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propwash

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Russian Bike Nut

Russian Bike Nut (3/3)

  1. Friend had a clutch screw back out. He took it apart and while in there, changed the clutch pack including pressure plate, rod etc. Afterwards, he had trouble with the clutch dragging. I looked at it and we played with bearing blocks (I have many) to increase the actuation length and although better, it was still dragging. He took the tranny off and I see the clutch discs are installed backwards; raised side is facing the engine. I have an old clutch pack, so I played with it on the bench. I couldn't conclude if the orientation mattered much. Does anyone know if the orientation matters? Could this be the cause of the clutch dragging issue?
  2. I believe the engine and tranny will bolt in. You may have to monkey with the drive shaft length if the engine/tranny combo are longer or shorter than the original setup. Keep us posted.
  3. I also found a Velorex nearby, however it is a 560. I have a Ural M63 and the sidecar was removed by the PO years ago for a BMW... I think the M63 needs a hack. However the 560 is very small internally and do not know if it would be worth the effort. I am really holding out for a Sputnik; there have been one or two semi-locally however the seller was too proud. Good luck and keep us posted.
  4. I believe the K65Ts (and rebuild kits) came with 165 jets. You may need to raise the main needle if it is falling on its face. Start at the notch that "raises" the needle one notch above the middle position.
  5. From left to right - Neutral (grn) - Charging (red) - Highbeam (blu) - Oil press (red) - Turn signal (grn) The oil pressure light will be -on- when key is on and engine not running (charging light as well). The oil pressure lamp may flicker or go out after several kicks as the oil pressure has been built up in the system by kicking. Stop kicking (engine not running) and wait, the lamp should stay on.
  6. Yes, I was demonstrating ring gap calculation. See attahced from Russian manual. I did not see P3 listed for K750, however it does not mean it is impossible. May have to source pistons and rings from different manufacturer. Now that I am thinking about it, I believe I saw one once that had 80mm pistons. ring_gaps.pdf
  7. P2-78.4X This is piston diameter marking. P2 = second repair pistons (original, then (P1) first repair bore, then (P2) second bore diameter) Generally, 0.004" per inch bore; 78mm is approx 3" = 0.012" = 0.3mm <-- this is in range of what is mentioned int he Russian repair manuals.
  8. K65Ts are much better than the K68s. All metal and original carbs for the Dnepr 650. I have been running them for over 17 years. There is a tech article about them on the site. Two things - 1) You have to be mindful of ethanol with the original float needle valves as they have a small washer for sealing. Ethanol will eventually dissolve these and the bowls will overflow. Run non ethanol fuel or swap out the needle valves. 2) The main jet post will loosed. There is a "D" washer that is suppose to prevent loosening, but the post will loosen anyway. Loctite the post and then you can forget it. I believe this is covered in the tech article. I have not had reason to pursue different carbs. If was to spend a bunch of time to go CV, I would weld up some adapters and go all in with Bings off a BMW 650 or something and not waste time on the Chinese carbs.
  9. On K750s, the sidecar step is bolted to the sidecar frame (later models were welded), it is just a quick check. After looking over the photos again, I think your step is bolted on as I cannot see the welds. Nice moto - good luck!
  10. Is the sidecar step bolted to the frame or welded? I hope I am wrong with my initial thoughts.
  11. ^^ yes, I believe so, minus the lamp control "ЛК" functionality. This functionality could be returned with a little circuit or a voltmeter.
  12. With the mechanical, It is also nice to be able to adjust activation. The solid state units are a crap shoot now. 15-20 years ago you could buy nice NOS units, throw them on and go. Now, not so much. A friend of mine had trouble with his, so he bought two (he had learned from the past). Both were bad. He purchased another 4 units; one was working properly. Who knows how long it will last. If your bike is wired for the mechanical, I would stay with that model unit. Another plus would be if you have to replace it - when you find a replacement, it will most likely be NOS Soviet made.
  13. The equation - 0.004" per 1" bore works fine. 78mm approx equals 3" bore x 0.004 = 0.012" = 0.3mm which is right in the middle of what the Soviet manuals suggest.
  14. Nice looking moto! I really like the classic looking IZh models. I have a mid-80s Planeta-5. Cheers.
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