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1972 Yamaha XS650 project

Discussion in 'The Garage' started by scanney, Dec 20, 2019.

  1. scanney

    scanney XS650 Enthusiast

    Question about re-installing the petcocks. I cleaned and have new rubber gaskets. When I removed the old gaskets there appeared to be a small amount of gasket sealer on them. See pic below. What do peeps recommend - gasket sealer or no gasket sealer?
     

    Attached Files:

  2. scanney

    scanney XS650 Enthusiast

    I bought some F10024 Purolator filters. See pics. Way to fn big. Suggestions?
     

    Attached Files:

    Mailman likes this.
  3. Mailman

    Mailman Hardly a Guru Top Contributor

    The space under the tank and around the carburetors is really tight. You might have difficulty finding a place to fit them. My first attempt was some clear fuel line made by Emgo, with these clear box filters,
    29A41EBA-D3AB-4323-8BD8-7B7B422B5DF5.jpeg

    But everything about that set up was too bulky. The fuel lines were real thick and stiff and the filters were too big to easily find space for. I finally settled on Tygon fuel line and small cone filters, the Tygon is much skinnier and very flexible and the cone filters fit better too.
    CE4DD3E3-8A6A-42BB-A28C-3266A936D947.jpeg
     
    gggGary and TwoManyXS1Bs like this.
  4. scanney

    scanney XS650 Enthusiast

    Update - Success! and Failure! I rolled the bike out of the basement today (with help of course). I installed recently charged battery and inflated tires to specs. See pic of bike! Time to put gas in it and start it up. It took awhile, but it fired up and idled nicely. What wasn't so nice was the oil leaking (heavily) from the side cover over the oil filter. See pics with gasket side one and side two. When I reassembled I cleaned both side of round cover and side case so surfaces were smooth. When I installed new gasket I applied gasket sealer to both sides. A washer was missing on one of the two allen bolts. I didn't that would be an issue. See pic. I was quite surprised it leaked and even more surprised at how much it leaked. Please school me. Thanks.
     

    Attached Files:

    gggGary and Mailman like this.
  5. Downeaster

    Downeaster Everything in XS Top Contributor

    Pretty sure there need to be copper crush washers under those bolts to seal the gap. Probably where your leak is coming from.

    No need to put gasket sealer on the gasket, in fact it's generally considered counter-productive.

    Pretty bike, BTW!
     
    Team Junk, gggGary, scanney and 2 others like this.
  6. GLJ

    GLJ Never go faster than your guardian angle can fly. Top Contributor

    Blue goo is not your friend. Should not need it. No washer is called for under the bolt. I use red grease on my gasket on my XS2. Make sure everything is spotless and the bolts are no longer than 20mm.
    upload_2020-5-11_16-48-27.png
     
    kshansen and scanney like this.
  7. 5twins

    5twins XS650 Guru Top Contributor

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    No, you shouldn't have/need copper washers on the two Allen screws, they're not called for. I know you often find them on these screws, but they are not needed. I don't use them and I've had no leaks there ever. Is that silicone gasket sealer you gooped all over? If so, someone should slap you, lol. As mentioned, no sealer on that gasket. I just oil mine, some grease it. No leaks on mine since I put it in service (2005). I've rarely changed that gasket either, maybe once.

    [​IMG]
     
    Last edited: May 12, 2020
    scanney likes this.
  8. scanney

    scanney XS650 Enthusiast

  9. GLJ

    GLJ Never go faster than your guardian angle can fly. Top Contributor

    Can't tell for sure but your bolts look longer than 20 mm.
    upload_2020-5-11_17-21-49.png
     
    scanney likes this.
  10. scanney

    scanney XS650 Enthusiast

    I'll check em. Came with the bike which I bought last fall. Thanks
     
  11. scanney

    scanney XS650 Enthusiast

    Of important note, did anyone notice the 12 pack of Corona(virus) behind my motorcycle in the garage?
     
    gggGary likes this.
  12. Steve C

    Steve C XS650 Enthusiast

    Hate to be that guy but those filters are on there bass ackwards. Coney side goes toward source. should be a flow arrow on there. the large volume is for junk storage. If you got junk in your tank, those will fill up pretty quick and stop flowing if you run'em like that.

    :twocents:

    [​IMG]
     
    TwoManyXS1Bs and gggGary like this.
  13. Mailman

    Mailman Hardly a Guru Top Contributor

    Ha! You made me doubt myself! I see what you’re saying and that sounds logical. They are installed like that on my bike, and I still have a bunch in a bag out in the garage so I went to look at them. It’s hard to photograph something clear, but I think you can see the arrow, just the way I have them installed.
    F5B41BDC-D151-4221-8D2C-EF6D491E1E0A.jpeg
     
    Team Junk, TwoManyXS1Bs, GLJ and 2 others like this.
  14. Steve C

    Steve C XS650 Enthusiast

    That is truly weird, are they Australian made? Cuz every cone filter I've ever seen has a flow arrow in the opposite direction. Which makes sense right? the chamber is for debris to collect in and tell you "hey, I'm dirty over here". before it completely plugs up.
    upload_2020-5-12_6-41-17.png
     
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  15. Mailman

    Mailman Hardly a Guru Top Contributor

    I totally agree with that logic. I was looking closely at them last night and what you’re saying makes sense.
     
    Jim likes this.
  16. scanney

    scanney XS650 Enthusiast

    How about that 12 pack of Corona?
     
    Mailman likes this.
  17. Mailman

    Mailman Hardly a Guru Top Contributor

    You’re not gonna drink that are you? :laugh2: Sorry about all the cross talk on your thread. Carry on!
     
    scanney likes this.
  18. scanney

    scanney XS650 Enthusiast

    No worries, just trying to insert a little levity. I appreciate all the help you guys provide. Thanks!
     
    GLJ and Mailman like this.
  19. kshansen

    kshansen XS650 Junkie Top Contributor

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    I agree with most of the thoughts on the "blue goo".

    However once in a while a gasket might need a little help, say if the surfaces have been damaged due to PO getting carried away scraping old gasket off. It is always best to use a fine file to smooth off the damaged area, but sometimes due to the design of a part that is not possible. Such as the area like that cap for the oil filter with the surface recessed.

    In that case if I was to attempt to use a silicone sealer I would apply it much like you would if using a coat of grease to make gasket come off easy in future. By that I mean apply it with a finger tip and only leave enough to "wet" the surface. If you can wipe any off with your finger then it is too thick!

    I would rather deal with a slight leak that needs washing off once in a while than risk sealant getting someplace that stops flow of oil! If put on as heavy as it looks in the above pictures it is very common for the silicone to push parts of the gasket out of place causing an even bigger leak than if nothing had been done.
     
    GLJ and scanney like this.
  20. scanney

    scanney XS650 Enthusiast

    Thank you sir.
     

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