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  • ys 50 st starting problems

    Hi I have a ys 50 st which takes ages to start. Once started it runs fine. It just takes about 5 mins. Please help.
    Os 8 plug
    Optifuel 12%
    Mp5

    Thanks

  • #2
    1st is it pressurizing up the tank ?
    2nd have you looked at the carp seals ?
    Oxy4+, tgy servos, hw60a, spirit fbl on 6s 🤓


    sigpic - Team pilot

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    • #3
      Check plug aswell or change for sake of it.
      Santander Factory Team

      Proud wearer of 5 x EGS

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      • #4
        Hi pressure is good. I fitted new plug. Not checked seals. Its just weird how long I have to turn the motor over before it starts. The fuel is at the carb after a couple of turns. ...

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        • #5
          is your starter up to the job?
          Avant mostro 700E
          Avant mostro 700 Nitro



          member of :
          South cheshire heliaddicts

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          • #6
            Hi yes its the align one and starts my ys 91 with ease

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            • #7
              How old is the motor?
              I had the same problem when I owned one - ended up changing the piston,ring and liner.
              Minicopter Diabolo - V Bar v5.3, Kontronik Kosmik 200 and Pyro 750-56 .
              JR Vibe SG E12 Hiroki Ito Edition,Scorpion Tribunus 200A ,4525 Ultimate Motor,Spirit Pro,Full Telemetry,Jeti Rx,JR SL series servos.
              RJX Vector 3D Speed - V Bar v5.3 Pyro750-56 Comp Kontronik Kosmik 200
              T Rex 700N DFC, OS 105HZR, JR HV servo's, Spirit FBL system.
              Miniature Aircraft Furion 6 CGY750 KDE 600XF G3
              T Rex 600N DFC V bar v5.3 & YS60SR
              DJI F550 multicopter coming soon.
              Blade mCPX - now Version 2

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              • #8
                Its about 18 months old. Had about 4 gallon though it.

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                • #9
                  Any lean runs that you're aware of?
                  Minicopter Diabolo - V Bar v5.3, Kontronik Kosmik 200 and Pyro 750-56 .
                  JR Vibe SG E12 Hiroki Ito Edition,Scorpion Tribunus 200A ,4525 Ultimate Motor,Spirit Pro,Full Telemetry,Jeti Rx,JR SL series servos.
                  RJX Vector 3D Speed - V Bar v5.3 Pyro750-56 Comp Kontronik Kosmik 200
                  T Rex 700N DFC, OS 105HZR, JR HV servo's, Spirit FBL system.
                  Miniature Aircraft Furion 6 CGY750 KDE 600XF G3
                  T Rex 600N DFC V bar v5.3 & YS60SR
                  DJI F550 multicopter coming soon.
                  Blade mCPX - now Version 2

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                  • #10
                    No lean runs. Its almost like the regulator is not letting the fuel through. Not really sure how the regulator works

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                    • #11
                      My 56 would be a bugger to start first thing.
                      Replaced the diaphragm and it was a lot better.

                      Sent from my A210 using Tapatalk 4
                      Oxy4+, tgy servos, hw60a, spirit fbl on 6s 🤓


                      sigpic - Team pilot

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                      • #12
                        Sounds like diaphragm sticking try give the exhaust deflector a quick squeeze while cranking. Should fire straight up ;-)

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