Announcement

Collapse
No announcement yet.

MPG and modifications poll

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

  • #91
    '78 "E" Stock Jets, air filter, aftermarket mufflers XS750 mod. Vetter fairing and leather saddlebags. I average 42 -44 MPG
    and I am happy!

    Deny
    1978 XS1100E - The TimeMachine
    1980 XS850 Special - Little Mo

    Comment


    • #92
      Originally posted by dbeardslee View Post
      Riding style definitely makes the difference. I gassed up yesterday after flogging the old girl as usual (it's not abuse if she likes it ), and mileage was a shade over 30. Went for a long relaxed cruise in the country today with the SWOXS crew, and at our midway gas stop I checked it again - over 40 mpg!!! I've been grinnin' ever since.
      Just saw this :-) You were drafting me weren't ya Nice smooth throttle action with easy and steady speeds helps.I wonder if a full fairing helps mpg vs a body cutting the wind.I am usually in the 39-40mpg
      '80 XS1100 SG
      Don't let the good times pass you by..grab all you can
      https://www.youtube.com/watch?v=x_Z4cjUlIo4

      Comment


      • #93
        Originally posted by STEPPENWOLF View Post
        Just saw this :-) You were drafting me weren't ya Nice smooth throttle action with easy and steady speeds helps.I wonder if a full fairing helps mpg vs a body cutting the wind.I am usually in the 39-40mpg
        I was drafting you 'till you started hammerin' it in the twisties . Course now that I know it will get over 40 mpg I'm not as worried about it. I kept wondering why my mileage was always around 32. Should have known it's all in the wrist .
        I think I have a loose screw behind the handlebars.

        '79 XS11 Standard, Jardine 4/1, Dyna DC1-1 Coils, 145 mains, 45 pilots, plastic floats - 25.7mm, XV920 fuel valves, inline fuel filters, speed bleeders, Mikes XS pods, spade-type fuse block, fork brace, progressive fork springs/shocks, manual petcocks, 750 FD, Venture cam chain tensioner, SS brake lines

        Comment


        • #94
          Originally posted by dbeardslee View Post
          I was drafting you 'till you started hammerin' it in the twisties . Course now that I know it will get over 40 mpg I'm not as worried about it. I kept wondering why my mileage was always around 32. Should have known it's all in the wrist .
          Didn't hammer THAT much,fairing and saddle bags were pretty full with train stuff:-)that takes a bit of the handeling away plus buckhorn bars and a card carrying member of the AARP....felt like I was riding a Buick.But good easy wrist action,I never went above 4500 rpm and easy on the rpm's will get that mpg up.
          '80 XS1100 SG
          Don't let the good times pass you by..grab all you can
          https://www.youtube.com/watch?v=x_Z4cjUlIo4

          Comment


          • #95
            new mods

            I just installed the 750 fd on my bike and I also have 85 fj1100 carbs w/ 120m and42.5pilots I need to figure out max range in normal conditions , I guess ill fill her up and a gas can and see how far I get (gauge not workin)
            91 kwaka kz1000p
            Stock


            ( Insert clever quote here )

            Comment


            • #96
              Originally posted by garthxs View Post
              I just installed the 750 fd on my bike and I also have 85 fj1100 carbs w/ 120m and42.5pilots I need to figure out max range in normal conditions , I guess ill fill her up and a gas can and see how far I get (gauge not workin)
              With my style of riding I wouldn't mind having the taller gearing,the engine has plenty of torque and I don't care if a 650 can beat me a 1/4 mile..lets us know how you like the 750 rear end.
              '80 XS1100 SG
              Don't let the good times pass you by..grab all you can
              https://www.youtube.com/watch?v=x_Z4cjUlIo4

              Comment


              • #97
                HI guys Could we get some riding speeds to go along with the mpg? I am really curious as to what everyone else is getting. I get about 30-35mpg and i go about 70-75. Thanks
                1978 XS1100E Standard
                Kerker Exhaust
                Tkat Fork Brace

                On Hold
                TopCat S.O.F.A. + Fuse Block
                Mike's XS Pod FIlters

                Comment


                • #98
                  On the superslabs I average 70. That seems to be the bikes sweet spot. In town, it is what it is. Since the 750 final drive swap I average 40-45 mpg with a good mix of both driving styles.

                  In a group ride with hills and twisties where we would average 40-50 mph, if I avoid using 5th gear I get better mileage. The engine seems to like to be run somewhere between 4500-5000 RPM.

                  Comment


                  • #99
                    Originally posted by STEPPENWOLF View Post
                    With my style of riding I wouldn't mind having the taller gearing,the engine has plenty of torque and I don't care if a 650 can beat me a 1/4 mile..lets us know how you like the 750 rear end.
                    The 750 mod is great it changes the bikes attitude from a roaring lion into a smooth purring cat , you feel you can ride all day at 70-80 mph I still don't really know how the mileage is but I got about 38 under street and heavy throttle
                    91 kwaka kz1000p
                    Stock


                    ( Insert clever quote here )

                    Comment


                    • Crappy mileage and black plugs

                      So I got my dad's 79' 1100 XS with 8500 miles. He has had it for 29 of those 30 years and hardly rode it. I had it worked-over last summer and it cost me $1400 to tune the thing up and replace the pickup coil with a used one. It runs and it throttles awesome while under no load , but as soon as I get it in gear and try to get going, it feels like it is struggling and jerking, but once I'm rolling it's fine. Then 4000RMPs happen and it starts jerking again and I can't get the motor any faster. When I shift up, it moves me along fine, under 4000RPM's but I can't seem to get it above that. I also only get between 55-89 miles out of a tank of Chevron Super. The exhaust pops like a popcorn popper when I down-shift and the plugs are black and sooty, especially the far left one. I am not a mechanic and feel like my "Yamaha recommended" mechanic didn't do anything to improve the bike. It's gorgeous and in fantastic cosmetic condition. I remember riding on it 25 years ago on cmapong trips with dad. I just want it to work to its popential. HELP! What does it sound like the problem is? Anyone?

                      Comment


                      • Switch over to the lowest grade gas they have at chevron. Our bikes were not meant for the super stuff(harder to burn). Run half a can of seafoam into a full tank and ride out that tank. That will help clean out some gunk. You might have to rejet your carbs, maybe too rich? The spark plugs are not burning cleanly from the use of higher octane gas?That's all i can think off atm. hope it helps.
                        Last edited by Korr; 05-31-2009, 01:38 PM.
                        1978 XS1100E Standard
                        Kerker Exhaust
                        Tkat Fork Brace

                        On Hold
                        TopCat S.O.F.A. + Fuse Block
                        Mike's XS Pod FIlters

                        Comment


                        • Carbs are not cleaned out. Follow the directions on here and do it yourself if you want it done right.
                          http://farm2.static.flickr.com/1241/1480921818_241eade448_s.jpg

                          Comment


                          • Right in the middle...

                            Stock '82 XJ1100, runs great... Full vetter, hardbags, and trunk. Regardless of riding style, gets 30mpg. Getting ready to take her on a long trip from OK to Colorado next week... we'll see. I'd love to improve from 30, but not complaining.
                            '82 XJ1100J Maxim (has been sold.)

                            '79 F "Time Machine"... oh yeah, Baby.... (Sold back to Maximan)

                            2011 Kaw Concours 14 ABS

                            In the warden's words from Cool Hand Luke;
                            "What we have here is a failure to communicate."

                            Comment


                            • 80 SG, full dresser. Riding hard in the Coast Range, forest roads, river roads, etc., sea level to 3000 ft. Lots of 2nd & 3rd gear time, 4-5K rpm, today. Stock XJ carbs on it, not in the best of shape, 850 FD swap. Got 40.1 mpg on 3 fillups. Not much wind. Pretty happy with 40. Stock FD would maybe get 36 or 7 if I took it real easy. I use Sea Foam every fill, but I'm going to try some gasetone and see what happens.
                              1980 XS 11 Special: The King of Kong, 9th wonder of the world. Pacifico fairing, chopped shield, Yamaha hard bags, Diamond seat, T-Kat fork brace, XJ top end, YICS Eliminator, '80 carbs from Spyder Cycle Works, K&N Air filter, Fuse block, stainless steel valves & reg/rect from Oregon MC Parts. Raptor CCT, XJ air shocks, 850 FD, Sportster mufflers, Standard handle bar, Tusk Bar Risers, SS braided brake lines. Cat Eye speedometer. HID projector beam headlight, LED running lights.

                              Comment


                              • mileage

                                I'm glad to see most people are getting better MPG's with the 750 FD Mod. I wish I had started the acetone treatment before I swapped over to chaindrive from the 750 FD mod to see the difference. As of now, if I just use 87 octane (100% Petrol), my bike runs fine and the plugs are black when I pull them. However, If I run 50ml acetone/full tank, I get better MPG's and I pull the plugs and they are more Tan. My final drive ratio is close to stock and I get 36 MPG's. I am hoping to improve to 40 when I install the 14 tooth back on next week. As of now, I can be cruising along a side street at 4K in 2nd gear, gun it and spin the rear tire. I've tried it when using just straight Petrol and can't do it to the 200 rear tire. Happy XSiveness.....
                                MDRNF
                                79F.....Not Stock
                                80G......Not Stock Either....In the works

                                Comment

                                Working...
                                X