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I think I killed Hugo.

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  • #1

    I think I killed Hugo.

    Since Monday, I've been riding him to/from work to see how'd he do.
    Well, today was a bad day.
    I'd been dealing with some lean conditions and thought it might be a fuel level problem and was going to tear into them this weekend.
    Basically, I have no top end acceleration. I could cruise about 75 (5k rpm) but couldn't hardly accelerate much after that.
    Getting up to speed seemed a little slow, but did okay. (not as good as Scarlet, she screams thru the gears)
    Okay, Hugo has the oil cooler and lowers on the fairing.
    Today traffic on the Slab was very slow and I've been dealing with some sticky brakes, so it was hard to keep him going stop and go. I think he over heated a bit. Also I was running low on fuel (trying to see what the mileage would be)
    My theory is he was so hot, the fuel was 'boiling' in the carbs and kinda starving for fuel and it would even keep up at 45. I pulled over and put 1/2 gal in the tank from my can and cycled open the bleeders on the front brakes to see if that would free them up. Got back on and he ran okay for about 20 mins. at 75mph, then started sputtering bogging down again, I slowed and pulled over and stopped. let him idle for a second or two and he went fine til I home about 15mins. later.

    One of the things I'm going to make sure I have the 4H0 TCI, just in case. I'll probably check the vac. advance to make sure it's rotating okay too.
    Definitely pulling the carbs and totally going thru them. (they are the SG carbs and have the pilot crossover)
    I'm also going to rebuild the front master cylinder and clean out the calipers too.

    I think I was averaging about 45mpg
    Last Sunday I had the plugs out and they were ghostly white.

    Looks like I'm back on Scarlet for the commute. (got to order a rear tire for her soon, XS SE is right around the corner....)
    Hi, my name is George & I'm a twisty addict!

    80G (Green paint(PO idea))
    The Green Monster
    K&N A/F, TC's fuse block, '81 oil cooler, TC's homemade 4-2 w/Mac Mufflers, Raptor 660 ACCT
    Got him in '04.
    bald tire & borrowing parts

    80SG (Black w/red emblems & calipers)
    Scarlet
    K&N A/F, TC's fuse block, WJ5, Shoei bags, Raptor 660 ACCT.
    Got her in '11
    Ready for the twisties!

    81H (previously CPMaynard's)
    Hugo
    Full Venturer, Indigo Blue with B/W painted tank.
    Cold weather ride
    Tags: None
  • #2
    Wow!........is all I can say. That would be a close one for a piston/cyl. seizure! BTDT.....with power pulling down, and not from a normal load on it either. Likely didn't notice it, but I bet those header pipes were 'pinging' too under the slightest load. Noticing that would of been the leat if your concerns at that point. Think you may have 'dodged the bullet' this go round. With some minor cyl. 'scuffing' likely won't be as fortunate second time . Hopefully no collapsed piston skirts, but you'll soon know once you get the carbs squared away. Hope it all works out!
    81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

    Comment

    • #3
      Sounds kinda like you may have some leaky diaphragms George and the heat may have added to the issue. When you get those carbs apart check those diaphragms really good, especially out near the edges. That's usually where the holes show up.
      Greg

      Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

      ― Albert Einstein

      80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

      The list changes.

      Comment

      • #4
        Hopefully, Hugo is going to be OK. How white is white? The porcelain is supposed to be white. It's bad it you got flecks of melted aluminum on there. Hopefully, you're good.
        Marty (in Mississippi)
        XS1100SG
        XS650SK
        XS650SH
        XS650G
        XS6502F
        XS650E

        Comment

        • #5
          George,

          You've got to stop trying to see how LEAN you can run! Mileage is one thing, but holing pistons is another...and you've BTDT!!

          I thought you preferred Scarlet/SG for the twisties anyways?? And aren't you trucking/hauling it down there instead of actually RIDING it?? I'm trailering Godzilla as usual, have to visit MOM in Ala., and this time helping her get packed up to MOVE down to just north of Orlando, but I won't be moving her, my cousin is coming up to get her and take her and her stuff down there!

          I haven't heard from John(Oldbiker##) in Richmond...the parts guy, that's why I haven't followed up regarding a parts run up there.

          Okay, hope you get it worked out and don't have any serious piston damage.
          I experienced a slight overheat condition several weeks ago on a weekend trip to my work place, started getting smoke vapors from the leaked oil on the head...but was able to finally get moving and got it cooled down.

          T.C.
          T. C. Gresham
          81SH "Godzilla" . . .1179cc super-rat.
          79SF "The Teacher" . . .basket case!
          History shows again and again,
          How nature points out the folly of men!

          Comment

          • #6
            Originally posted by BA80 View Post
            Sounds kinda like you may have some leaky diaphragms George and the heat may have added to the issue. When you get those carbs apart check those diaphragms really good, especially out near the edges. That's usually where the holes show up.
            Yeah greg , i was also thinking about the diaphragms too. I just forgot to mention that in the post.

            Marty, they weren't porcelain white. More like ashy white/grey.

            TC, i was toying with the idea of riding Hugo to SE, but he needs to much to get him twisty ready. Scarlet hardly needs much.
            Hi, my name is George & I'm a twisty addict!

            80G (Green paint(PO idea))
            The Green Monster
            K&N A/F, TC's fuse block, '81 oil cooler, TC's homemade 4-2 w/Mac Mufflers, Raptor 660 ACCT
            Got him in '04.
            bald tire & borrowing parts

            80SG (Black w/red emblems & calipers)
            Scarlet
            K&N A/F, TC's fuse block, WJ5, Shoei bags, Raptor 660 ACCT.
            Got her in '11
            Ready for the twisties!

            81H (previously CPMaynard's)
            Hugo
            Full Venturer, Indigo Blue with B/W painted tank.
            Cold weather ride

            Comment

            • #7
              Originally posted by TopCatGr58 View Post
              .
              I experienced a slight overheat condition several weeks ago on a weekend trip to my work place, started getting smoke vapors from the leaked oil on the head...but was able to finally get moving and got it cooled down.

              T.C.
              I've been in that position many times on trips. If the cylinders are to hot to touch you gotta get some air flow.

              The shoulder of the highway is king.
              Greg

              Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

              ― Albert Einstein

              80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

              The list changes.

              Comment

              • #8
                Doesn't leaking diaphragms lets the needles drop, blocking the air flow and creates a very rich scenario where your plugs would be very black?

                My thinking was just a plugged tank vent or a kinked line?
                Try your hardest to be the kind of person your dog thinks you are.

                You can live to be 100, as long as you give up everything that would make you want to live to be 100!

                Current bikes:
                '06 Suzuki DR650
                *'82 XJ1100 with the 1179 kit. "Mad Maxim"
                '82 XJ1100 Completely stock fixer-upper
                '82 XJ1100 Bagger fixer-upper
                '82 XJ1100 Motor/frame and lots of boxes of parts
                '82 XJ1100 Parts bike
                '81 XS1100 Special
                '81 YZ250
                '80 XS850 Special
                '80 XR100
                *Crashed/Totalled, still own

                Comment

                • #9
                  Originally posted by GLoweVA View Post
                  Marty, they weren't porcelain white. More like ashy white/grey.
                  I don't think you killed him. I had mine so lean, the electrodes were white.
                  Marty (in Mississippi)
                  XS1100SG
                  XS650SK
                  XS650SH
                  XS650G
                  XS6502F
                  XS650E

                  Comment

                  • #10
                    Originally posted by trbig View Post
                    Doesn't leaking diaphragms lets the needles drop, blocking the air flow and creates a very rich scenario where your plugs would be very black?

                    My thinking was just a plugged tank vent or a kinked line?
                    Good point trbig......specially for those following the back and forth bantor on the carb thread.
                    Last edited by motoman; 08-29-2014, 07:26 AM.
                    81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

                    Comment

                    • #11
                      Originally posted by trbig View Post
                      Doesn't leaking diaphragms lets the needles drop, blocking the air flow and creates a very rich scenario where your plugs would be very black?

                      My thinking was just a plugged tank vent or a kinked line?
                      It would drop the air flow to an extent but the jet needles wouldn't be raising fully out (not all the way but to max flow) of the needle jets allowing full fuel flow.

                      Could be a fuel tank cap vent plugging up too.
                      Greg

                      Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

                      ― Albert Einstein

                      80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

                      The list changes.

                      Comment

                      • #12
                        No kinks in the lines and i had opened the cap, so not the vent. I also put them on prime too and that didn't help either.
                        I'll update this thread this weekend as i tear into it.
                        Thanks for all the input.

                        Oh and thanks for the "different" views on the anatomy of the carbs thread.
                        Hi, my name is George & I'm a twisty addict!

                        80G (Green paint(PO idea))
                        The Green Monster
                        K&N A/F, TC's fuse block, '81 oil cooler, TC's homemade 4-2 w/Mac Mufflers, Raptor 660 ACCT
                        Got him in '04.
                        bald tire & borrowing parts

                        80SG (Black w/red emblems & calipers)
                        Scarlet
                        K&N A/F, TC's fuse block, WJ5, Shoei bags, Raptor 660 ACCT.
                        Got her in '11
                        Ready for the twisties!

                        81H (previously CPMaynard's)
                        Hugo
                        Full Venturer, Indigo Blue with B/W painted tank.
                        Cold weather ride

                        Comment

                        • #13
                          Originally posted by GLoweVA View Post
                          No kinks in the lines and i had opened the cap, so not the vent. I also put them on prime too and that didn't help either.
                          I'll update this thread this weekend as i tear into it.
                          Thanks for all the input.

                          Oh and thanks for the "different" views on the anatomy of the carbs thread.
                          Oh.......then your gonna really like it when I get back to Bizarro land from GA. ......stay tuned .
                          81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

                          Comment

                          • #14
                            Originally posted by motoman View Post
                            Oh.......then your gonna really like it when I get back to Bizarro land from GA. ......stay tuned .
                            Must be an electrical problem.

                            Or, running lean because the float levels are too high. Air too explosive?
                            Last edited by BA80; 08-29-2014, 06:39 PM.
                            Greg

                            Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

                            ― Albert Einstein

                            80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

                            The list changes.

                            Comment

                            • #15
                              count me out

                              I;m staying out of this one!!!!!
                              78standard,79 & 80 Specials; 2 x 650 Maxims; 4 x RD350's; yz450; 2 x Honda tlr's;2x jt1 mini.

                              Comment

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