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Recent content by Supercub

  1. Supercub

    81 GS1100G Carb Syncronization

    So set the middle two 2cm or .8" lower?
  2. Supercub

    81 GS1100G Carb Syncronization

    I can make restrictors on a lathe to fit the ID of the tube, would a 1/64" hole be enough to provide a steady reading?
  3. Supercub

    81 GS1100G Carb Syncronization

    I need smaller restrictors in the lines as the needles jump like crazy. If I partially pinch the lines I get steady readings but only 4 to 8" Hg.
  4. Supercub

    81 GS1100G Carb Syncronization

    So far no signs of bad wrenching, no rounded screw heads, tool marks, pod filters, etc. same owner since 2008.
  5. Supercub

    81 GS1100G Carb Syncronization

    Its got plenty of power past the flat spot and I can bury the 85'r in seconds. Its electronic ignition. I read that the resistors are for protection of the ignition module and smooth out the spark. The caps were $94 total and I could have put brass slugs in place of the resistors and used R...
  6. Supercub

    81 GS1100G Carb Syncronization

    I'll check the connections. So far I havent found any corrosion on any contacts but I shoukd pull the ignition connections apart.
  7. Supercub

    81 GS1100G Carb Syncronization

    The bike has 4,000 miles on it and has had stumbling issues since I brought it. Valves could be pitted from sitting. I imagine I will see an erratic gauge in that case. I checked valve clearances and reshimmed two tight exhaust valves that were at the low limit. Replaced plug caps due to one...
  8. Supercub

    81 GS1100G Carb Syncronization

    I have screw-in manifold barbs with .087 dia holes, is that small enough? I checked each gauge with a calibrated vacuum source and all check good. What reading should I expect to see at 1650rpm?
  9. Supercub

    81 GS1100G Carb Syncronization

    I brought four round dial vac gauges and vac tubing, I want to sync my carbs after us cleaning. The service manual describes the use of a bar gauge setup with increments but not "Hg values, and that the inner cylinders are to be set differently than the outers. Does anyone know what this...
  10. Supercub

    Strange discovery adjusting valves

    Ok well it cant be that.
  11. Supercub

    Strange discovery adjusting valves

    The half moon rubber fell out of the head at the end of the cam when you pulled the valve cover. You will see the other three at the cam ends. They seal the blank space when put the cover back on.
  12. Supercub

    Setting the timing properly

    Check mcmaster-carr for matching metric orings in buna-n rubber. Planing the head results in retarded can timing. Check the cam timing with a degree wheel. It's a study in itself but will save you from wondering later on. I found a great tutoral on it when I checked my CB160. It was 10 deg...
  13. Supercub

    1979 gs550e

    Looking at the the fasteners, the heads are unblemished and everything fits up as untouched. The signals and tail light bracket are bent up, I believe from the bike being tossed around as it sat unused for years. It could be that the start of the L models in 1979 was hastened at the factory and...
  14. Supercub

    1979 gs550e

    The VIN stamping.
  15. Supercub

    1979 gs550e

    I brought this GS550E for $300. It hasn't ran in a while but it's got good bones and hasn't been messed with. First reaction is that it's an L model but the VIN stamping and tag say that's an E.
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