Jug base gasket

Discussion in 'Engine' started by Robert Zumbro, Sep 7, 2021.

  1. Robert Zumbro

    Robert Zumbro Member

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    I noticed I got an air leak on my cylinder base gasket so I'm gonna replace it..my ?? Is should I use rtv copper for extra insurance with the gasket?? Opinions plz
     
  2. Awk08

    Awk08 Administrator Staff Member Technician

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    Factory Yamaha or Cometic base gaskets only
    no green, blue, black paper, chiwanese gaskets
    proper heat cycles and retorque head and base gaskets = no sealant needed
     
  3. Robert Zumbro

    Robert Zumbro Member

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    I don't have to replace the head gasket with it do it?? And what's the proper heat cycle for the blaster??
     
  4. Awk08

    Awk08 Administrator Staff Member Technician

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    You don't have to replace the head gasket if you anneal it before reinstalling.........




    Do 3 heat cycles,, I never used a temp gun but until I couldn't hold my hand on the cylinder for more than a few seconds without getting burnt,
    after the 3rd heat cycle/cool down, retorque the head and base nuts.

     
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  5. blasterBruce

    blasterBruce Member

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    If you didn't remove the head you won't have to replace or anneal it, oem gaskets are best, never used any copper on a base gasket, I use yamabond4 on the reeds/gaskets and cases.
     
  6. Robert Zumbro

    Robert Zumbro Member

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    But no Yamahabond for the base gasket correct??
     
  7. blasterBruce

    blasterBruce Member

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    No not needed, oem gaskets seal well
     
  8. Robert Zumbro

    Robert Zumbro Member

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    What causes the gasket to get an air leak??
     
  9. blasterBruce

    blasterBruce Member

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    could be a number of things, nuts vibrate loose a little, not properly torqued, cheap or inexpensive gasket
     
  10. Robert Zumbro

    Robert Zumbro Member

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    Yeah I'm not the one that rebuilt it so idk what kind of gasket is on it now..I ordered OEM ones though
     
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  11. Larry's Shee

    Larry's Shee Active Member Technician

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    Also not doing heat cycles and retorqueing after
     
  12. Robert Zumbro

    Robert Zumbro Member

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    Thanks for all help guys..just waiting on the gasket to come to replace it
     
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