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    Looking to rechamber my head. What C/R should I shoot for 92 octane?

    I've got a ported 240 (at 73mm), Hot Rods +4mm crank, V4 reeds Lectron carb, custom made pipe and a rechambered head with I believe a 28cc chamber. I cut the head a couple years ago and wrote the chamber size on it but can't read it now. But I believe my C/R is to high. I've got it apart now and...
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    Help with timing.

    Hey I have a Blaster that heats up when cruising. I finally got around to checking the ignition timing and it does not advance. Any thoughts or ideas on why the CDI would run but not advance?
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    PWK28 needle size

    Ok guys a few of you know me but I'll list my mods and problem. Vito's 240 kit bored to 72.25mm, V3 reeds ,PWK 28 (KX85 bored to 30mm), crappy pipe (KDX200),Vito's stuffer stock stroke crank. No porting. 13X30 sprockets. Bike diet of -150 pounds by stuffing the Blaster motor in my 1978 DT175...
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    Anyone have a cast 72+mm piston in stock for a Vito's BBK?

    Like the title says I need a new piston for my Vito's BBK. I'm sure mine will clean at .25mm but I think the first over piston is .50. If anyone has one in stock or knows where I can find one please let me know. Vito's site says they are out of stock. Thanks.
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    Vitos 240 port timing?

    Ok guys I have a 240 kit with a 3mm stroker. I'm trying to get a pipe custom built and the builder would like the port timing specs and Vito's doesn't want to give that info up. Not sure they even know!! I don't have any other choices as I may have committed a sin against Blaster owners by...