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    Bump start questions

    Hey everyone,
    I have the unfortunate experience of riding my bike to work and when I went to start it up again, mere minutes after my ride ended, it gave quite a sluggish start. Charging system issue or bad battery/cell I'm sure.
    However! I still need to ride it back home, I know i can bumpstart it but I have never done that before.

    I know I need to be in second gear, bike on.
    Hold the clutch with my thumb over the starter switch.
    get up to 5-10 MPH (Thankfully, I'm on the top level of a sloped parking garage so that shouldn't be a problem)
    Once it gets up to speed I know that I am supposed to let go of the clutch, and press the starter.
    it should theoretically start after that.

    Is there anything I am missing? or are there any tips or pointers anyone can give me?
    I'm not looking forward to having to push it home... or to the mechanic down the street.

    #2
    Have someone just use cables and jump you off. Be sure the car is NOT running at the time. Jump it and go. If the systemm is in fact charging and the battery is the problem, it will stay running off the stator.
    MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
    1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

    NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


    I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

    Comment


      #3
      Don't use the starter. Just the clutch. Make sure the ignition and kill switch are in the right positions first. Set the choke as you normally would. If you bounce on the seat as you cop the clutch it will be less likely to skid. Once it starts pull the clutch in, stop the bike to save the rest of the hill should you need it, and try to keep it running. If the battery and charging system is dead enough it won't make it home. The ignition system takes some power to make the spark plug spark. How far away do you live?

      If you can't fix the charging issue for a day or two, bring a battery charger to work with you, take the battery into the office and charge it up while you work.

      Do you know about the quick test to check out the charging system?

      Yeah, what Chuck said, a jump start is better as long as you leave the car turned off.
      http://img.photobucket.com/albums/v5...tatesMap-1.jpg

      Life is too short to ride an L.

      Comment


        #4
        I'm sure the battery is the problem. I've replaced the stator and R/R and all that last season. So I will try jumping it first.

        What is the test to check the charging system? Is that checking the voltage at 4-5000 RPMs?

        Comment


          #5
          Originally posted by tkent02 View Post
          Don't use the starter. Just the clutch. Make sure the ignition and kill switch are in the right positions first. Set the choke as you normally would.
          What he said. Double check key, kill switch and choke positions.
          1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

          2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

          Comment


            #6
            Originally posted by tbonez91 View Post
            I'm sure the battery is the problem. I've replaced the stator and R/R and all that last season. So I will try jumping it first.

            What is the test to check the charging system? Is that checking the voltage at 4-5000 RPMs?

            Most forums have Stickies addressing the common problems or concerns. This one is no exception.

            Right at the top of the electrical section:

            '83 GS650G
            '83 GS550es (didn't like the colours in the 80's, but they've grown on me)

            Comment


              #7
              Years ago my starter failed 2 hours into a weekend trip. There was never a consideration of going home, only consideration of where to park (on a hill /slope).
              Do as they said for starting, then check the electrical system. Also if you have a lead acid battery, be sure to check its level (wearing safety glasses). Unbeknownst to me, overuse of a battery tender cooked the water out of mine a few years ago. I found out when it cranked very slowly. The tender said the battery was good, which I assume was a dry charge.....
              sigpic
              When consulting the magic 8 ball for advice, one must first ask it "will your answers be accurate?"

              Glen
              -85 1150 es - Plus size supermodel.
              -Rusty old scooter.
              Other things I like to photograph.....instagram.com/gs_junkie
              https://www.instagram.com/glen_brenner/
              https://www.flickr.com/photos/152267...7713345317771/

              Comment


                #8
                Since you have the needed information, I have a funny story. This Harley guy I know had his motorcycle parked in front of this BAR/restaurant with his lights on. His Harley was decked out with them little LED lights all over it... Well, him and his wife said good-byes and left. About 15 minutes later I see his wife. "I thought you guys left what's up" "they're in the back lot trying to push start the motorcycle". My first mistake: going out back to see what was going on. Two guys pushing as hard as they could, the one guy was exhausted. My second mistake: "I'll help you guys out". Well, they were pushing, then the rider would dump it into 1st gear. The engine would turn a couple of times and the tire would skid. Me and another fellow were pushing and I said "dump it into 2ed this time" When he did that, that sucker LIT! The bike took off, me and the other guy took three giant steps to try to regain our balance, we did a perfect synchronized summer salt on the asphalt drive! My jeans wore torn, my knee hurt, my elbow was bleeding... Lesson learned; Don't push start a Harley!
                Last edited by storm 64; 07-15-2015, 01:57 PM.
                My Motorcycles:
                22 Kawasaki Z900 RS (Candy Tone Blue)
                22 BMW K1600GT (Probably been to a town near you)
                82 1100e Drag Bike (needs race engine)
                81 1100e Street Bike (with race engine)
                79 1000e (all original)
                82 850g (all original)
                80 KZ 650F (needs restored)

                Comment


                  #9
                  90% of the electrical gremlins on a Harley is the fact they rattle the battery bolts loose. Quick tightening and it all is resolved.
                  MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                  1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                  NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                  I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                  Comment


                    #10
                    second gear - clutch in - when you pop the clutch lever out and back in - I plop down on the seat to give some traction and prevent the rear tire from skidding.

                    when you get good at it you may be surprised how little / slow you gotta get going to fire it up.
                    SUZUKI , There is no substitute

                    Comment


                      #11
                      Well......did you get it back home? What way did you choose to do??? Some links to diagnose the entire charging system.



                      MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                      1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                      NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                      I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                      Comment


                        #12
                        I prefer my kick starter, it's almost as easy to push through by hand as pushing the starter button....
                        But I'm guessing the PO chose the more advanced and technically sophisticated (cheaper) later model without one.
                        http://img.photobucket.com/albums/v5...tatesMap-1.jpg

                        Life is too short to ride an L.

                        Comment


                          #13
                          I've had to bump start my bike a couple times, I always use 4th or 5th gear, makes it easier I believe.
                          sigpicMrBill Been a GSR member on and off since April 2002
                          1980 GS 750E Bought new in Feb of 1980
                          2015 CAN AM RTS


                          Stuff I've done to my bike:dancing: 1100E front end with new Sonic springs, 1100E swing arm conversion with new Progressive shocks installed, 530 sprockets/chain conversion, new SS brake lines, new brake pads. New SS fasteners through out. Rebuilt carbs, new EBC clutch springs and horn installed. New paint. Motor runs strong.

                          Comment


                            #14
                            i usually use 4th or 5th gear too, depending on how tight the motor is compression-wise.

                            also.... make sure this is not the problem:


                            2002 bmw r1150gs 1978 gs1000E skunk les pew 1979 gs1000L dragbike
                            82 gs1100L probably the next project
                            1980 gs1000G the ugly 1978 gs750E need any parts?
                            https://m.youtube.com/watch?v=m_m2oYJkx1A
                            1978 gs1000E skunk #2 RLAP
                            https://live.staticflickr.com/65535/...2f1debec_t.jpg

                            Comment


                              #15
                              So I did get it home. I found out that the battery was totally shot, damn thing didn't hold a charge worth squat.
                              I was amazed when it actually started up no problem there in the garage when I left work.

                              I did actually get to bumpstart it the day after when I thought "oh hey ill try it" it started right up, bumping it was was alot easier and more fun than I thought it would be.

                              Got the new battery the other day and when I went to start it, with the new one, just the sounds pitch of starting it up with the higher amps being pulled through was amazing.

                              Thanks for your help everyone who contributed.

                              Comment

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