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kawagumby

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About kawagumby

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  1. Raising the forks to that height helped reduce effort during sweeping turns while being centered on the bike. I would think the fork width transition you suggest would be fine - it would be interesting to see how much measurable fork flex actually occurs while riding...I wonder if there's a video of that somewhere.
  2. Hi, Sure, you could limit the machined area. On my bike, with the forks shortened 3/4", the top of the fork cap is 11mm above the top of the upper triple clamp. One inch below the bottom of the lower clamp is about 11 inches below that top of the fork. (do you like the way I mixed metric and US measurements? I didn't think so...LOL.) The only thing I would be concerned about in doing that would be the possible creation of concentrated stress - a "stress riser", but that could likely be avoided by gradually tapering the two diameters together.
  3. BTW, the lower triple clamp area wall thickness of the YZ KYB forks is 5.7mm before machining.
  4. Hi Survivor, These forks would fit, the upper and lower tubes are identical to the 125's forks. However, your weight would be best suited to using the 125 forks, which have .41 springs, vs these 250 forks, which if stock, will have .43 springs. The 250 stock valving is stiffer also... The 125 combined stock springs' rate is just slightly higher than the stock single XT spring's at .8. Here's a set you might be interested in : https://www.ebay.com/itm/2001-Yamaha-Yz125-Right-Left-Front-Suspension-Forks-Shocks-Set/223190749841?fits=Year%3A2001%7CModel%3AYZ125&epid=1028623562&hash=item33f7349291:g:IsUAAOSwH~RbxMqa:rk:48:pf:0 Things to look for when shopping forks include: no scratches or pits on the lower fork surface, the bottom compression allen is not rounded, no lumps or discolorations on the upper tubes (can indicated inter-granular corrosion), no broken tabs or stripped threads, the cap nut is not rounded. Most professional motorcycle recycle businesses are good to deal with, and if there is a problem will accept returns - my experience is they have the cheapest prices and clean the parts too. If you can get a set with fork guards in decent shape, that'll save another $30-40 also. I've purchased over ten of these forks, and average cost has been about $120 per pair including shipping (but I watch for good deals).
  5. Just aligning the two different fork tubes by eye, then measuring the axle locations with a caliper, I came up with the YZ forks having about 2mm less offset than the XT. If anything the handling seems more "planted" with better trail feedback. How much of that is due to the offset vs better forks, I don't know. No down side...but make sure the forks are shortened at least by 3/4" so they will provide the correct geometry. As an aside, with flex bars there isn't much room to slide the forks up for ride adjustments and shortening the forks 3/4" barely makes it, so 7/8" might be better for those who use those bars.
  6. kawagumby

    XTrainer Factory Pro Sachs Option

    My measurements indicated the YZ OC KYB's had an offset that was about 2mm less than the stock XT forks. It is hard to quantify the exact changes that the new forks provide (beyond damping and spring action), but the bike does seem to "feel" shorter, with tighter, more planted handling than it did before - yet still has more stability at faster paces.
  7. kawagumby

    XTrainer Factory Pro Sachs Option

    My XT with the stock shock and OC KYB forks is a very "tight" handling bike. The feedback is excellent, you know what the bike is doing both front and back at any speed. There are no geometry issues that I can notice - as I use the stock triples. The shock is not as plush as some others out there, for sure, but it gets the job done for my weight (185 with gear), but I feel the hits at the end of the day - but I don't have any buns to speak of, LOL. I can see where a heavier rider would have problems with it. As an aside, the K9 fork kit Beta sells is a very poor compromise, IMO. The price is too high for what you get and it really doesn't add much versatility, it just stiffens up the fork damping and provides a compression adjuster. I wish I had that money back (read rip-off). I bought a like-new XT shock, and I plan to play with it when I'm not working on my other bikes. Right now I'm in love with my 125's and modding them heavily as woods bikes. I'm shocked at how well the little bikes handle just about everything once you get the low-to-mid working well. All you have to do is think about changing a line and it's done...remember clint eastwood's "firefox" ?...kinda like that.­čśÇ
  8. The axle sizes are different, unfortunately, so the yamaha wheel is the best way to go.
  9. kawagumby

    Xtrainer swap thought

    I used 46mm OC KYB forks (yamaha yz), so I just machined off 1mm of the fork only at the lower clamp area and they fit into the stock triples. No issues with stems or fenders, etc. and the stock Nissan brakes bolted right up too. Probably the easiest fork swap I've ever done.
  10. kawagumby

    Xtrainer swap thought

    Are you going to shorten the forks? The stock Xtrainer forks are shorter than most. For my KYB swap I shortened the forks 3/4", but if I were to do it again, I'd go a full inch - to get a little more fork height adjustment in the triples if you're not using bar risers.
  11. kawagumby

    Xtrainer coolant loss

    Some of those issues can be the head gasket o-rings leaking pressure into the coolant. My '17 Xtrainer started leaking around the thermostat, the clamp, etc. so I dealt with those directly - unsuccessfully - when I changed the o-rings all those problems went away.
  12. kawagumby

    Beta quality slipping?

    The space on the side that is not protected. An overgrown abandoned totally wasted trail, sidehill, about a foot wide, came upon a cross-root with a big hole that was dug out in front, tree adjacent on the left side. Bike was stopped. Decided best route was quick burst wheelie around and up on right side...done that kind of thing many times before. Something went wrong...walking speed, lost my balance and fell sideways onto the tree trunk...weight of my body and most of bike behind it...craaack....oh man. I was down for a while. Took me forever to get out. Now I have some football rib protectors, and I will never ride without them again. They cover the area between the front and back parts of the chest protector so I can now fall sideways with relative impunity (not) LOL.
  13. kawagumby

    KDX 200 Torture Test

    Great find, Skoalman!
  14. kawagumby

    Beta quality slipping?

    Yes, you are correct, the E model powervalves were made of aluminum, so if you didn't clean them regularly, they would carbon up and stick, which would shear the aluminum drive teeth they had - but no damage to engine and you could always get home. However, now there are a couple of outfits that make steel replacement gears - one in the UK (where I bought mine).
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