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Thread: 1St Gen - That pesky tiny oil leak

  1. #1
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    Default 1St Gen - That pesky tiny oil leak

    On the left side.....either the shift shaft oil seal, the seal around the stator wires or a gasket is leaking on my 89.

    Is this all I need for parts?

    2 gaskets, 1 oil seal and 1 washer for the screw in the intermediate shaft cover...

    Yamaha
    Oil Seal
    93102-12321-00
    Your Price: $4.60


    ++++++++
    Yamaha
    Gasket, Crankcase Cover 2
    3JP-15461-01-00
    Your Price: $3.57


    ++++++++
    Yamaha
    Gasket, Crankcase Cover 1
    3JP-15451-01-00
    Your Price: $10.38


    ++++++
    Yamaha
    Gasket
    90430-06014-00
    Your Price: $2.44


    +++++

    I already have RTV goop and such if needed...

    TIA,
    david
    Last edited by videoarizona; 01-14-2018 at 11:06 PM. Reason: add
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    Default Re: 1St Gen - That pesky tiny oil leak

    If the leak is at the clutch pushrod you will also need the following. If your going to do that though, you might consider changing the whole slave assembly.
    Other than that you should be good.
    24

    Oil Seal
    93109-08061-00

    $4.86


    25
    Guide, Push Rod
    26H-16399-00-00 26H-Y1639-00-00

    $16.79



    26
    O-Ring
    93210-18322-00

    $2.08
    It's nice to be the same
    But
    It's great to be different!

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    Default Re: 1St Gen - That pesky tiny oil leak

    I would start by cleaning it up good and then watching to find where the leak really is before I start replacing stuff. I have never been a fan of throwing money parts and time at something and hope that I hit the problem.

    There are a few writeups on the process for sealing the wire grommet. this is a popular leak point. Just slapping some RTV on the wires will NOT stop the leak.
    Jeff Borowski . . 88 Venture standard
    There are 10 kinds of people that understand binary, those that do, and those that don't.
    Sometimes the thoughts in my head get bored and go for a stroll out through my mouth (or fingers). This is never a good thing.


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    Default Re: 1St Gen - That pesky tiny oil leak

    Quote Originally Posted by Flyinfool View Post
    I would start by cleaning it up good and then watching to find where the leak really is before I start replacing stuff. I have never been a fan of throwing money parts and time at something and hope that I hit the problem.

    There are a few writeups on the process for sealing the wire grommet. this is a popular leak point. Just slapping some RTV on the wires will NOT stop the leak.

    Jeff...you got it.

    I have already cleaned and then put some miles on her looking for leaks. Without taking off the covers I can't tell... And yes...I did read the write up on cleaning the grommet(for lack of a better word) around the stator wires before RTV'ing the area. Guess I need to be more thorough in my first post....sorry about that!
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    Default Re: 1St Gen - That pesky tiny oil leak

    Quote Originally Posted by Marcarl View Post
    If the leak is at the clutch pushrod you will also need the following. If your going to do that though, you might consider changing the whole slave assembly.
    Other than that you should be good.
    24

    Oil Seal
    93109-08061-00

    $4.86


    25
    Guide, Push Rod
    26H-16399-00-00 26H-Y1639-00-00

    $16.79



    26
    O-Ring
    93210-18322-00

    $2.08
    Thanks, Carl. Yes the clutch slave will be replaced. I think it's original and it is probably gunked up pretty bad by this time. Wouldn't hurt to replace any original parts while I'm in there as well. Thanks for the ideas!
    USAF
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    Default Re: 1St Gen - That pesky tiny oil leak

    I agree that your oil leak is probably coming from the wires. A very good cleaning of the wires removing all of the old RTV and oil residue is whats needed. Make sure the wires are dry as a bone before re-applying the RTV. I make sure there is ample RTV between the wires as well as covering them on both sides of the grommet holding them through the case. Let the RTV dry a full 24 hours before use and you should be good to go. Every time I tried to rush this job I had a leak so take your time.

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    Default Re: 1St Gen - That pesky tiny oil leak

    Quote Originally Posted by videoarizona View Post
    Jeff...you got it.

    I have already cleaned and then put some miles on her looking for leaks. Without taking off the covers I can't tell... And yes...I did read the write up on cleaning the grommet(for lack of a better word) around the stator wires before RTV'ing the area. Guess I need to be more thorough in my first post....sorry about that!
    You do know that the list of "While you are in there.........." can go on forever till you have a whole new bike.
    Just ask KIC how that one goes.......
    Last edited by Flyinfool; 01-15-2018 at 11:43 AM.
    Jeff Borowski . . 88 Venture standard
    There are 10 kinds of people that understand binary, those that do, and those that don't.
    Sometimes the thoughts in my head get bored and go for a stroll out through my mouth (or fingers). This is never a good thing.


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    Default Re: 1St Gen - That pesky tiny oil leak

    So oil leak on left side is typical of someone replacing stator? I replaced to gaskets behind the shifter and didn't fix mine.... Then was told and it looked to be leaking from oil pan.... Flyinfool you sure is awnery o by the way woke up to another 3 inches of your white powder and forecast of 4 F tonight.

    Sent from my LG-K371 using Tapatalk

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    Default Re: 1St Gen - That pesky tiny oil leak

    Might also look at the O-ring on the shift indicator ( white triangular piece,with wires going to it). Sometimes they also crack.
    Another question is how much oil are you running? 1/2 way up on the oil indicator window, is sufficient.
    Good luck

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    Default Re: 1St Gen - That pesky tiny oil leak

    Quote Originally Posted by van avery View Post
    Might also look at the O-ring on the shift indicator ( white triangular piece,with wires going to it). Sometimes they also crack.
    Another question is how much oil are you running? 1/2 way up on the oil indicator window, is sufficient.
    Good luck

    Yea...good thought. I had the same problem on my VStar 650. Forgot about that one! Simple O ring and easy to get to...
    I'll add that to the list!

    Oil level halfway up the glass. Learned that lesson 4 years ago just after I got the scoot and read the posts here.

    Thanks.
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    Default Re: 1St Gen - That pesky tiny oil leak

    I was also thinking of taking a good look at the stator while I was in there. Mine might be original. If I can swing the $$, it would be a good idea to replace with new. Then I have a known spare and I should be good to go for some time. At least for the rest of my riding time...another 4 to 5 years maybe.

    Have a friend who has a 1st Gen trike here in Green Valley and we've been talking about doing both scoots together. He's not on the forum but does his own work for the most part.
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    Default Re: 1St Gen - That pesky tiny oil leak

    I would add some dye from a auto store with the ultra violet light and you will see it right where it is coming from.
    I had a leak I could not fined on my 68 Chevelle for a long time and added dye and checked with the light and found it within 5 mins.
    It was the oil sending unit pipe had a crack in it right at the block
    Good luck

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    Default Re: 1St Gen - That pesky tiny oil leak

    I fought A similar tiny il leak all last summer,changed all the gaskets on the left side of the motor installed new shift shaft seal,still had goofy little leak,then decided it had to be coming from higher up,replaced cam cover gasket on the front head,with the bolt seals,wow no more leak,it turns out that it was leaking from the cam cover gasket,running along the head,then down around the alternator cover,along the alternator wires and dripping off the kickstand switch.

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    Default Re: 1St Gen - That pesky tiny oil leak

    Quote Originally Posted by bikenut View Post
    I would add some dye from a auto store with the ultra violet light and you will see it right where it is coming from.
    I had a leak I could not fined on my 68 Chevelle for a long time and added dye and checked with the light and found it within 5 mins.
    It was the oil sending unit pipe had a crack in it right at the block
    Good luck
    Dye works wonderfully. I've used Tracerline TP34000601 dye on a couple of ocassions.

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    Default Re: 1St Gen - That pesky tiny oil leak

    Quote Originally Posted by Flyinfool View Post


    You do know that the list of "While you are in there.........." can go on forever till you have a whole new bike.
    Just ask KIC how that one goes.......
    IT GOES AND GOES AND GOES...

    Mine started to leak so bad it made a Harley look like it was potty trained. I think my main mess of a leak was the Air filter box inlets. The round tops inside the box. They seamed to be leaking down to the left side. I sold it before I could attack it. I am sure I will be dealing with that issue on my daughter's 86. So practice up David .. I need an expert..

    By the way: 7 days and counting until I fly to Oklahoma to pick up my Stratoliner....
    I know the voices aren't real... But they do have some really great ideas !

    The problem isn't the problem. The problem is your attitude about the problem. Capt Jack Sparrow





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