Recent content by spungle

  1. spungle

    Shifter arms

    You can try deepl.com to translate. Just copy and paste the text. Deepl is a fine tool to translate... This blog is my only source of this 4,7mm. I love to know if this is mentioned elsewhere in a service bulletin or manual. But the main failure you should look for are wear and bent like...
  2. spungle

    Shifter arms

    Sorry, have written it wrong. The shifter forks should be thick 4,7 not 4,9mm. Have it from this german blog:http://www.cco-classicracing.de/motorradumbau/xs650-motor/xs650-motor-instandsetzung/ But couldn't find another reference to crosscheck this. Is there another known reference to this value?
  3. spungle

    Shifter arms

    Sorry shipper, but this bottom end is my winter project, not to sale.
  4. spungle

    Shifter arms

    Hello, for reference from a spare engine. the number 6 looks very different near the hole for the shift drum to number 5. The machined part dimension of your #6 is completely different to #5. The numbers 256-X (1,2,3) are the indicator on which place it should be. the other numbers (your...
  5. spungle

    Changing Intake ports to a D shape for better flow.

    Hey Christian, thanks:) My crank was rebuild by an reputated member of the German forum. He rebuilded many xs650 cranks for over a decade, if not many more years. He weld cranks for racing (sidecar) xs650, some of them with over 1000ccm. If there were problems with his welding I would know it...
  6. spungle

    Changing Intake ports to a D shape for better flow.

    Hello, today I finally had the opportunity to compete against another xs. This one has a port and polish head, tm34 carburetor like mine and an original exhaust. No chance against mine, not to compare. Starting point was both side by side, 3rd gear, about 70km/h, then full throttle. Mine is...
  7. spungle

    Hydraulic clutch slave diameter?

    If all went right please tell us which parts you used and how you get all together. I'm very interested in it.
  8. spungle

    Changing Intake ports to a D shape for better flow.

    I count 17/ 34 teeth... Stock euro is 17/33 What's US stock?
  9. spungle

    Changing Intake ports to a D shape for better flow.

    I have fabricated some spigot Übergänge. So today I've driven the first time with full throttle in high rpm's. What I can tell is this thing goes like hell. Even with the small xs perfomance airpods from 7000 to 8000 rpm it pulls like a frightened train;) really it's crazy. My arms getting...
  10. spungle

    Changing Intake ports to a D shape for better flow.

    And i will change the rear sprocket in the near future to the stock one, i now have enough drehmoment:cool:
  11. spungle

    Changing Intake ports to a D shape for better flow.

    The 6500 is my limit for the first miles. Witch limit with the welded crank and my engine combination are safe to drive, so that the engine is not over stressed? 8500 9000. I don't want to race this thing like hell, but if i must pass some cars or a harley then i will give all:devilish:. When...
  12. spungle

    Changing Intake ports to a D shape for better flow.

    this afternoon i will count the teeth for you, but in my memorys i have changed from a 33 to 32 sprocket :umm:
  13. spungle

    Changing Intake ports to a D shape for better flow.

    my reed valve, works like a charme and flow well with the engine pulses. https://www.ebay.de/itm/TOPRAN-ZYLINDERKOPF-Ventil-Kurbelgehäuseentlüftung/383018203362?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649 oem rubber reduction was swollen. tiny piece big impact
  14. spungle

    Changing Intake ports to a D shape for better flow.

    Last two days small test drives. 3 times the Simmerrings rubber seals from points advance are popped out, oil every where:confused: To much pressure inside the engine. My investigations lead me to the engine breather. Bingo, the original rubber of the breather reduction has swollen. From outside...
  15. spungle

    Changing Intake ports to a D shape for better flow.

    Thanks for that hint, did you have a recommendation?
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