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  • now im really confused?

    Ok as said befor I'm new to everything new rider new owner ect ect but what in the world would cause oil in my airbox? Any ideas?

  • #2
    The air box has a crankcase vent, blow by from the rings will leave a small amount of oil which is normal. A large amount could be from an overfilled crankcase, check your oil level in the sight glass with the bike on the centerstand, not the side stand. It should be in the middle between the two lines.
    2H7 (79)
    3H3

    "If it ain't broke, modify it"

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    • #3
      Ok the oil was a little full thank you I siphoned some out is there a chance of any damage from that?

      Comment


      • #4
        Not unless it is contaminated with gasoline from the carbs flooding at one point. If the oil is thin and smells like gas, change it and the filter.
        2H7 (79)
        3H3

        "If it ain't broke, modify it"

        Comment


        • #5
          It does ok so change filters and oil after that it should be good?

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          • #6
            If it's thin and smells like gas, if your lucky you might be OK, but it's also possible that the bearings are damaged. One of the more common reasons for engine failure is oil thinned by gas. It's one of the reasons that you need to keep a close eye on the oil level cause if it goes up that means BIG trouble.
            Cy

            1980 XS1100G (Brutus) w/81H Engine
            Duplicolor Mirage Paint Job (Purple/Green)
            Vetter Windjammer IV
            Vetter hard bags & Trunk
            OEM Luggage Rack
            Jardine Spaghetti 4-2 exhaust system
            Spade Fuse Box
            Turn Signal Auto Cancel Mod
            750 FD Mod
            TC Spin on Oil Filter Adapter (temp removed)
            XJ1100 Front Footpegs
            XJ1100 Shocks

            I was always taught to respect my elders, but it keeps getting harder to find one.

            Comment


            • #7
              Oil channge

              The bike is "new to you" so, I would change the oil just to be sure, then get a good level referance ( I like to hold the bike at exact dead center by the handlebars, center stand up and side stand off the ground, that way you know it isen't leaning at all Then check before you go riding each time, if the oil level goes up at all, start checking as to how / why gas is getting in the crankcase and fix before you ride to save the main and rod bearings

              Originally posted by Jelmo11 View Post
              Ok the oil was a little full thank you I siphoned some out is there a chance of any damage from that?
              1979 XS1100 Special (Mad Max, OEM) Current
              1980 XS1100 Special
              1990 V Max
              1982 KZ750 LTD Twin
              1986 700 FZR Yamaha Fazer (faster then expected)
              1979 XS750 Special (my 1st Special)
              1974 CB750-Four



              Past/pres Car's
              1961 Catalina 389/1970 Torino GT 351/1967GTO 12to1 comp./ Roller cam/ T-10/ 456 gear/Tri-power/1967 GTO 400, 1969 Camaro, 1968 Z28, 2001 BMW M Roadster 0 to 60 in 4.5 sec. Jaguar XK8

              Comment


              • #8
                Ok anyone know where I can order the original air filter and oil filter from........ so change oil change filters watch level if it goes up PANIC lol.

                Comment


                • #9
                  If the oil level goes up it means your carbs are overflowing into the cylinders. If so you need to pull them and clean them and fix the problem with them that is causing the leak. But change the oil and filter first, cause it could be a problem that's not happening any more.

                  As for where you can get the air filter, they are a bit hard to find, make sure you really need one first. For the oil filter, you can get them at the Yamaha dealer, or Napa auto parts, or CycleGear. Those are the one that I KNOW carry them, there may be others.
                  Cy

                  1980 XS1100G (Brutus) w/81H Engine
                  Duplicolor Mirage Paint Job (Purple/Green)
                  Vetter Windjammer IV
                  Vetter hard bags & Trunk
                  OEM Luggage Rack
                  Jardine Spaghetti 4-2 exhaust system
                  Spade Fuse Box
                  Turn Signal Auto Cancel Mod
                  750 FD Mod
                  TC Spin on Oil Filter Adapter (temp removed)
                  XJ1100 Front Footpegs
                  XJ1100 Shocks

                  I was always taught to respect my elders, but it keeps getting harder to find one.

                  Comment


                  • #10
                    Ok really napa has them that's cool what am I lookin at spending on one and part number?

                    Comment


                    • #11
                      Advanced Auto

                      I get mine at Advanced Auto, but most chains can get them in, airfilter can be hard to find at some, Ebay has them most of the time. This oil filter (fram CH6002) fits most XS's (see attached chart) and is $4.99 with both "O" rings at Advanced Auto)
                      http://www.ebay.com/itm/XS750-XS850-...sories&vxp=mtr
                      Originally posted by Jelmo11 View Post
                      Ok anyone know where I can order the original air filter and oil filter from........ so change oil change filters watch level if it goes up PANIC lol.
                      1979 XS1100 Special (Mad Max, OEM) Current
                      1980 XS1100 Special
                      1990 V Max
                      1982 KZ750 LTD Twin
                      1986 700 FZR Yamaha Fazer (faster then expected)
                      1979 XS750 Special (my 1st Special)
                      1974 CB750-Four



                      Past/pres Car's
                      1961 Catalina 389/1970 Torino GT 351/1967GTO 12to1 comp./ Roller cam/ T-10/ 456 gear/Tri-power/1967 GTO 400, 1969 Camaro, 1968 Z28, 2001 BMW M Roadster 0 to 60 in 4.5 sec. Jaguar XK8

                      Comment


                      • #12
                        The last time I bought a couple, they were about $6 each. Most places will have to order them, but it is still available. You can also get the filter anyplace that sells Wix filters (which is who makes the NAPA ones), that number is 24933.

                        Fram also make one, but their's don't come with new o-rings and are more than a bit cheesy....
                        Fast, Cheap, Reliable... Pick any two

                        '78E original owner - resto project
                        '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
                        '82 XJ rebuild project
                        '80SG restified, red SOLD
                        '79F parts...
                        '81H more parts...

                        Other current bikes:
                        '93 XL1200 Anniversary Sportster 85RWHP
                        '86 XL883/1200 Chopper
                        '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
                        Cage: '13 Mustang GT/CS with a few 'custom' touches
                        Yep, can't leave nuthin' alone...

                        Comment


                        • #13
                          OIL filter part numbers, thanks greg.

                          Autozone SP2

                          Napa 4933

                          STP SMO-2

                          Wix 24933

                          Fram CH6002
                          Nathan
                          KD9ARL

                          μολὼν λαβέ

                          1978 XS1100E
                          K&N Filter
                          #45 pilot Jet, #137.5 Main Jet
                          OEM Exhaust
                          ATK Fork Brace
                          LED Dash lights
                          Ammeter, Oil Pressure, Oil Temp, and Volt Meters

                          Green Monster Coils
                          SS Brake Lines
                          Vision 550 Auto Tensioner

                          In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                          Theodore Roosevelt

                          Comment


                          • #14
                            Originally posted by crazy steve View Post
                            The last time I bought a couple, they were about $6 each. Most places will have to order them, but it is still available. You can also get the filter anyplace that sells Wix filters (which is who makes the NAPA ones), that number is 24933.

                            Fram also make one, but their's don't come with new o-rings and are more than a bit cheesy....
                            Last couple of fram's I got came with both o-rings, but around here at least all the stores claim the fram has discontinued that filter. However all the others AFAIK are still in production since several other fairly popular bikes use the same filter.
                            Cy

                            1980 XS1100G (Brutus) w/81H Engine
                            Duplicolor Mirage Paint Job (Purple/Green)
                            Vetter Windjammer IV
                            Vetter hard bags & Trunk
                            OEM Luggage Rack
                            Jardine Spaghetti 4-2 exhaust system
                            Spade Fuse Box
                            Turn Signal Auto Cancel Mod
                            750 FD Mod
                            TC Spin on Oil Filter Adapter (temp removed)
                            XJ1100 Front Footpegs
                            XJ1100 Shocks

                            I was always taught to respect my elders, but it keeps getting harder to find one.

                            Comment


                            • #15
                              Fram

                              Around here (Florida) I have to order them at the store if I want to pick up at the store and avoid S/H on Advanced Auto's web site. It takes one or two days to get it, so no big deal for me, I am cheap I like the two new "O" rings and the $4.99 price, like I said, I am cheap
                              1979 XS1100 Special (Mad Max, OEM) Current
                              1980 XS1100 Special
                              1990 V Max
                              1982 KZ750 LTD Twin
                              1986 700 FZR Yamaha Fazer (faster then expected)
                              1979 XS750 Special (my 1st Special)
                              1974 CB750-Four



                              Past/pres Car's
                              1961 Catalina 389/1970 Torino GT 351/1967GTO 12to1 comp./ Roller cam/ T-10/ 456 gear/Tri-power/1967 GTO 400, 1969 Camaro, 1968 Z28, 2001 BMW M Roadster 0 to 60 in 4.5 sec. Jaguar XK8

                              Comment

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