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  1. #1

    need advice on xl 1200 rebuild

    Hey all i'm rebuilding my 2000 yamaha xl 1200 with the 1200pv motor. Im replacing all the barrels, pistons/rings in it im just not sure if i should buy a new crank, get my crank rebuilt or just get my checked ( if possible) as it seems ok. The motors rings had picked up on cyc 1 and 3 on the ports scoring the barrels and pistons (not sure od cause??). The crank seems ok all rods (wsm)and bearings seem ok with no play in them but on one cyc looks like it has some surface rust on the crank. any advice would be much appreciated as this is my first rebuild and dont want to be rebuilding it again in the near future lol..

    Im also blocking off the oil mixer and getting a kit put thru the carbies thanks jason
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  2. #2

    Join Date
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    how many hours on the motor?, its easier to send it out now than later

  3. #3
    Moderated
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    are you go to be using wave eater clips on the power valves when you rebuild, its reccomended for pv motors so the valves dont drop as they tend to when the pins come out.?

    as for your crank, i have been told with the gpr's the general consensus is around 200 hours ( of hammer time) on a crank before they get tired...give or take but you can also get them refreshed using companies like crankworks as they are not cheap for an new OEM crank and OEM is def beter then hotrods , in fact its best to avoid hotrods cranks.

    it would be a really good idea to assertain what caused the damage first before you rebuild it so there is no repeat....also going premix at the same time would also offer you addtional insurance.

    http://www.waveeaterproducts.com/

  4. #4
    Happily Self-Employed WFO's Avatar
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    Quote Originally Posted by izz0 View Post
    as for your crank, i have been told with the gpr's the general consensus is around 200 hours ( of hammer time) on a crank before they get tired...give or take but you can also get them refreshed using companies like crankworks as they are not cheap for an new OEM crank and OEM is def beter then hotrods , in fact its best to avoid hotrods cranks.

    it would be a really good idea to assertain what caused the damage first before you rebuild it so there is no repeat....also going premix at the same time would also offer you addtional insurance.

    http://www.waveeaterproducts.com/
    +1

    I would send it off the Crankworks to have it checked, true, and welded

    http://www.crankworks.com/

  5. #5
    YudLuz2's Avatar
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    Jason, Post some pics of the damage. We can probably help you better by finding out what happened. Depending on the hours of the motor a full rebuild may no be needed.

  6. #6
    hey thanks guys i put some pics up if you think you can tell me what the reason for this is that would be great. I'm not sure of the hours as i cant turn it on with the engine out... If i do the the crank i'm still not sure which way to go as i have heard bad things about reco cranks and hotrod cranks ?? Crank works would be a bit far to send as im down under in Australia lol.

  7. #7
    Yeah going to get some wave eater clips

  8. #8
    slydogge's Avatar
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    check these out! these are like the clips but a whole piece. They hold the
    pin in place and look stronger than the clips.

    http://www.sbtontheweb.com/Merchant2...oduct_Count=38

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