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    Gen 3 Non-Hemi Valves

    I keep seeing OldMiniBikes stuff saying the Gen 3 Non-Hemi's with the 5.0mm stems have 25mm/24mm valves. Is this correct? I was under the impression that the new non-hemi's came with the larger (27/25mm) valves...
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    TAV-2 Driven Pulley Tuning

    Anybody try tuning the 30 series Driven Pulley for drag racing a minibike? Either switching from the middle preset hole, or swapping to the stiffer "Yellow" Spring? I'm putting a built Predator on an El Lobo minibike with a 30 series TC. Going to try the 6" Pulley first and see how it...
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    Hemi 212cc Predator Increased Compression Clearances

    Brand new to the forum. Thanks for having me. Been working on first engine and first project. Anybody have experience with increasing compression on these 212 Hemi engines? It is all brand new to me. I don't want to do any Milling. I have a Black Mamba Jr Cam (0.275 lift) and want...
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