Recent content by cmarts

  1. cmarts

    TX650 Wiring Questions

    Thanks for the info. I was thinking of purchasing the harness but I wanted to keep it a bit more simple, since the PO replaced the wiring at the rear already. In terms of signal lights, I rode this bike for 5 months waving my hands in the air to change lanes and never had problems (not yet...
  2. cmarts

    TX650 Wiring Questions

    I recently have been trying to get my bike back up and running after an electrical short in the headlight caused a fire. After separating the bundle of melted plastic in the headlight I decided to remove some of the circuit that wasn't being used. I started by taking the wiring diagram and...
  3. cmarts

    1974 xs650 mid range hesitation help

    Sorry I should have specified. The needle currently installed is the 4N8.
  4. cmarts

    1974 xs650 mid range hesitation help

    Hey guys, Im down to the last straw with this bike. Here are the specs: -1974 xs650 with 7000 original miles. -early bs38 carbs with #127.5 mains, recently reduced from #130 mains because needle clip was at top of needle. #45 pilot jets. 4N8 needle -XS pod filters, straight pipes -carbs are...
  5. cmarts

    1974 tx650a Hesitation Issue

    Greased advance, cut springs, advance now working perfect. Bike definitely accelerating and idling better than before. Go to rip down the street and no change. Still at 3000-3500 rpm major hesitation. Back to checking the carbs i guess...unless anyone has any other ideas.
  6. cmarts

    Only firing on one cylinder.

    I had the same issue with my bike when I first got it. Turned out the one carb on the side that wasnt firing required alot more cleaning. Took it apart again and went through it with a small wire, lots of carb cleaner, and an air compressor.
  7. cmarts

    1974 tx650a Hesitation Issue

    So how exactly do I get access to these areas that require grease? I see theres a 10mm bolt on the advance rod and a large retaining nut. Points side I could probably figure out but after taking the weight and springs off the advance side im not sure what the next step is.
  8. cmarts

    1974 tx650a Hesitation Issue

    i think this is the problem. Advance weights were not snapping into place, noticed dry metal rubbing sound coming from cam when it was rotated. will clean advance unit and repack bearing with grease. Is there a detailed manual for this? My factory manual doesnt mentioned this at all, just...
  9. cmarts

    1974 tx650a Hesitation Issue

    I have synced multiple times, they are close. Engine sounds good. Been talking to others with the same issues and they think it may be the advance unit.
  10. cmarts

    1974 tx650a Hesitation Issue

    Left coondensor: 4.5 ohms primary, 13.75k ohms secondary Right condenser: 4.3 ohms primary, 13.3k ohms secondary Seems to be good.
  11. cmarts

    1974 tx650a Hesitation Issue

    Never mind, should have consulted with the factory manual before asking....will post results of coil testing
  12. cmarts

    1974 tx650a Hesitation Issue

    Fixed wiring. Attempted to perform dead cylinder method. Left cylinder couldn’t keep bike running unless I gave lots of throttle. It hesitated. My guess is the brand new coil is bad, thanks mike. I did notice that the left coil was quite warm after idling for a couple minutes while the right one...
  13. cmarts

    1974 tx650a Hesitation Issue

    Could this fraying on the points wire cause a problem?
  14. cmarts

    1974 tx650a Hesitation Issue

    Sorry if I wasn’t clear enough describing my wiring, but yes that is exactly how I have mine wired. I took it out for a spin and the problem persists. I am now checking timing and valves.
  15. cmarts

    1974 tx650a Hesitation Issue

    Checked the wiring under the tank last night. The PO had replaced 1 condensor. I noticed one of the wires was fraying at the bullet connector crimp so I replaced with new bullet connector. The other wire from the same condensor was soldered pretty roughly and wrapped in electrical tape, replaced...
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