Honda Gc160 Ohc 5.5bhp Horizontal Crank Engine

This is a Honda GC160 OHC engine that I bought recently with a view to using it on an offroad kart however ive got loads of engines so its abit pointless keeping this . Seems to be complete, aparently runs well but ive not tried to run it yet so I shall give it a go later on The shaft appears to be 3/4 inch with a tapered end the starter recoil doesn t return brilliantly but I shall lubricate it to see it it helps Update, tried the engine and it runs amazingly smoothly for a single cylinder, no noticeable smoke off the choke!