The Honda XL (and other vintage singles) thread!

Discussion in 'Old's Cool' started by dorkpunch, Jan 18, 2009.

  1. cam14

    cam14 Been here awhile

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    Jun 27, 2010
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    222
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    Texas
    Looks like a fun build though not my personal taste. Brings back fond memeries of my 74 XL 100. Thanks for sharing.

    And here is a real steem powered bike.
    [​IMG]
  2. Rango

    Rango Phaneropter

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    Kingdom of Belgium
    And in its wake a trail of swooned health 'n safety people.
    :rofl
  3. Mr. Ray

    Mr. Ray Chemically Enhanced

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    Mar 18, 2006
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    3,652
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    Pisgah! Motorcycle and MTB heaven.
    I'm no carb expert for sure
  4. Regdor

    Regdor n00b

    Joined:
    Apr 22, 2013
    Oddometer:
    1
    Hi, new to the forum and need some help. Just got a 1974 XL175. Very good condition except the previous owner was trying to fix a spark problem and disconnected a lot of the wiring trying to fix it. I was able to get all the wiring back to original except I have a green wire in the battery location and have no Idea where it goes. The bike was missing a battrey when i got it and that seems to be what was wrong with the spark and the bike runs great now but I have no idea where that green wire is supposed to go, it has a 1/4" push on connector on it but no place to put it?? any help would be appreciated, any chance someone could pull their cover off the battery area and look around for a green wire? its not the negative for the battery and the wiring diagram is no help with this. i connected it to the green negative wire on the battery just so it is grounded but if it is suppsed to ground a component i would like to know what it is. Thanks
  5. Kanook

    Kanook Adventure zymologist

    Joined:
    May 2, 2005
    Oddometer:
    408
    The bike runs great. Ignorance is bliss lol. Green is usually ground wires so I would guess that to the frame or the battery would be a safe bet.
  6. jtn

    jtn Been here awhile

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    Oct 7, 2006
    Oddometer:
    120
    Hi folks, anyone know how a 70's xl350 stator compares to the tl250? In the middle of converting a TL to 12v, and the stock stator is only putting out 4vac at idle, 6.5 when revved - was hoping I could just swap in one from an XL and call it good, not sure rewinding would do any good since there aren't any unwrapped poles (it has only two winding poles) . . .
  7. EnduroRdr

    EnduroRdr Woods Racer & D/S Rider

    Joined:
    Feb 15, 2008
    Oddometer:
    865
    Location:
    Formerly South MS, LR-Ar, Houston-Tx, now BR-La
    This thread got me thinking about my trusty xl350:

    [​IMG]

    That xl350 was one of my all time favorites:
    Wheelies for miles - more fun than prom sex :lol3
    [​IMG]

    Heading out with my buddy: he and I both had 350's (a 73 & 74)
    [​IMG]
    [​IMG]

    [​IMG]
    [​IMG]

    Here's something crazy a few of you will enjoy - back in 82 I stuffed a late 70s xl125 motor stuffed into a yamaha monoshock yz125 frame.
    [​IMG]

    Damn that was a long time ago: you could still buy oil in round cans :rofl
    [​IMG]

    [​IMG]

    Honda had just made the xr200 with ProLink suspension - so I named my home made version of the XL mtr in YZ frame the - "FroLink"
    [​IMG]

    [​IMG]

    [​IMG]

    Heding out one sunday to ride the Frolink with my buddy and his xl125 - we had found this goofy kids space helmet for the pic :eek1
    [​IMG]

    Another day resting by the creek with the Frolink!
    [​IMG]

    Also Had an 78 xl250 too, but could not find a good pic of that one:
    It;s stuff in the shed with a few other relics.
    [​IMG]
  8. brucifer

    brucifer Long timer

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    Eureka, Ca.
    Awesome pics and back story EnduroRdr! Thanks for sharing!
  9. One Fat Roach

    One Fat Roach honey badger

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    Mar 23, 2013
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    bellingham
    great photos!!
    Wow its rare to see the bike in pics from back in the day.

    Looking to sell my 1980 XL250, check the flea market under regional and Pacific Northwet.
  10. mark1305

    mark1305 Old Enough To Know Better

    Joined:
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    Oddometer:
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    Location:
    Merritt Island, FL
    I just had the chance to look over the carb setup on an 83 XL250 I acquired. I was slightly surprised at the complexity of the top part of the carb: in addition to the throttle cable it has two more cables (one more than I expected); plus a fancy looking carb top and what appears to be a fast idle cam.

    Before I tear into it, are the any specific oddities or weirdnesses to check out before trying to cleanit up and test fire the motor? This carb looks slightly more complex than even a CV type. (Of which I have too much experience with Mikunis and Bings) :ear
  11. dorkpunch

    dorkpunch Oops...

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    Does it have the "double barrel" carb? I've heard they can be a bit of a pain to get set up right. The cables you are seeing are actually TWO throttle cables and probably a choke cable- there is a push and a pull throttle cable.
  12. mark1305

    mark1305 Old Enough To Know Better

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    Thanks. And duhh me.... I didn't even notice the push-pull throttle on the bars. I think my mind was still stuck on the car I'd been working on all day prior to looking over the bike.

    It is a single barrel carb. And the choke does indeed have a fast idle cam. I was just too tired to absorb what I was looking at.

    I think the next step will be to change the oil, hook up my small testing gas tank with fresh fuel, and see if it fires. After that will come the real carb and fuel tank cleaning. Luckily the fuel tank looks pretty good on the inside. Will be interesting to see what kind of shape the carb is in.
  13. cvd6262

    cvd6262 n00by-est

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    Jan 26, 2013
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    Utah
    Well, putt-putt passed her safety inspection. I went to the DMV and discovered that the seller didn't sign the title. Oops. No problem, he's a good friend and I'll get that fixed tonight.

    BUT

  14. Spirit1dog

    Spirit1dog Been here awhile

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    Feb 19, 2013
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    102
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    South Central WI
    hey guys, new to ADV although I have been reading for some time. Stumbled across this thread. Seems to be about the only place left for the old XL'son the interwebs.

    Here are before and after picts of my '80 XL500s. Got it in a trade for a CX500c that was not being ridden.



    Before
    [​IMG][​IMG]

    After
    [​IMG][​IMG]
  15. cvd6262

    cvd6262 n00by-est

    Joined:
    Jan 26, 2013
    Oddometer:
    17
    Location:
    Utah
    Aside: Spirit1dog: Sick (as in awesome) color!

    First, my 1981 XL185s is registered and ready for street riding. I almost took her on Skyline Drive (Wasatch Plateau, Utah) today, but my buddy fell through. (grrr.)

    Although the engine runs great (there is no knocking, and it has a good, deeper-than-you-would-expect note from 2nd gear on up), I decided to check the valve clearances. I have the Haynes manual, and I've watched a bunch of videos online about it. It didn't seem so hard.

    Problem #1: Finding Top-dead-center was harder than I thought it would be. I opened the crankshaft access and the viewport for the flywheel markers, and started turning the crank "anti-clockwise" (as stated in the manual). The wheel turned easily about a quarter turn or so, then got harder. If I pushed through, it would snap about another quarter turn past the markers. The only way I could find the "T" mark was by turning the wheel back clockwise.

    Problem #2: Once I found the "T", the flywheel wouldn't stay on it. It would spring an inch counter-clockwise. I put a gas can against my wrench so it would hold it in the right spot.

    Problem #3: There appears to be zero clearance between the adjuster screws and the valve at "T". I didn't adjust them though because 1) the bike is running fine and 2) I'm not sure my timing is right, so I didn't want to mess up anything.

    When the flywheel "T" is visible, I can rock the crankshaft a little bit left and right without the valves moving. I think this means I'm at TDC, but I'm not sure.
  16. Spirit1dog

    Spirit1dog Been here awhile

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    Remove the spark plug, it will make it easier to find TDC. Avoid turning the engine clock-ways it could mess up the cam chain. Tight valves will eventually lead to hard starting, take your time and you can get them into spec.
  17. pommie john

    pommie john Long timer

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    Brisvegas, Australia


    There are two TDC points in a four stroke cylinder. TDC on compression , and TDC on overlap .

    You need to adjust the valves on the compression stroke which is when there will be clearance at the valve adjusters. If the engine wants to "turn away" from TDC it's probably on the overlap stroke in which both valves are slightly open.

    Turn the engine another 360 degrees and see if it is happy to stay at TDC. I suspect that's the problem and you should find that there is clearance at the valve adjusters too.


    Another way to ensure you're at the correct TDC is to watch the inlet valve open, then close... you want the next TDC after it closes.
  18. EnduroRdr

    EnduroRdr Woods Racer & D/S Rider

    Joined:
    Feb 15, 2008
    Oddometer:
    865
    Location:
    Formerly South MS, LR-Ar, Houston-Tx, now BR-La
    Nice job on the XL500!

    Although you could have made good use of that old CX500 too:
    Check mine out :

    [​IMG]

    The Build story: http://www.twtex.com/forums/showthread.php?t=46633
  19. Spirit1dog

    Spirit1dog Been here awhile

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    Feb 19, 2013
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    102
    Location:
    South Central WI

    Sweet build. I thought about doing something similar. Then this XL came up and I did a title for title trade. My CX had just sat in the garage and it was a C model besides. I do like the 280# obesity of the XL.
  20. hammed

    hammed Adventurer

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    Dec 2, 2012
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    51
    Location:
    Iran;Tehran