Finally got my PX 125 back on the road. Dell Si 24 carb, Pinasco 177, and Simioni. Had a real bitch of a problem with a stripped selector rod and cruciform and had to get a shop to sort it.
40 ish miles on and all feels pretty good… in fact it feels great, the torque is amazing and hits 40 with little on the throttle. A bit sluggish pulling away in 1st, ldle speed not quite right yet and the plug is quite oily but nothing too major. The mechanic got it running ok with a 111 main jet which is still in there.
1.Which way should I go on size of jet at this point?
2. Mechanic, was reluctant to change the timing as he felt keeping it at stock 18 was more reliable. Should I change it or not? What are the implications of leaving as it is?
3. Running in speeds. What would you reckon would be the most I should push it to at the moment?
4. Plug chops. Is it WOT in 3rd and then kill the engine? And how long should I continue running easy before I do a chop?
Thanks in advance