no idea, i stopped pursuing doing any upgrades with this engine once tom let me know that what aftermarket parts supply that it had had at one time had pretty much vanished. right now i've got a spare crossfire engine for the baja that needs a piston/jug, the 150 from the sunl and this sym along with the 250 for the rockhound. basically i have a running "floater" can't decide whether to dump this one in the sunl, fist eh front end and sell it off and keep it's original engine to use the jug etc from to make a spare for the baja.
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