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  1. #1

    Question Hard Warm Starts on 1997 SLT 780 (blue Fuji engine)

    Hi everyone, I've got a 97 SLT 780. (Blue Fuji) Newly rebuilt carbs. Good compression 134,139,137 (M,C,P) and new fuel diaphragm. Good throttle response in the water and will top out at 54mph (GPS)

    Starts well cold. Restarts well after 15 - 30 seconds after warm stop. Any longer than that and, it'll take 7-10 seconds of cranking to fire up.

    I know, I know,.. probably the first thing anyone will suggest is "check the lines"...been there, done that.. All nice and tight.

    I was wondering if the reed valves might be an issue but the easy cold starts would seem counter intuitive to that diagnosis, ..right?


    Any suggestions would be appreciated
    Bobby
    Last edited by K447; 10-22-2013 at 09:33 AM.


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    It might be an ignition problem.

    See my signature links for the Service Bulletin PWC-00-05. This is a change of the CDI Red/Purple wire.

    Unplug the Red/Purple wire that goes directly into the CDI module.
    Make a jumper wire to go between the CDI bullet connector and a female spade connector.
    Connect the jumper wire to the Orange terminal group and to the CDI Red/Purple wire.
    Leave the other Red/Purple bullet connector unconnected.

    Update: This does not apply to the blue Fuji engines.
    Last edited by K447; 10-22-2013 at 09:34 AM.

  3. #3
    BlueFishCrisis's Avatar
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    Quote Originally Posted by K447 View Post
    It might be an ignition problem.

    See my signature links for the Service Bulletin PWC-00-05. This is a change of the CDI Red/Purple wire.

    Unplug the Red/Purple wire that goes directly into the CDI module.
    Make a jumper wire to go between the CDI bullet connector and a female spade connector.
    Connect the jumper wire to the Orange terminal group and to the CDI Red/Purple wire.
    Leave the other Red/Purple bullet connector unconnected.
    The domestic 97 SLT would be a 700. Based on the original post with 3 compression readings, my guess would be this is a 97 SLT 780 Fuji Motor. Either way, 154 MPH GPS is impressive!!

    Have you checked your venting to ensure the valves are working properly?

  4. #4
    Hmmm... Thanks, I'll give it try


    Quote Originally Posted by K447 View Post
    It might be an ignition problem.

    See my signature links for the Service Bulletin PWC-00-05. This is a change of the CDI Red/Purple wire.

    Unplug the Red/Purple wire that goes directly into the CDI module.
    Make a jumper wire to go between the CDI bullet connector and a female spade connector.
    Connect the jumper wire to the Orange terminal group and to the CDI Red/Purple wire.
    Leave the other Red/Purple bullet connector unconnected.

  5. #5
    Click avatar for tech links/info, donation request K447's Avatar
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    My note only applies to the red domestic engines, not the blue Fuji engines.

    Which engine do you have?
    Quote Originally Posted by polaris780slt View Post
    Hmmm... Thanks, I'll give it try


    Quote Originally Posted by K447 View Post
    It might be an ignition problem.

    See my signature links for the Service Bulletin PWC-00-05. This is a change of the CDI Red/Purple wire.

    Unplug the Red/Purple wire that goes directly into the CDI module.
    Make a jumper wire to go between the CDI bullet connector and a female spade connector.
    Connect the jumper wire to the Orange terminal group and to the CDI Red/Purple wire.
    Leave the other Red/Purple bullet connector unconnected.

  6. #6
    BlueFishCrisis's Avatar
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    Quote Originally Posted by polaris780slt View Post
    Hmmm... Thanks, I'll give it try


    Quote Originally Posted by K447 View Post
    It might be an ignition problem.

    See my signature links for the Service Bulletin PWC-00-05. This is a change of the CDI Red/Purple wire.

    Unplug the Red/Purple wire that goes directly into the CDI module.
    Make a jumper wire to go between the CDI bullet connector and a female spade connector.
    Connect the jumper wire to the Orange terminal group and to the CDI Red/Purple wire.
    Leave the other Red/Purple bullet connector unconnected.
    Confirm if we are talking red domestic or blue Fuji......

  7. #7
    Ha ha ha LOL LOL Sorry, I meant 54 MHP LOL


    Quote Originally Posted by BlueFishCrisis View Post
    Quote Originally Posted by K447 View Post
    It might be an ignition problem.

    See my signature links for the Service Bulletin PWC-00-05. This is a change of the CDI Red/Purple wire.

    Unplug the Red/Purple wire that goes directly into the CDI module.
    Make a jumper wire to go between the CDI bullet connector and a female spade connector.
    Connect the jumper wire to the Orange terminal group and to the CDI Red/Purple wire.
    Leave the other Red/Purple bullet connector unconnected.
    The domestic 97 SLT would be a 700. Based on the original post with 3 compression readings, my guess would be this is a 97 SLT 780 Fuji Motor. Either way, 154 MPH GPS is impressive!!

    Have you checked your venting to ensure the valves are working properly?

  8. #8
    David Drkvampire2001's Avatar
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    Is it red or blue

  9. #9
    Ahhh,, thanks nope.. I've got a Blue Fuji SLT 780. ..(btw I mean to say 54 mph NOT 154 mph LOL )

    Anyway, if that's the case any other suggestions. Could it still be an ignition problem? It's just not adding up. Again, starts well after warm stop. But only if you restart it within 15-30 second of stop.

    Thanks


    Quote Originally Posted by K447 View Post
    My note only applies to the red domestic engines, not the blue Fuji engines.

    Which engine do you have?
    Quote Originally Posted by polaris780slt View Post
    Hmmm... Thanks, I'll give it try


    Quote Originally Posted by K447 View Post
    It might be an ignition problem.

    See my signature links for the Service Bulletin PWC-00-05. This is a change of the CDI Red/Purple wire.

    Unplug the Red/Purple wire that goes directly into the CDI module.
    Make a jumper wire to go between the CDI bullet connector and a female spade connector.
    Connect the jumper wire to the Orange terminal group and to the CDI Red/Purple wire.
    Leave the other Red/Purple bullet connector unconnected.

  10. #10
    97 SLT 780. (Blue Fuji) .. just updated the post to include that info...thanks and sorry about that

    Quote Originally Posted by Drkvampire2001 View Post
    Is it red or blue

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