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mcman56

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Everything posted by mcman56
 
 
  1. Do you think the old damping rod forks may be easier on hands...up until the speed they spike. See the graph 1/2 way down the page in this link comparing damping rods with cartridge forks. https://racetech.com/page/title/Emulators-How They Work The damping rod curve certainly looks easier on hands to me. I'll try riding my TL250 and see how that feels.
  2. IIRC, there is a hole in the frame that takes a grommet similar to a grommet that protects wires going though sheet metal. That post on top slips up into the grommet. See item 12. I had a 14 model that did not line up well, was hard to get into place and tended to break the grommet over time so I can see why someone would use tie wraps. After a few replacements the grommet stopped breaking on me. Bolts go into rubber bottom mounts, See link. https://ibb.co/2KfTv3j
  3. I have arthritis in both thumbs. The trapezium bone has been removed in one hand and pending in the other. Some knuckles are not in great shape either. Both hands and wrists are getting quite sore from riding and stay that way afterward. I would think modern suspension would be better but my Beta 4t is harder on my hands than my TY175. On the beta I'm constantly on the clutch and front brake plus ride bigger obstacles. (I did put thinner oil in the forks.) On the TY I'm mostly on throttle only and suspect the skinny forks flex around to help cushion things. I do try to minimize hand pressure when riding. I have thought of an electric bike because you don't need to use the clutch but I'm not sure if the clutch is really part of the problem. Has anyone found any tricks, accessories or mods to make trials easier on their hands? Are some bikes easier on hands? This question is from the perspective of being able to ride not from the perspective of being able to ride well.
  4. Are there any documented gate trial rules? Are there variations? I have seen one type where the first footing means the rider has failed the section. This seems a bit harsh and would encourage very conservative riding.
  5. mcman56

    TY175 Clutch

    I still need to pull it apart but have never looked at the cam. It looks like they are unavailable. Can they be refinished? Do you have any experience with different brands of friction plates? Yamaha, EBC and Vesrah are available in addition to non branded probably Chinese ones. Do you have any idea what kind of grooves can be put in the metal plates? Are there any pictures out there? It seems like they would encourage warping. IIRC, the OEM plates are dimpled.
  6. mcman56

    TY175 Clutch

    As purchased, my TY175 clutch worked OK but had a some drag and was abrupt compared to a modern bike when released even with a lever arm extension. At some point in time there was a lot more drag and it became more abrupt. It would even stick when riding such that when you pull in the clutch and there was a delay before disengagement even when hot. I sanded the steel plates but I forgot which roughness of paper used. I filed the clutch baskets mostly flat but not totally flat. I also removed some burrs found on the ears of the fiber plates. All plates looked flat. It was improved and maybe similar to when I purchased the bike but after a small number of rides is back at its worst. Could this be the steel plates getting polished up again? I have a glass bead blaster. Could that be better? Any suggestions?
  7. On the 2016 there is a connector right in front of the rear wheel. The first time I took it apart I found green connector pins and I live in a mostly dry climate.
  8. On my 2016, there is a connector under the fender near the air box that connects the electronic petcock and the fan. If you are doing anything in that area it is easy to disturb that connector. It can look connected but is not. I have to be very careful to push it together firmly. I have had the petcock and fan not work in the past due to this situation.
  9. How do you go about buying one? Is there a web site?
  10. What exactly do the magical spring do for the bike? Are they overall stiffer or softer or just different? What shocks did you have before rock shocks?
  11. It probably matters what level you would ride. The type of terrain makes a difference also. I have a couple of modern bikes and vintage bikes. At 66, I can ride more challenging things on a modern bike but a TY175 is the easiest on my body. It is almost as light as a modern bike, kicks and starts easily. It also has a seat. Due to the power delivery, everything happens slower which is easier on brain and body. It is mostly clutch out riding so easier on your hands because you are not constantly working the clutch. The one exception is riding in rocks. With 4 inches of rear suspension travel and 45 year old forks, you feel like a ball in a pinball machine when riding across a field of rocks or up a rocky creek bed. I have not needed much but parts seem readily available. That said, an 80 year old bud got an Electric Motion this year and loves it.
  12. mcman56

    Bielle

    A friend had a big end con rod failure on a 125 beta probably due to water getting in. When running it made a nasty grinding sound. When I pulled the cylinder I could feel up and down free movement of the rod.
  13. Similar? https://www.cmsnl.com/honda-tlm240r-1987-hrc_model35474/partslist/#.Y6nfytLMKXI
  14. mcman56

    Beta Evo 300 4t

    Were you missing any small parts like a bolt or screw when you reinstalled the carb? The fact that something like this occurred right after having the carb off suggests that something could have gotten into the intake port when the carb was removed.
  15. Some bikes have the engine size cast into the barrel. I think Sherco did that. The 2.9 was 270 or maybe 272. I have seen some Gas Gas cylinders with a 28 cast in. Is that 280 cc?
  16. You also have to consider fit or shape. I bought a pair of alpinstars but they were too narrow for my feet. I have had several pairs of Gaerne and they fit a wide foot. I now have Forma that fit like Gaerne but are a bit stiffer so I feel better protected. They are also a bit taller. The soles are more durable.
  17. I had a pair of these MS boots. They were very similar to trials boots but did have a little heel. Dual Sport/ Adventure boots have a full tread unlike MX boots that are designed to slide forward, This makes a difference when walking sections. I don't think they are made any more and went quite cheap on close outs. https://www.linkedin.com/pulse/malcolm-smith-racing-introduces-new-dual-sport-boot-aj-dia/
  18. I had that issue with a 2016 Beta 4t. On that bike the spring would hit the end of a bolt when the stand was at full extension to make it self retract. A shorter bolt eliminated the self retract feature. I bought the bike used so am not sure if the long bolt was OEM or not.
  19. I'll spend some time with the parts lists. Thanks
  20. Are you saying that all of the DT covers will require a longer kickstart shaft length?
  21. https://ibb.co/hYPZ1qn <a href="https://ibb.co/hYPZ1qn"><img src="https://i.ibb.co/2ZDsYbL/TY-vs-96-RT100-cover.jpg" alt="TY-vs-96-RT100-cover" border="0"></a> <a href="https://ibb.co/hYPZ1qn"><img src="https://i.ibb.co/hYPZ1qn/TY-vs-96-RT100-cover.jpg" alt="TY-vs-96-RT100-cover" border="0"></a> [url=https://ibb.co/hYPZ1qn][img]https://i.ibb.co/2ZDsYbL/TY-vs-96-RT100-cover.jpg[/img][/url] [url=https://ibb.co/hYPZ1qn][img]https://i.ibb.co/hYPZ1qn/TY-vs-96-RT100-cover.jpg[/img][/url] Do picture links not work directly anymore?
  22. Is the 52500 marked clutch cover the only one that will fit a TY175? I found that the same gasket fits a RT100 so bought one off of Ebay but it is about 10 mm wider. It is also 10 mm wider at the kick shaft area so would at least require a longer kick shaft. https://ibb.co/f2vnmJ6
  23. TL250 are 33 mm so maybe bored out TL250 clamps. I'm having problems with pictures but have links. https://ibb.co/B2ghdCr https://ibb.co/0hRRdgX https://ibb.co/8Nt1NCk
  24. How do you remove the seal under the bolt at the bottom of the fork? Do you need to replace if it looks OK? I currently have 2 sets of forks. One set has what looks like a red fiber washers in place but they do not want to move almost like they are glued on place. I don't know if both sides sealed or not. The second set looks like it has copper washers on top of the red fiber washers. Both sides of this did seal.
  25. What type of sleeve was used? Was it a pressed in or loctited bronze bush? Bicycle bushes look like modern split motorcycle fork bushes. They may fit but are probably 1 mm thick at max and would need some kind of metal retainer.
 
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