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  1. Shad
    Post

    Coil Issue Perhaps?

    I hooked up a multimeter on the 2-3 coil and it's nowhere near spec on the high side. The low side seemed pretty good, except for the fact that...
    Post by: Shad, Oct 21, 2008 in forum: XJ Technical Chat
  2. Shad
    Thread

    Coil Issue Perhaps?

    I have a new idea about why I am having so much trouble with #2 and #3 cylinders firing. I'm wondering if it's my coil pack. The right side coil...
    Thread by: Shad, Oct 21, 2008, 2 replies, in forum: XJ Technical Chat
  3. Shad
    Post

    ...and now we're running way too lean...

    Sounds like a good test. Should I leave the float bowls full of fuel when I do this? Also, would it be odd that all of the jets were blocked?
    Post by: Shad, Oct 19, 2008 in forum: XJ Technical Chat
  4. Shad
    Post

    1980 Midnight Special Shifting Issues

    I'll do that tomorrow while I'm at work. Hopefully that will do it.
    Post by: Shad, Oct 19, 2008 in forum: Other Motorcycles
  5. Shad
    Post

    1980 Midnight Special Shifting Issues

    Well, I've got fuel, spark, and air. Wet compression is just over 150psi on all three cylinders. I'd think the bike would start. The only...
    Post by: Shad, Oct 19, 2008 in forum: Other Motorcycles
  6. Shad
    Post

    ...and now we're running way too lean...

    I am positive that the main fuel jets are #120, and the pilot fuel jets are #40. The main air jets are #225, and the pilot air jets are #80. I...
    Post by: Shad, Oct 19, 2008 in forum: XJ Technical Chat
  7. Shad
    Post

    1980 Midnight Special Shifting Issues

    I got the transmission and shift selector all sorted out. I put the bike back together today and cleaned the carbs out. The day I got the bike it...
    Post by: Shad, Oct 18, 2008 in forum: Other Motorcycles
  8. Shad
    Post

    ...and now we're running way too lean...

    that's what I thought as well. I don't know what else to do though. Anything less than 6.5 turns and I cannot even idle the bike without the...
    Post by: Shad, Oct 18, 2008 in forum: XJ Technical Chat
  9. Shad
    Post

    ...and now we're running way too lean...

    I did bench sync the carbs. I have the float levels set just right on all four carbs. I tried to tune it a bit more today, but still no luck....
    Post by: Shad, Oct 17, 2008 in forum: XJ Technical Chat
  10. Shad
    Post

    ...and now we're running way too lean...

    I actually rode it around for a day on prime, ran about the same as it does in on position. I can't find any vacuum leaks at all on the carbs....
    Post by: Shad, Oct 17, 2008 in forum: XJ Technical Chat
  11. Shad
    Post

    1980 Midnight Special Shifting Issues

    Someone has definitely been in there before me. The bolt holding the middle gear in place was not the original allen head. It has been replaced by...
    Post by: Shad, Oct 17, 2008 in forum: Other Motorcycles
  12. Shad
    Post

    ...and now we're running way too lean...

    I only changed the main and pilot fuel jets in the bottom of the carbs. I did not change the air jets in the tops of the carb under the hats and...
    Post by: Shad, Oct 17, 2008 in forum: XJ Technical Chat
  13. Shad
    Thread

    ...and now we're running way too lean...

    Well, I rebuilt the carbs. Made sure there were no vacuum leaks. Got myself a nice mercury free manometer carb sync set. If I set my pilot mixture...
    Thread by: Shad, Oct 16, 2008, 14 replies, in forum: XJ Technical Chat
  14. Shad
    Thread

    1980 Midnight Special Shifting Issues

    I sorta stumbled into buying this bike the other day. It's a 1980 XS850 Midnight Special. 50 bucks, so I couldn't say no to the price. The problem...
    Thread by: Shad, Oct 16, 2008, 8 replies, in forum: Other Motorcycles
  15. Shad
    Post

    Round 2

    valve clearances are all in spec. I could not get the bike to run with any of the pilot jets out only 3 turns. Initially I had them all out 2 1/2...
    Post by: Shad, Sep 20, 2008 in forum: XJ Technical Chat
  16. Shad
    Post

    Round 2

    Well, got my carbs rebuilt. The orings I ordered for the pilot mixture screws were slightly smaller than the original ones, but I think they'll...
    Post by: Shad, Sep 19, 2008 in forum: XJ Technical Chat
  17. Shad
    Post

    Round 2

    The dry compression tests I've done on it have shown results pretty consistent with the wet test, only about 80% of the psi all around. My "clunk...
    Post by: Shad, Sep 10, 2008 in forum: XJ Technical Chat
  18. Shad
    Post

    Round 2

    Cool. I remember looking at that chart before and not knowing what I was supposed to do with it lol, but I get it now. I put together a list for...
    Post by: Shad, Sep 10, 2008 in forum: XJ Technical Chat
  19. Shad
    Post

    Round 2

    Just sooty black. The floats are set exactly where spec says, so I figured that would be the only way to flood out the cylinders like that. What...
    Post by: Shad, Sep 10, 2008 in forum: XJ Technical Chat
  20. Shad
    Post

    What did you do to your Yamaha today?

    Today I rechecked all my specs and compression. Reset all my Mixture Screws. Retested my Sync. Tested Battery charge. Tested Coils. Cleaned plugs....
    Post by: Shad, Sep 10, 2008 in forum: XJ Technical Chat
  21. Shad
    Post

    Howto: Replace your stuck carb drain screws

    I managed to break my extraction bit off in my screw. Then I managed to break a cobalt bit trying to drill that out. Then I managed to drill a...
    Post by: Shad, Sep 10, 2008 in forum: XJ Technical Chat
  22. Shad
    Thread

    Round 2

    Alright, so I was about to rebuild my bottom half, but I don't think that's the problem with my bike. I did a wet compression test today and came...
    Thread by: Shad, Sep 10, 2008, 12 replies, in forum: XJ Technical Chat
  23. Shad
    Post

    low compression in #2, maybe another problem?

    I checked the exhaust pipes, no blockage. I rented a garage today to work on the bike. I'm going to do a full tear down. I've decided I most...
    Post by: Shad, Sep 5, 2008 in forum: XJ Technical Chat
  24. Shad
    Post

    low compression in #2, maybe another problem?

    Anyone know what size jets (main and pilot) are recommended at 5000+ feet altitude?
    Post by: Shad, Sep 4, 2008 in forum: XJ Technical Chat
  25. Shad
    Post

    low compression in #2, maybe another problem?

    There is a loud knocking sound whenever I start up the bike for the first time after it cools down for a few hours. It's the loudest behind the...
    Post by: Shad, Sep 4, 2008 in forum: XJ Technical Chat
  26. Shad
    Post

    low compression in #2, maybe another problem?

    well, it's barely running now. I put an infrared temp gauge all over the exhaust system. My number 2 cylinder has spark, but is not igniting. I'm...
    Post by: Shad, Sep 4, 2008 in forum: XJ Technical Chat
  27. Shad
    Post

    low compression in #2, maybe another problem?

    Yeah, I was kinda thinking that would cause a lean condition as well. But I definitely have a very rich condition going. I'm still not finding any...
    Post by: Shad, Sep 2, 2008 in forum: XJ Technical Chat
  28. Shad
    Post

    low compression in #2, maybe another problem?

    I have NGK plug wires that are newly spliced in on the bike now. I took a wire brush and some fine grit sandpaper and shined up the ground eyelets...
    Post by: Shad, Sep 1, 2008 in forum: XJ Technical Chat
  29. Shad
    Post

    low compression in #2, maybe another problem?

    well, today i tore the carbs off the bike...8 times. I made every precise adjustment I could to them. Followed every post and manual I could dig...
    Post by: Shad, Aug 30, 2008 in forum: XJ Technical Chat
  30. Shad
    Post

    low compression in #2, maybe another problem?

    Sounds like a plan. I'll keep trolling the xj forums and trying anything I can think of tomorrow at work. I'll check that air filter for sure, and...
    Post by: Shad, Aug 30, 2008 in forum: XJ Technical Chat
  31. Shad
    Post

    low compression in #2, maybe another problem?

    I'll check the air filter shelf in the morning. As far as the pilot air mixture screws being different than the ones that shipped with the bike,...
    Post by: Shad, Aug 29, 2008 in forum: XJ Technical Chat
  32. Shad
    Post

    what hasnt gone wrong with your bike?

    I work on my bike about 10 hours for every hour I ride it. I kinda expect to tho, seeing that it's 26 years old and who knows how many people it...
    Post by: Shad, Aug 29, 2008 in forum: XJ Technical Chat
  33. Shad
    Post

    low compression in #2, maybe another problem?

    I'm not sure where the PO got this bike. It could have been from low elevation. Anyone know what proper jetting is for 5000+ feet? I'd be willing...
    Post by: Shad, Aug 29, 2008 in forum: XJ Technical Chat
  34. Shad
    Post

    For Sale XJ PARTS FOR SALE---FOR ALL MAXIM, SECA, AND TURBO MODELS

    Re: XJ PARTS FOR SALE---FOR ALL MAXIM, SECA, AND TURBO MODEL Thanks again for the speedy shipment. It's nice to know you've always got what I...
    Post by: Shad, Aug 28, 2008 in forum: For Sale, Trade/Swap, Wanted
  35. Shad
    Post

    low compression in #2, maybe another problem?

    Wet compression test results 130-115-120-120. Haven't had to add any oil since my last oil change, but haven't ridden much since I last changed...
    Post by: Shad, Aug 28, 2008 in forum: XJ Technical Chat
  36. Shad
    Post

    low compression in #2, maybe another problem?

    OK, checked all my valve clearances today, all are in spec. I took the carbs off, checked the floats, bench synced again, synced with vacuum gauge...
    Post by: Shad, Aug 28, 2008 in forum: XJ Technical Chat
  37. Shad
    Post

    low compression in #2, maybe another problem?

    Denver Colorado
    Post by: Shad, Aug 21, 2008 in forum: XJ Technical Chat
  38. Shad
    Post

    low compression in #2, maybe another problem?

    Still haven't had a chance to pull the valve covers off, been really busy with work/school and volunteering at siggraph this year. I managed to...
    Post by: Shad, Aug 21, 2008 in forum: XJ Technical Chat
  39. Shad
    Post

    For Sale XJ PARTS FOR SALE---FOR ALL MAXIM, SECA, AND TURBO MODELS

    Re: XJ PARTS FOR SALE---FOR ALL MAXIM, SECA, AND TURBO MODEL Thanks again Chacal. Parts got here incredibly fast and was just what I needed. I'm...
    Post by: Shad, Aug 7, 2008 in forum: For Sale, Trade/Swap, Wanted
  40. Shad
    Post

    low compression in #2, maybe another problem?

    I've been working on that for the last few days. I just don't want to lean them out too much. I have a "pop-poppity-pop" sound already which makes...
    Post by: Shad, Aug 4, 2008 in forum: XJ Technical Chat
  41. Shad
    Post

    low compression in #2, maybe another problem?

    If I'm having issues with bogging down when accelerating at low RPMs, especially from a stop, could that be anything other than a carb issue? I'm...
    Post by: Shad, Aug 4, 2008 in forum: XJ Technical Chat
  42. Shad
    Post

    low compression in #2, maybe another problem?

    Originally I didn't open the throttles at all. For the wet test I turned the throttle to full open while turning the engine over. Looks like I'll...
    Post by: Shad, Aug 1, 2008 in forum: XJ Technical Chat
  43. Shad
    Post

    low compression in #2, maybe another problem?

    it was looking fine, a nice brown and not sooty. as of today all of my plugs are showing too rich and I'm guessing this oily wet substance is...
    Post by: Shad, Aug 1, 2008 in forum: XJ Technical Chat
  44. Shad
    Post

    low compression in #2, maybe another problem?

    I did a wet compression test today at work. They came back 130-115-120-120. So my number 2 cylinder is pretty close, although slightly lower than...
    Post by: Shad, Aug 1, 2008 in forum: XJ Technical Chat
  45. Shad
    Post

    low compression in #2, maybe another problem?

    I can't find anywhere explaining how to find TDC on each cylinder. I can do it on a car, but not sure how to do it on a motorcycle engine. Anyone...
    Post by: Shad, Aug 1, 2008 in forum: XJ Technical Chat
  46. Shad
    Post

    low compression in #2, maybe another problem?

    I'd like to do a leak down test, but haven't found any instructions to find TDC for that cylinder. I'll reread through the haynes manual and see...
    Post by: Shad, Aug 1, 2008 in forum: XJ Technical Chat
  47. Shad
    Thread

    low compression in #2, maybe another problem?

    So, I bench synced my carbs. Then I synced them with vaccuum guages and YICS tool I got from Chacal. Then I colortuned and got the pilot air...
    Thread by: Shad, Jul 31, 2008, 45 replies, in forum: XJ Technical Chat
  48. Shad
    Post

    For Sale XJ PARTS FOR SALE---FOR ALL MAXIM, SECA, AND TURBO MODELS

    Re: XJ PARTS FOR SALE---FOR ALL MAXIM, SECA, AND TURBO MODEL Thanks Chacal! The parts I ordered from you arrived very quickly and in great...
    Post by: Shad, Jul 21, 2008 in forum: For Sale, Trade/Swap, Wanted
  49. Shad
    Post

    Runs rough and dies when engine hot

    Well, I definitely have some pretty good leads now to getting this bike running correctly. Thanks for the advice, and thanks Chacal for being...
    Post by: Shad, Jul 11, 2008 in forum: XJ Technical Chat
  50. Shad
    Post

    Runs rough and dies when engine hot

    So I pulled the spark plugs today. They're just over a week old and already thick with black soot. As far as the fuel in the oil, that's there...
    Post by: Shad, Jul 10, 2008 in forum: XJ Technical Chat
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