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I have an 83 Venture xvz1200. I just cannot get it running correctly. I’ve put around 1000 mile on it this last year. Under heavy throttle with the rev’s under 3000 RPM the bike “burp and belches” until the rev’s get up higher around 3500 RPM. Also, at idle it will tend to “stumble” a little lower several times them die. It starts fine some times and then doesn’t want to fire up. Put on trickle charger and later it seems to fire up fine. Some times when trying to start it up after it refuses to start, I have a major backfire. Sounds like a 3006 shot. Mileage is poor, around 28 MPG. It does not run as smooth as it should, nor have the power it should. Seem like it does smooth out around 75 MPH. History: Bike sat for about 6 years before I bought it. The gas tank I was told had been drained but not the carb’s. Little wd40 and battery charger and new gas and lots of sweat got it running. Changed the oil and the filter and changed the coolant. I have replaced Battery and replaced cables from solenoid to starter and the ground line from battery to block with 4 ga soldered ends. Did not replace the braided cable from Battery to the solenoid. I just had to replace the Voltage regulator /rectifier as I started seeing 17 Volts at the battery. Now I get about 13.8 VAC from the stator leads and 13.6 VDC at battery, running at 3000 RPM. Pulled and cleaned the carbs last year. Sync’d them early this year and went to maintenance day and re-synced them there. Disconnected the YICS by joining the vacuum lines together on the left cylinders and again on the right cylinders. Replaced the fuel filter last year and have run couple cans of Seafoam through the system (½ can per tank of gas). And replaced the plugs twice and replaced the wires and caps early this year. Other items re-soldered the CMS (Twice) and most of the time I don’t have warning signals anymore. “Brake and lights” are the ones I see every once in a while. Have not messed with the TCI but did pull and test the pressure sensor and it checked out. Checked the float levels on the carbs per the “manual” and each had a gas level between the 3/8” and ½” shown in the book below the diaphragm centers. I’m considering pulling the carbs and cleaning them again. Getting real close to taking it into a shop, but hate to give up. Open for suggestions?