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About CaptDan

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    My kids.

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  1. CaptDan


  2. CaptDan

    Extra bolt on a FX ?

    Take your pick... #11... https://www.partzilla.com/catalog/yamaha/motorcycle/2016/yz250fx-yz250fxg/fender #26... https://www.partzilla.com/catalog/yamaha/motorcycle/2016/yz250fx-yz250fxg/electrical-2 #23 (probably too long)... https://www.partzilla.com/catalog/yamaha/motorcycle/2016/yz250fx-yz250fxg/radiator-hose #7 & 16... https://www.partzilla.com/catalog/yamaha/motorcycle/2016/yz250fx-yz250fxg/side-cover These numbers were taken from a '16 YZ250FX, so there may be others. Good luck!
  3. CaptDan

    WR450F rim work with YZ250X hub?

    The entire YZ250X rear wheel is interchangeable with the WR450 (and YZ450FX) wheel up to 2018. https://www.partzilla.com/product/yamaha/5ET-25311-00-00?ref=e99de0be1c1ef970ba9bda3b1b35f3abe807494e The spoke set has been the same for all YZX, WR, & YZFX 18" wheels since 2001, https://www.partzilla.com/product/yamaha/5GS-25304-00-00?ref=e99de0be1c1ef970ba9bda3b1b35f3abe807494e Therefore it should be safe to say that any modern Yamaha 18" dirtbike rim will swap with your YZ250X rim.
  4. CaptDan

    1993 YZ250 engine fit 1999 frame

    Knock out the '93 collars and machine them to the '99 I.D. The swingarm pivot shaft got bigger again in 2002, so when swapping engines this situation often happens. The swingarm pivot/engine collar mount is the most critical; once you get that aligned you can verify all the other mounts. I'm not positive, but I think that the bottom and/or front engine mount changed location sometime in 1996 or 1999. Cool project. Keep us in the loop with what you find.
  5. CaptDan

    Yz250 start shaft failure

    Yamaha went to an 18mm kick shaft on the YZ250s beginning in 2002 (down from 20mm on the earlier bikes), and these thinner shafts have been known to break once in a while. The break always seems to occur at the hole that holds the return spring. If you are lucky you won't crack your side cover when the shaft breaks, but most of the time it takes the cover out with it. You can repair everything with stock parts, but the best fix is to revert back to the robust 20mm kick shaft & side cover from the 1999-2001 YZ250. The 20mm shaft requires a '99-'01 kick lever, but the YZ400, 426, & 450F kicker (any year except 2003) works as well. Have you seen these threads? https://thumpertalk.com/forums/topic/926617-yz250-kick-start-preventive-fix-summary/ https://thumpertalk.com/forums/topic/881605-2-broken-kick-shafts-in-12-months/?tab=comments#comment-9171168 https://thumpertalk.com/forums/topic/1075085-1999-yz250-kicks-tart-shaft-assembly-same-as-02-and-up/?tab=comments#comment-11456545 There are more threads, but these seem to have the most info. Good luck!
  6. CaptDan

    93 yz 250 plastics?

    You would need a 1996-2001 YZ subframe, airbox, tank, and seat to a adapt 1996-2001 plastic to your 1993. A few members have made the switch and (IIRC) it wasn't that hard. A TT search should bring up threads that cover it. The 1993-1995 shifter-side OEM side panel is available from Partzilla; https://www.partzilla.com/product/yamaha/4EW-21711-01-00?ref=df0b9795e2811345c9621360c54d3942227494d4 Aftermarket 1993 side panels; https://www.partzilla.com/product/aftermarket/1L9S-UFO-YA02857046?q_ref=30b069ef2d3cba7bfc841dd7e20a7c3ae936fd1e+1=Yamaha 1993 rear fender; https://www.partzilla.com/product/aftermarket/1J66-UFO-YA02858046?q_ref=7f36fa08d139033fe7349b1e91948a720c9be579+1=Yamaha Radiator shrouds; https://www.partzilla.com/product/aftermarket/1KCY-UFO-YA02856046?q_ref=8cfe6e94decd24a8dc9fba29440dff190cdfa98c+1=Yamaha Keep us in the loop with what you do.
  7. CaptDan

    New Yamaha two strokes 2019!

    "Shorties" may complain the loudest about bikes being too tall, but they certainly don't complain more; check the number of threads asking for ways to make bikes roomier for tall riders. With that being said, it seems more OEMs are adding adjustability to their bikes in the form of multiple bar-mount positions and peg heights to accommodate a wider range of riders.
  8. CaptDan

    Yz 125 years... any warnings?

    The '05 (& '04?) YZ125 needed to have the shift stopper replaced with the newer design, before it grenaded and ruined the gearbox. I imagine any 125 still running has already had that upgrade, but still something to keep in mind. Oh, and YZ250.
  9. CaptDan

    YZ 250 engine build

    Original seat?! That bike looks fairly unmolested. Especially for an 18 year old. Good job.
  10. CaptDan

    01 yz250 with 2016 yz250 rims???

    Any & all engine rebuilding info I respectfully turn over to Gary, AKA, 2 STROKE YZ DOC .
  11. CaptDan

    01 yz250 with 2016 yz250 rims???

    According to the parts list, the rear wheel has been the same from 1999 to 2017... https://www.partzilla.com/product/yamaha/5ET-25311-00-00?ref=7f130c91aba0ecfb98a97c32dcc4d5f7c9ad0f38 ...so it should bolt onto your 2001 with the 2001 axle & spacers. The front wheel and spacers changed in 2002, and the spacers changed again in 2008, but I have heard that the older and newer wheels can be swapped without issue. You may just have to play with spacers to find the magic mix. Good luck, and keep us posted with what you find. P.S. That bike looks pretty clean!
  12. CaptDan


    Yamaha ran the same front wheel & hub assembly from 2002 to 2013, so your 2005 front wheel should be fine. https://www.partzilla.com/product/yamaha/5NY-25111-00-00?ref=3682d08935bcb75790780c04d9f8b8d2b3c9a1bc The brake-side wheel spacer was also unchanged from 2002 to 2006 (or '07 on some models). https://www.partzilla.com/product/yamaha/5NY-25183-00-00?ref=439983f0da2b7b33a46aab82b448c9748c5bbdad ...same with the non-brake side spacer. https://www.partzilla.com/product/yamaha/5NY-25117-00-00?ref=439983f0da2b7b33a46aab82b448c9748c5bbdad As I'm sure you know, Yamaha increased the distance between the fork legs 2mm with new triple clamps in 2006. But when Yamaha moved the fork legs apart 2mm they also moved the fork lugs closer together 1mm per side, for a 2mm net move. This explains how the 'older' wheel & spacers were still used with the newer forks & triple clamps from the factory. This also allowed them to run a shorter axle, which is the only thing different from your '05. The distance between the fork lugs should be (If I remember correctly) 130mm. Like Matthias V mentioned, the 4-strokes went to a larger diameter front axle starting in 2014, but (disclaimer alert!) as far as I know, the spread between the fork legs has not changed since 2006. Lots of guys have used the newer triple clamps (for the 22mm offset they provide) without issue. Perhaps someone with a 2014 or newer YZ450F can do a quick measurement. But according to the parts lists, all your 2005 spacers should be correct to run with 2006 YZ250F forks. Hope that helps. Good luck, and keep us updated with what you find.
  13. CaptDan

    06 YZ450 front end on 98 YZ250

    I picked up a used, all-stock 2006 YZ250 a few years back. Like I said, I had fresh oil put in the forks and just ran them like that. No change in oil weight or amount. No valving. I didn't even mess with the clickers. I have no idea what the spring rate was -- whatever came stock, I guess. MXA says 0.43 kg. https://motocrossactionmag.com/tw0-stroke-tuesday-we-test-the-2006-yamaha-yz250/ My friend with a 2007 CR250 was surprised that the YZ was more refined than his custom-tuned forks. Asian195 is pretty spot-on, but you shouldn't need to swap stems; the '06 450 stem should be the same length as the 250 2-strokes.
  14. CaptDan

    06 YZ450 front end on 98 YZ250

    In 2006 the spacing between the fork legs was increased by 2mm, so the triple clamps will need to match top & bottom. (That's why I mentioned keeping an eye on the spacers if you run the '98 front wheel.) That ProCircuit lower clamp is a great deal. A few guys here jumped on it. It would be ideal if you could get an aftermarket '04-'05 top clamp (with movable bar mounts) while you're in there. If it were up to me, I'd run an OEM '06 lower triple with an OEM '07+ top clamp (for the adjustable bar mounts.) TT member kenpowell did something similar... The O.C. forks can be made to work very well, but I've heard that the '98-'01 forks were especially tricky to get right. All I know is that all I did to my '06 forks was change the oil -- nothing else -- and they were just short of magical. (I'm 180 lbs. woods rider) That is a super sweet WR. I'd do the fork swap simply because that bike is a keeper!