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Harbor Frieght Predator 224cc engine unbox, teardown, and hopup build.

we built this engine for my daughters kenbar streaker go kart. duromax 440cc 18hp engine, 34mm mikuni, header, arc billet rod, gps 308 cam, gps 50lb valve springs, port and polish head, flycut .030 off head for more comperssion. we also built a second duromax 440 similar, for our manco duece.

We bought this in 2007. Kenbar sc7 single seat go kart, originally had a briggs 5hp flathead engine and series 30tav. it had dual disc brakes and a rear differential. 22x8" balloon tires on back and 15x6" knobby tires on front. we have owned this for 15yrs now. bought it for my daughter when...