Hey there J, so sorry for not responding earlier but between all the things summer has tp offer and the fact that I have all but given up on this thing have made me lose interest. However in answer ot your question, its a 80 G, special . I have tried everything and am still at square 1. I am almost leaning now to the TCI unit. Its new quirk along with all the former problems is it will siddenly increase RPMS from 1500 to 3000 all by its self and only when it feels like it , will it settle down to 1500 and then eventually die. I GIVE UP .I am seriously eyeing the cutting rorch with each new problem.New diaphrams, new poilot jets 1size up .45, pilot set screws at 3 turns, new plugs, floats set and reset many times, carbs throughly cleaned and recleaned and recleaned again at least 5 times, new carb mounts, synced and ballanced with merc sticks . Nothing has worked. I have not touched the elect timing as it has never been touched and only have seen these faults in an old style point ign systey with a faulty advance mechanism. This one is electronically controlled.
also there does not seem to be any way to check the tci unit to prove its within specs which arent listed in the haynes book anyway. I just love the old " REPLACE WITH A KNOWN GOOD UNIT". How many of us have that option? .