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  1. #1
    Tony's Avatar
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    Installing 780 pistons/jugs. What I learned.

    Finally got some time yesterday to start putting the top end of my 780 back together. I tried two different methods, one that was detailed in the Cylmer manual, and the other method I read online.

    The manual shows you how to make your own piston holding tool out of a block of wood. This method requires you to install the piston on the rod and then turn crank until piston makes contact with the block of wood. This holds the piston secure so you can slide the jug down over the piston, this while compressing the rings. The Mag jug went on very easily...it practically dropped into place. I then move on to the center jug. For what ever reason I couldn't get the center jug on so I decide to try the other method.

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  2. #2
    Tony's Avatar
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    Second method

    The second method requires you to install the piston in the jug, and then install the combo onto the rod. You start by installing one clip in the piston and then putting the piston into the jug with the wrist pin hole exposed. With the hole exposed you postion it over the rod, insert pin and clip, and then slide assembly down onto case. I installed the piston through the bottom of the jug as it was easier to do while compressing the rings.This was a far easier method for me.
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  3. #3
    polarispa's Avatar
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    I use the wide plastic zip tie method

  4. #4
    Tony's Avatar
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    Quote Originally Posted by polarispa View Post
    I use the wide plastic zip tie method
    That, as well as the two methods above, are new to me.

    I assume you use the zip tie as a ring compressor and install jugs with the pistons installed on the rods useing the wooden block method above?

  5. #5

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    I cut a plastic bottle so I had about 2.5" strip and then taped it onto the piston with the rings compressed. the piston slides into the jug and the plastic collar slips off the bottom, you just undo the tape and on to the next one.

  6. #6
    www.springbreak-florida.com rgard32's Avatar
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    i just squeeze rings with one hand and slide jug over with other hand.....lol.

  7. #7
    Tony's Avatar
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    Quote Originally Posted by rgard32 View Post
    i just squeeze rings with one hand and slide jug over with other hand.....lol.
    You used two hands!!! I guess you had an assistant to hold your beer.

  8. #8
    Amateurs!


  9. #9
    www.springbreak-florida.com rgard32's Avatar
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    LMAO

  10. #10
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    LOL Nice one Z.

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