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  1. Yamarus

    Updated Driveshaft 8JP-G7511-10-00---metallurgy testing

    Is the shaft with arctic cat drives suitable for Sidewinder B-TX? 7-Tooth Sprocket Track Drive p/n 6639-899
  2. Yamarus

    Btx le gearing

    The last belt broke as follows when accelerating in a straight line (high RPM, maximum speed). The snowmobile is a standard BTX. Only the spring tension of the secondary variator was 2-6. I've done 1-6, I'll be watching.
  3. Yamarus

    Btx le gearing

    What is the maximum stretch that can be done with a native spring? 1/6=70? The standard 3/3=60 was.
  4. Yamarus

    Btx le gearing

    Standard spring. What should I do? It is not possible to replace the standard spring in the near future. The season is in full swing.
  5. Yamarus

    Btx le gearing

    I drive a lot of rough terrain at sea level (a lot of deep snow) and I need an instant lift of the front end. I have a standard BTX LE 153 2.25, 24/50 chain 92. The variator is heated strongly, and the belt is torn. I want to change the gear ratio to 21/49 chain 92 to increase the torque and...
  6. Yamarus

    Chain and gears question

    I have a standard BTX le 153. I drive in deep snow and have torn 2 8jp belts in the last 500 km. My clutch is getting very hot. Based on the specification, I have 24T on top, 50T on the bottom, 92 chains. 8-tooth drive. I have a manual from viper where the maximum that can be set is 21T from the...
  7. Yamarus

    Secondary clutch - Question?

    Made 80° (2-6). It was 60° (3-3). Initial speed is now 3000 rpm. I wonder if this will extend the life of the belt in off-road conditions.
  8. Yamarus

    Secondary clutch - Question?

    I managed to blow two belts for 2600 km on a standard sled. I measured the displacement and got 61 mm. After driving off-road, I have a very hot clutch, both. One of these days I will remove 2 mm from the secondary coupling and I will observe. While the secondary coupling is being disassembled...
  9. Yamarus

    Cracked tunnel behind bearing carrirer

    As a result, it turns out that it is better to remove the wedge from the shaft, even if there is wear on the shaft, in order to avoid a much greater catastrophe - a tunnel rupture. Let it be better to have a gap between the shaft and the bearing?
  10. Yamarus

    Drive shaft bearing

    I think a lot of people have a worn-out shaft and they don't even know about it and keep driving. Maybe it's specially made by the manufacturer and they know about it. If you have no vibrations and the bearing is not jammed, it should work for a long time. I also think that an important factor...
  11. Yamarus

    Drive shaft bearing

    expansion driveshaft saver. https://barnofparts.com/driveshaft-saver Installed shaft protection. It wasn't there before. I'm not sure if this will help, but I hope it will be better this way. That's all there is at the moment.
  12. Yamarus

    Drive shaft bearing

    I took off my own to check. Mileage 2300 km. I cleaned everything and lubricated the bearing. Apparently, the bearing was rotating on the shaft. Installed shaft protection, which was not there before. I'm not sure if this will help. Only the inner edge of the seal (sealing spring) is slightly...
  13. Yamarus

    Primary clutching expert i need help!

    Do I need to lubricate this place when installing the clutch?
  14. Yamarus

    Bought me a Xtx 146" :) Offcourse i had to get it some more ponemeronies :P

    Sorry, the question is off topic. Can you tell me the numbers of these parts in this color? Left side orange panel, left/right blue panels.
  15. Yamarus

    Sidewinder A arms

    The lower levers from the Viper fit the Sidewinder?
  16. Yamarus

    Whats different on B-TX vs viper?

    The lower levers from the Viper fit the Sidewinder?
  17. Yamarus

    What's the best trail exhaust?

    GGB and GSE say no tune is required.
  18. Yamarus

    new gse performance muffler for sidewinder

    Can I install GSE Performance exhaust without tune? I just want to change the exhaust to change the sound, and nothing else. I have a standard sleigh. Here's what they wrote to me in GSE: "You do not need to do anything. just install it and it gains 10HP with no adjustments needed". I choose...
  19. Yamarus

    Big Wheel Kit?!?

    Our guys sell wheels with a set of axles with offset. https://a911tuning.ru/magazin/katki-10-dujmov It's unclear to me if the 10-inch wheels will rest on the track.


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