Bought an 89 vn750 about a month ago. Been playing with it alot. Sat for eight months before I got it. Got the carbs cleaned and bench synced, ran great for awhile. Ordered a new gas tank as the one on it had pinholes. Got that installed along with another carb cleaning to go along with new jets and seals yesterday. Pulled off the emmisions stuff today cause from what I've been reading its not necessary. Ran the bike a little, felt really good, powerful and quick. Then it started bogging down till eventually won't start. When trying to crank no fuel coming out of petcock. Petcock vac line is running to carb beneath it. Opposing carb is plugged. Dont know what I need to do with vent at bottom of tank, vent by fuel sensor, or the hose that comes to a T right above the carbs that attaches to the piece in between them. I think the hose in the T or petcock is my problem. Any ideas?