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    YZ490 Blaster Build started

    The blaster pipe could fit inside it lol
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    YZ490 Blaster Build started

    Just ordered a new pro circuit pipe for the old girl. Waiting on it to get here to finish some fabrications
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    YZ490 Blaster Build started

  4. H

    Blaster keeps blowing topend

    I actually couldn't get it as rich as I wanted without going too rich with the br8 so the 9 was the ticket
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    Blaster keeps blowing topend

    Well guys I did a full rebuild on the blaster and the crank ended up being shot. Looked to me like itd never had a rebuild. Mods -3mill vitos stroker crank -bored .080 over with Namura pistons and ebay cylinder - ebay cylinder head -Vforce 4 reeds -fmf fafatty pipe JETTING -32.5 Pilot -3rd clip...
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    Blaster keeps blowing topend

    No I didn't do a leak down. The pisto. I was running was a wise standard bore with a new cylinder. Cylinder was from ebay
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    Blaster keeps blowing topend

    I'll try that jetting set up and see if it works. Was running 93octane fuel. Probably am gonna go back to just a stock head.
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    Blaster keeps blowing topend

    Bought an 01 blaster went through 2 top ends in 2 weeks. Mixing 32:1 with klotz Jets- 40 pilot 4th clip on needle 270 main Fmf pipe, head was milled .035 before last rebuild. Had not even a tank of gas ran through before it completely fried the piston. Putting a new bottom end in to make sure...