I had a vstar 650. I had hk pipes, hypercharger and rejetted it. Wasn't too bad. Just take it slow drilling out the brass plugs to get to the screws behind them. I took the carbs off the bike to do it. And i replaced the screws that hold the diaphragm covers on too, they strip easily. Theres a 650 forum that offers tons of support for those bikes.
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