Announcement

Collapse
No announcement yet.

Carb/backfire question

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Carb/backfire question

    Hi Everyone,

    A while back I was turning the bike around in the yard, and it was a bit damp. I was heading back toward the drive, and I felt that the bike was sluggish. Turns out it was simply really muddy and I was spinning out(About 3/4 open throttle in 1st)

    Well when the rear tire hit the edge the the pavement, WOA!!!! Guess she wasn't sluggish. I didn't drop her or fall off, but I did stall it. It was slightly cranky immediately afterward, and didn't want to start right back up like usual(this problem has since persisted). When it did, it was backfiring slightly out of the left(As sitting on the bike) tailpipe. Not a great deal, but some. This was accompanied by the slightest white smoke-like stuff. The bike continued to do this whenever run for the remainder of the season. Still drove and shifted fine.

    Well, I've since gotten her inside and am going through getting stuff done. Some of the backfire I attribute to the gas. Turns out that the gas indicator wasn't working properly. I was at the dregs of the tank, and it needs a rinse.

    However, upon draining the carbs, I discovered that the second carb on the left side(as sitting on the bike. If numbered left to right, would be number 2) had what seemed significantly more gasoline in it than the other three. Not ridiculous, but noticeable.

    I was wondering if this might have something to do with the backfiring as well. Carb clean in order? It seems weird since it wasn't backfiring before I ended up going unicycle with it, and they'd recently been done. My other question is, might I have bent something when I went from the mud to the driveway. The symptoms all started immediately after that.(Including my starter being a PITA since. Occasionally I'm getting a whirring with no engaging.)

    Anyway, wondering if I might get some advice on what I might want to check for, or if I'm just being paranoid.

    Much appreciated,

    Spider

    P.S. There's been no gas backup into the airbox, and the plugs match across the board.
    1978 XS1100
    "Of all the adversaries I have faced, I was the worst."

  • #2
    You may want to check your float heights just to be sure no 2 did not change.

    As to the starter, I wonder if your battery is not strapped down good and tight if it shorted to the frame in the bumping around there and caused your battery to be weak now?
    Life is what happens while your planning everything else!

    When your work speaks for itself, don't interrupt.

    81 XS1100 Special - Humpty Dumpty
    80 XS1100 Special - Project Resurrection


    Previously owned
    93 GSX600F
    80 XS1100 Special - Ruby
    81 XS1100 Special
    81 CB750 C
    80 CB750 C
    78 XS750

    Comment


    • #3
      Paranoid Delusions....

      Spider,

      Congrats on not dropping the bike on that unexpected maneuver.

      As far as thinking along the lines of what would break or get out of adjustment if an 1100 CC Dual overhead Cam engine came to an immediate/abrupt HALT, I'm gonna hold off for now. Not because other members with far more experience would chime in with stuff like:

      "That's impossible!"
      "No way that could happen..."
      "You don't know what you're talking about....EEEdiot!!!"

      I would refrain because there's the other stuff to check first like that float level. In a very Sherlock Homes way of saying it, "When you have eliminated the possible then only the impossible remains." What I would offer could be considered very low probability events or even paranoid afterthoughts.

      If you end up checking everything and it all appears ok yet the backfiring symptoms persist in triggering your "Spidey Sense", I'll offer up the stuff that Rod Serling would have approved of.

      Comment

      Working...
      X