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Bike goes off after long idle exposure to sunlight (Heat)

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  • #16
    Originally posted by neal_wreakz86 View Post
    you guys might have noticed a small hole once you open the fuel lid, its known as a drain hole for draining water during heavy rains to prevent water seepage to fuel tank
    Originally posted by Mecho View Post
    I tried it every day for the last 2 weeks.... But I idnt fint the hole for water seepage!!! Is it in the fuel cap?
    Whoa!!! Are you sure? IMO, this is breather hole for the air to seep in & not for water to seep out!!!

    Originally posted by Mecho View Post
    Once I open the fuel lid before starting, the bike doesnt go off. So pressure variation is the problem...!!!!
    Can you elaborate on this one pls? Are you saying that you're unable to start if you open up the lid before starting the vehicle?
    Last edited by aargee; 01-19-2011, 09:14 AM.
    Skill is what keeps you on a Motorcycle
    Awareness + Skill is what keeps you out of harm's way
    ATGATT + Awareness + Skill means you might Live To Ride another day

    Comment

    • #17
      Originally posted by aargee View Post
      Whoa!!! Are you sure? IMO, this is breather hole for the air to seep in & not for water to seep out!!!
      Ya. there's a breather hole in the lid..but the water drainer should be under the tank.. Thats what I dont find.. The only attachment is the sensor for fuel level!!

      Originally posted by aargee View Post

      Can you elaborate on this one pls? Are you saying that you're unable to start if you open up the lid before starting the vehicle?
      Ya. Once I open the fuelcap a minute berofe starting, the problem gets solved. There must be a block in the fuel cap hole compromising in pressure adjustment. I will check it today..

      thanks dude

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      • #18
        Originally posted by Mecho View Post
        Ya. Once I open the fuelcap a minute berofe starting, the problem gets solved. There must be a block in the fuel cap hole compromising in pressure adjustment. I will check it today..
        What I assume is, the breather hole should be covered up (dirt/dust probably) & when the fuel tank is exposed to hot sun, the fuel evaporates & some amount of pressure is formed within the tank. So once you open up, this evaporated fuel escapes adjusting to the regular atmospheric pressure. Just a wild guess!!!
        Skill is what keeps you on a Motorcycle
        Awareness + Skill is what keeps you out of harm's way
        ATGATT + Awareness + Skill means you might Live To Ride another day

        Comment

        • #19
          Originally posted by aargee View Post
          Whoa!!! Are you sure? IMO, this is breather hole for the air to seep in & not for water to seep out!!!
          neal_wreakz86 was talking about the hole that U find once you open the lid.. There's a hole, and that is to drain water..

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          • #20
            Originally posted by aargee View Post
            What I assume is, the breather hole should be covered up (dirt/dust probably) & when the fuel tank is exposed to hot sun, the fuel evaporates & some amount of pressure is formed within the tank. So once you open up, this evaporated fuel escapes adjusting to the regular atmospheric pressure. Just a wild guess!!!
            yes! if the breather hole is blocked, must open the fuelcap to adjust the pressure

            Comment

            • #21
              Originally posted by manojkrishnaks View Post
              just open the fuel cap for few seconds..bike will start normally..i did tht many times..
              Originally posted by Mecho View Post
              Hello experts,

              Mine is Pulsar 150 DTSi UG2. I park my bike office parking area and I cover it to prevent paint fading. when I take my bike in the afternoon it goes off after 150 - 200 meters run as if there's no fuel. I have to pull the choke and kick 10-15 times to start it after that. Once it starts, there's no problem.
              This problem doesn't shows when I start my bike in the morning ( My be because there's no sunlight heat during the night).

              Also there's no problem if I park my bike in a shed during the day time.
              please advice a remedy. Is it because of fuel vapourization from carb. due to sunlight heat?
              please help.
              nothing to be worried about. Just open tank lid. wait for 5 second and start your bike. I think sunlight or heat create some vacuum so the fuel not able to pass.

              Comment

              • #22
                Originally posted by nitro66 View Post
                nothing to be worried about. Just open tank lid. wait for 5 second and start your bike. I think sunlight or heat create some vacuum so the fuel not able to pass.
                Thanks dude. but I was looking forward to find out the root cause of the problem, and I think I found it out.. It was a block in the pressure regulating hole in the tank cap.

                Thanks all experts who took this thread seriously and put in their valuable suggestions...

                Moderators, thanks for approving this, my problem seems solved.
                If this thread needs to be closed. then please..

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                • #23
                  i had the same problem with my avenger 200. what i used to do was to tilt the bike, like what we used to do with old scooters and then start with choke on.. this has worked for me.. next time may be i can try opening the lid..

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                  • #24
                    Originally posted by Mecho View Post
                    Hello experts,

                    Mine is Pulsar 150 DTSi UG2. I park my bike office parking area and I cover it to prevent paint fading. when I take my bike in the afternoon it goes off after 150 - 200 meters run as if there's no fuel. I have to pull the choke and kick 10-15 times to start it after that. Once it starts, there's no problem.
                    This problem doesn't shows when I start my bike in the morning ( My be because there's no sunlight heat during the night).

                    Also there's no problem if I park my bike in a shed during the day time.
                    please advice a remedy. Is it because of fuel vapourization from carb. due to sunlight heat?
                    please help.
                    Overhaul & clean carburettor, has to be done by the best mechanic !!

                    Comment

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