so my 2002 bonny american (cali Model) has been acting funny. it started by almost complete power loss a few months ago. took it to mechaninc they said i overfilled the tank and plugges up the charcoal canisters. so it cost me 40$ for them to let it sit and evaporate and tel me something wrong.because it has since done this on a few more occasions. so this is what ive done as time has gone by. ived removed the charcoal evap system and plugged the vaccuum ports along with removed the unneccesary vaccuum lines, i removed the extra AI system after it happened again thinking it was running to lean and choking out the engine, i chaned the plugs after checking them to insure it was running lean... whichi it was. i upgraded to ngk iridium. the next tim it did it i thought it had flooded with gas and thought maybe since i had been running seefoam at one point then switched to k100 that maybe there was some debris clogging the fuel system so i drain the tank and pulled the carbs and gave them all a good cleaning and replaced the inline hidden filter with a visible pod filter, the problem remained. so i thought maybe the exhause had collapsed. so i check the pipes and see the behind the baffle that the pipes was not in proper alignment... on iether side. so i did the only thing i could afford and knocked out the baffle plate at the reear of the exhaust. and boom she started running fine... until the next day and back to the bucking studdering and power loss. there is a slight noise whichi think is valve noise . but after this long diatribe, does anyone have any suggestions? im at a loss, dont have enough money for a mechanic, and am looking for info instructions as to how diagnose/repair this issue.