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  1. 1

    Possible Ignition Issues?

    Also, I have a '74 KZ400 that I am starting to strip down, does anyone know of any good online resources for these little bikes?
  2. 1

    Possible Ignition Issues?

    Thanks peanut! I have done the slide test and it checks out free and clear. Update on the bike: I put on a new coil and non-resistor plugs and kept the resistor caps. The bike is nice and snappy now with no hesitation and pulls real smooth. I haven't gotten a chance to take it for a longer...
  3. 1

    Possible Ignition Issues?

    Hey guys, I'm back out in the shed a little bit with the nicer weather. As i've started looking into this again and looking into options for new coils and such, i've found something interesting. I still have to confirm it but I'm almost certain I have resistor caps on the bike right now along...
  4. 1

    Possible Ignition Issues?

    Thanks guys! XSLeo: You can feel free to berate me if this is a completely dumb question and a lack of understanding on my part, but I was under the impression that the coils weren't receiving any voltage until the motor was actually turned over? I'm not really clear on how the TC ignition...
  5. 1

    Possible Ignition Issues?

    Thanks guys, mrtwowheel- I hadn't thought of the gas cap angle before...when it sits out in hot weather I can hear a whining noise coming from the tank and expanding gases, I always thought that was normal but maybe not? gggGary- I had heard that these non-adjustable needles could be the...
  6. 1

    Possible Ignition Issues?

    Hey all, It has been a long while since I have posted here, but the long winter months have gotten me thinking again. I have a 1980 XS650 Special, and I have been chasing very intermittent issues with it over the past few years. Up until this point I have always thought it to be fuel related...
  7. 1

    Mikes sync gauge

    Anybody ever used the sync gauges offered thru mikes? Give me any revues ya got
  8. 1

    Valve adjustment

    I'm a newby at some of the engine adjustments but can anyone explain in detail how to adjust the valves on a stock '80 xs to the right tolerances?
  9. 1

    XS hasn't been shifting smooth

    Hey guys, my xs started doing this last season but i've learned to live with it...now i'm starting to wonder what I can do to fix it. The clutch engages fine and normal from a stop and going into 2nd gear...but going into 3rd, 4th, and 5th gear the clutch does not engage until the end of the...
  10. 1

    No spark...where do I start?

    So I've had my '80 xs for a little over a year now, and am all too familiar with the little oddities and frustrations of owning a vintage bike. So heres my problem... I've had it running a half a dozen times thus far this season, and out for at least one good ride, and it ran great! Then it...
  11. 1

    Free flow tapered muffler?

    XSLeo: Have you done any work to the carbs to try and rectify such a problem? Any changing of jet sizes? I'm just trying to get as much feedback as possible to see if i'll have to do much monkeying to get these to work. I know alot of bikes are different, but I'm just trying to see if there...
  12. 1

    Free flow tapered muffler?

    Well its good to hear that you had luck with the stock jets, not sure if mine will be a little different since I am running dual pipes, but we shall have to see! Too bad winter has set in and I'll have to wait to do any real tests...but hopefully I can use this time to redo a few needed parts...
  13. 1

    Free flow tapered muffler?

    I upped the pilot jet because I was having some trouble getting rid of some popping and choppiness at idle to about 1/4 throttle, someone on here suggested it and it seemed to work out pretty slick! I upped it from the standard 42.5 in my bike to a set of 45's. Took care of the popping and...
  14. 1

    Free flow tapered muffler?

    Well good to know that i'm on the right track...I wanted to make the bike a little louder but not deafeningly loud without mufflers. Again i'm pretty green to all this, but are the K N filters a pod style? I have already increased the pilot jet to improve idling. Can I expect some messing...
  15. 1

    Free flow tapered muffler?

    Alright, so i'm pretty new to the xs world. Just bought my first this past summer, and focused on just getting it to be a reasonably reliable ride on a virtually non-existent budget. Now I am starting to conceptualize some mods and am looking for some new mufflers. I like the look of the...
  16. 1

    Bike idles choppy, and pops

    Well, thanks for all the help, I have her running pretty well now...I installed one size larger pilot jets, new float bowl gaskets, new intake gaskets, and new carb holders(the old ones were pretty cracked) I synced it as best I could without the gauges. It no longer pops at all, either at...
  17. 1

    Bike idles choppy, and pops

    Right after I got the bike I turned the mix screw out to about 3 turns. I'm thinking maybe I have an air leak somewhere...might try new carb boots and gaskets along with a new vacuum line. They have some cracks. Also another cleaning...I have heard that you should discard the little screen in...
  18. 1

    Bike idles choppy, and pops

    Well it doesn't really pop much anymore...except sometimes when I let off the gas on decelleration. Today I just noticed when I slow down from a stop it will stutter and want to die but if I caught it and gave a little rev it would come back up to normal and idle seemingly fine...
  19. 1

    Bike idles choppy, and pops

    Well, I took the carbs apart and cleaned them right after I got the bike...put in new air filters(that helped alot)and stuck everything back together. I ran it for about a month with the pop on the right side till I just got sick of it. I had it idling at about 1500 but the popping went away...
  20. 1

    Bike idles choppy, and pops

    Alright, so I'm pretty new to the world of xs twins but i've been learning alot. My bike has been running decent but has recently started acting up...to my knowledge the bike is mostly stock. I synced the carbs as best I could with the old glass bottle method. It will idle fairly well at the...
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