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Type: Posts; User: DonTZ125

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    I've seen 'OBO', which means 'Or Best Offer,'...

    I've seen 'OBO', which means 'Or Best Offer,' meaning the guy is running a bit of an auction.
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    How true are the wheels and crankpins? If...

    How true are the wheels and crankpins? If clearance is good and the bearing sockets are tight, the only thing I can think of is wobble ...
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    Why do you need rubber mounts for the...

    Why do you need rubber mounts for the quickshifter?
  4. There are probably more 4DP / 4TW cases on this...

    There are probably more 4DP / 4TW cases on this side of the pond than 3XV ... *sigh*
  5. So you have a 2-stroke liquid cooled twin....

    So you have a 2-stroke liquid cooled twin. 4-stroke twin up to 700cc? Nope. 4-cyl up to 500cc? Nope. Air-cooled twin up to 1000cc? Nope. Single? Nope.

    Nothing ambiguous about it - the TZ250 isn't...
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    List updated in first post.

    List updated in first post.
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    The tach is directly connected to your left coil;...

    The tach is directly connected to your left coil; any internal shorting, and it's grounding out your spark!
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    Check the frame ground bolt and wire.

    Check the frame ground bolt and wire.
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    My search-fu is clearly weak this day. Can you...

    My search-fu is clearly weak this day. Can you provide a link to the crank pin?
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    PM replied

    PM replied
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    RS125 / 250 PowerJet Mode Selector Couplers

    I was doing some reading a little while back (on a different topic) when I found myself reminded of these, and did a little more research. I have to say, for as clever as Honda can be with some...
  12. The piggy-back logger would be fairly cheap...

    The piggy-back logger would be fairly cheap ($30-40), but would only be able to log those values that the ignition uses (RPM, TPS, spark advance, retard vs knock, etc), and I'm out of ADCs for things...
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    Learn something new every day ... Thank you for...

    Learn something new every day ...
    Thank you for the info - greatly appreciated.

    Email replied.
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    Hi, Dan. The squarebore 250s changed carbs as...

    Hi, Dan.

    The squarebore 250s changed carbs as well; they sure do look like the Kehins used on the 125s! (shrug)

    Anyway - at the top of the carb is a little brass (?) elbow screwed into the carb...
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    RSCycles and TSO.US.com still have the conrod;...

    RSCycles and TSO.US.com still have the conrod; neither seems to have the pin. Oddly enough, Yam changed big-end bearing and washers when they went to the 54x54 engine with the 125, but the 250...
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    Measuring Fittings - late model carbs

    Could I ask some kind soul with Keihin carbs on his '99+ 250 for some measurements? I'm looking for the thread size on the cable spout, the cable diameter, and the length & dia of the button on the...
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    Pure2strokepirit is back, with a slightly...

    Pure2strokepirit is back, with a slightly different URL. They have the '92 D service manual and all 4 years of parts books here
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    The 4TW4 uses the same valve, holder and shaft...

    The 4TW4 uses the same valve, holder and shaft as the 4DP1, but uses the new pin 93604-26256. With an MSRP of US$1.09, stock up and buy a few for your friends! ;)
  19. Thanks for the explanation - glad to hear I'm...

    Thanks for the explanation - glad to hear I'm doing it the right way! :cool:



    I'm looking at an open-source logger for a variety of projects; I need to do some testing and confirm it will work...
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    According to the EBC online catalogue, you want...

    According to the EBC online catalogue, you want FA145 for organic, EP145HH for sintered, for the '89-01 TZ250s.
  21. Speaking of kit harness, I would appreciate it...

    Speaking of kit harness, I would appreciate it any 250 riders with a kit harness could comment on any extra bits. I know about the 0-7 selector and the yellow wire going in at the top-right pin of...
  22. That would be great - thanks! PMs sent to you...

    That would be great - thanks! PMs sent to you both.

    The connectors for the 4DP harness have arrived; just waiting on the wiring ...
  23. Of course. Spark is spark, whether it's from an...

    Of course. Spark is spark, whether it's from an OEM box, kit box, or a programmable box. If my ignition makes more power with the same curve, there's something wrong with the OEM box. If the OEM box...
  24. Yes, and/or Canadian riders, since I'm up here. I...

    Yes, and/or Canadian riders, since I'm up here. I will be doing basic bench testing on the alpha prototype, then a reality check for timing offset etc with a local fellow who has a 4JT. There is a...
  25. The price will almost certainly be over US$330;...

    The price will almost certainly be over US$330; my disdvantage vs my competition is that I have to buy my components from the wrong side of what was the Iron Curtain ... ;) I do hope that the...
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