably 4-6 units out, tuning by ear and feel. Shows how hard it is to tune that way. One cylinder can be working considerably harder and compensate for the opposite one, which was very much my situation.

    Bike runs smooth and no backfiring now. So we'll worth doing.

    • Like 7
  7. 20250426_141049.thumb.jpg.3f2dd64f34afe188bb4cbb981290910d.jpg

    I've been rediscovering this bike, after my buell decided it doesn't want to run on two cylinders.

    I've been fixing all the little things that drag on forever in these builds. I'm basically there, tuning the carbs to run in sync, wiring, calibration of speedo, etc...etc...etc...

    Runs amazing for an old bike. And has a bit of character to it. It was popping and back firing, but that's all tuned now. Bit of a shame as I kinda liked the pop...pop...pop...on deceleration and the truck like engine braking it provided, however the benefits of the tune outweigh the loss of cool sounds and engine braking.

    • Like 1
  8. 1 hour ago, johnnyfive said:

    That's great, any footage of it at work? 

    Also is there a maximum rpm on line trimmer attachments?

    No idea on rpm - but its got all the torque this motor.

    No video of it, but it's got so much torque it never stalls, or get clogged up. The centrifugal force clears the tri blade and keeps it clean. With the original motor I was forever stopping to unwrap the long grass.

    13 minutes ago, tortron said:

    the triblades are rated to about 12000 rpm, ign cutoff is about 10500 on a sthil

    Thanks^

    • Like 1
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