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Xj650 tank swap with a xj750

Discussion in 'XJ Modifications' started by Ethan Weber, May 21, 2019.

  1. Ethan Weber

    Ethan Weber New Member

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    Got a question for you all. I recently purchased a xj750 gas tank to increase my fuel capacity on my 82 xj650. I know the tank is a straight swap but i am curious to know what part is missing for this cut out section that is near the petcock. Either I will find the part or I will weld it closed.

    Thanks for any help.
     

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    Ethan Weber, May 21, 2019
    #1
  2. Chitwood

    Chitwood Well-Known Member

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    I would safely assume sending unit for fuel gauge
     
    Chitwood, May 21, 2019
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  3. XJ550H

    XJ550H Well-Known Member Premium Member

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    www.xj4ever.com sells a plate and gasket for that hole.
    it is an 82 maxim tank
     
    XJ550H, May 21, 2019
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  4. Ethan Weber

    Ethan Weber New Member

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    Awesome thank you!
     
    Ethan Weber, May 21, 2019
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  5. Ethan Weber

    Ethan Weber New Member

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    Thank you! I have sent them a request them for an order!
     
    Ethan Weber, May 21, 2019
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  6. PavelK313

    PavelK313 Active Member

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    If you can cut with grinder and use drill, I would advice you not to buy that block off plate and make your own instead.
    I bought this plate for my XJ550 tank, as soon as I started tightening the bolts that the plate comes with plate got warped and supplied washers cracked. I ended up making my own out of thicker metal.
     
    PavelK313, May 22, 2019
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  7. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Was that the plate that Chacal sells?
    I've never heard of any problems with it.
    If it was from him, did you contact him about the problem?
     
    k-moe, May 22, 2019
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  8. PavelK313

    PavelK313 Active Member

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    It was from XJ4ever. I didn’t contact them, as I never dealt with that company before I wasn’t sure how they go about stuff like that and didn’t want to “ruin” the relationship for future orders. But from now on I will always ask them if the part is OEM or not and request more information on the product and pictures.
     
    PavelK313, May 22, 2019
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  9. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    That's Chacal He likes to know of any quality issues so he can make things right, and see if the manufacturer can make improvements.
    Start a conversation with him.
     
    k-moe, May 22, 2019
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  10. Ethan Weber

    Ethan Weber New Member

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    Ok another question. I ordered and recieved the cover for the fuel sending hole as well as a new petcock assembly. Should I sand down around the old paint where i will be attaching thise new pieces before i bolt them on?
     
    Ethan Weber, May 24, 2019
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  11. PavelK313

    PavelK313 Active Member

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    I did. I would also recommend using fuel resistant sealant on both sides of the gasket.
     
    PavelK313, May 24, 2019
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  12. XJ550H

    XJ550H Well-Known Member Premium Member

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    there should be no paint under the petcock

    Yamaha did not put much paint on the underside of the tank
     
    XJ550H, May 24, 2019
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  13. Ethan Weber

    Ethan Weber New Member

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    You can see in my pic above there is just a bit if paint there and there is a pretty noticable depth variance from where the old petcock was. Im just gonna sand ot down a bit.
     
    Ethan Weber, May 24, 2019
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