Announcement

Collapse
No announcement yet.

NEED HELP. Starts (sometimes) but dies when I apply throttle

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

    #16
    Originally posted by Big T View Post
    If the eye is black, the engine case is filled with oil
    The oil filter housing does not drain the oil
    You need to remove the oil drain bolt on the bottom of the engine
    You should drain all of the oil from the engine and refill with the correct amount
    Refilled to the correct amount but still oil fowling the right side. Starts, runs for a few seconds and dies, won't start back up until I wipe off the oil. Why would this happen?

    Comment


      #17
      Valve stem oils seals are bad
      1978 GS 1000 (since new)
      1979 GS 1000 (The Fridge, superbike replica project)
      1978 GS 1000 (parts)
      1981 GS 850 (anyone want a project?)
      1981 GPZ 550 (backroad screamer)
      1970 450 Mk IIID (THUMP!)
      2007 DRz 400S
      1999 ATK 490ES
      1994 DR 350SES

      Comment


        #18
        Originally posted by Big T View Post
        Valve stem oils seals are bad
        Any direction of a thread that may help me fix this. I know nothing about that but am willing to learn!

        Comment


          #19
          Originally posted by Big T View Post
          Valve stem oils seals are bad
          Could failed rings in that cylinder cause the spark plug oil fouling as well? I'm asking 'cause I don't know. Just a thought I had.
          Rich
          1982 GS 750TZ
          2015 Triumph Tiger 1200

          BikeCliff's / Charging System Sorted / Posting Pics
          Destroy-Rebuild 750T/ Destroy-Rebuild part deux

          Comment


            #20
            Failed rings are possible, a compression test should confirm that
            Also, could just be a build up of oil from the overfill
            1978 GS 1000 (since new)
            1979 GS 1000 (The Fridge, superbike replica project)
            1978 GS 1000 (parts)
            1981 GS 850 (anyone want a project?)
            1981 GPZ 550 (backroad screamer)
            1970 450 Mk IIID (THUMP!)
            2007 DRz 400S
            1999 ATK 490ES
            1994 DR 350SES

            Comment


              #21
              Originally posted by Big T View Post
              Failed rings are possible, a compression test should confirm that
              Also, could just be a build up of oil from the overfill
              I don't have a compression tester but once saw that ilit should be enough pressure to blow my finger away if I cover the hole after I remove the spark plugs and both sides certainly do that... If I can get my hands on a tester I'll do that but in the mean time, what can be done about an oil buildup? Or should I plan on taking apart the top of the engine anyways...?

              Comment


                #22
                Originally posted by JonathanPD812 View Post
                I don't have a compression tester but once saw that ilit should be enough pressure to blow my finger away if I cover the hole after I remove the spark plugs and both sides certainly do that... If I can get my hands on a tester I'll do that but in the mean time, what can be done about an oil buildup? Or should I plan on taking apart the top of the engine anyways...?

                Got a compression tester. Will check and respond this afternoon... What should I expect?

                Comment


                  #23
                  Test with motor warmed up, throttle wide open
                  150 lbs
                  1978 GS 1000 (since new)
                  1979 GS 1000 (The Fridge, superbike replica project)
                  1978 GS 1000 (parts)
                  1981 GS 850 (anyone want a project?)
                  1981 GPZ 550 (backroad screamer)
                  1970 450 Mk IIID (THUMP!)
                  2007 DRz 400S
                  1999 ATK 490ES
                  1994 DR 350SES

                  Comment


                    #24
                    Originally posted by Big T View Post
                    Test with motor warmed up, throttle wide open
                    150 lbs
                    I can only check it when it's idolate because of whatever condition I'm having whenever I apply any throttle it chokes and dies

                    Comment


                      #25
                      Originally posted by JonathanPD812 View Post
                      I can only check it when it's idolate because of whatever condition I'm having whenever I apply any throttle it chokes and dies
                      That's fine, not to put words in his mouth, but Big T meant for you to run the engine for a while to get it warm and circulate. Then SHUT THE ENGINE OFF. Then remove your spark plugs and install your Compression Tester Connections in the spark plug hole. Then With the throttle twisted all the way open, do the compression testing.
                      Rich
                      1982 GS 750TZ
                      2015 Triumph Tiger 1200

                      BikeCliff's / Charging System Sorted / Posting Pics
                      Destroy-Rebuild 750T/ Destroy-Rebuild part deux

                      Comment


                        #26
                        Exactly, thanks Rich
                        1978 GS 1000 (since new)
                        1979 GS 1000 (The Fridge, superbike replica project)
                        1978 GS 1000 (parts)
                        1981 GS 850 (anyone want a project?)
                        1981 GPZ 550 (backroad screamer)
                        1970 450 Mk IIID (THUMP!)
                        2007 DRz 400S
                        1999 ATK 490ES
                        1994 DR 350SES

                        Comment


                          #27
                          Thanks Rich and Big T! Ran my compression test as indicted below, left side gets 170 PSI and the right gets 175 PSI. Still oil fowling the right side after I had the plugs in and let the engine warm up

                          Comment


                            #28
                            So, not the rings
                            Did you clean the airbox and check the air filter after the oiling issue?
                            1978 GS 1000 (since new)
                            1979 GS 1000 (The Fridge, superbike replica project)
                            1978 GS 1000 (parts)
                            1981 GS 850 (anyone want a project?)
                            1981 GPZ 550 (backroad screamer)
                            1970 450 Mk IIID (THUMP!)
                            2007 DRz 400S
                            1999 ATK 490ES
                            1994 DR 350SES

                            Comment


                              #29
                              Big T, if oil on the right cylinder plug isn’t coming from below(rings) then must be coming from above? Does this mean a valve seal change is in order?

                              Jonathan, can you put your bike year and model in a signature? I keep forgetting what bike we’re talking about.
                              Rich
                              1982 GS 750TZ
                              2015 Triumph Tiger 1200

                              BikeCliff's / Charging System Sorted / Posting Pics
                              Destroy-Rebuild 750T/ Destroy-Rebuild part deux

                              Comment


                                #30
                                1978 Suzuki GS400

                                Comment

                                Working...
                                X