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  1. #1

    Join Date
    May 2008
    Location
    Cleveland Ohio
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    New Piston, without boring, question

    Ok I am replacing the pistons on a 95 slt750, due to the number 1 piston burning a hole (as usual). Yes I will remedy the fuel issue that caused the hole. But my question is, can I buy a stock piston in stock bore size of 69.72 for this 750 along with new rings and NOT have to bore the cylinder? Or will I need to go up to a bigger bore size to make up for 17 years of the stock piston wear on the cylinder? Trying to not have to replace or bore the stock cylinder.

    Thanks in advance.

    and yes I did use the search before posting this..lol


  2. #2
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
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    17,328
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    Welcome to the Hulk Dsmed.

    It depends if the bore is out of round, worn out, or damaged.

    If you get a new piston and rings, you really want to have the cyl honed. And that will remove some material which makes the bore bigger and clearances larger.

    Can you do it? yes, Should you do it? depends.....

  3. #3

    Join Date
    May 2008
    Location
    Cleveland Ohio
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    2
    Yeah the cylinder is in great shape actually. But I figured we'd have to hone it slightly. Just wasn't sure if I would be able to stay with stock piston and rings or have to go up slightly.

  4. #4
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
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    Have the cyl honed and see what the bore size is. Honing is cheap. If the clearances are within specs, you can install a STD piston.

    If not, order a .25mm oversize piston and have it bored.

    Or you can run it as is. Might be little noisy and have lower compression, but should get you through the summer (as long as clearances aren't way excessive) if you plan on doing the entire top end over the winter?


    Where in cleveland are you? I'm in Euclid

  5. #5

    Join Date
    Jul 2011
    Location
    Barrie, ON
    Posts
    3
    If you already have the thing apart don't chance it over spending an extra $40 to have the jug bored. Do it right and forget about it.

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