I am having issues with my 750. I got the bike(1990 VN 750)a couple weeks ago from a "friend". Its my first bike and I was thinking it was going to be magical. I was wrong:doh:. It lacked alot of power. I had many suggestions as to what it could be but nothing worked. I put some seafoam in the tank and then all hell broke loose. After that it started chugging and lurching. Then it died. Now, It wont even idle (when I can get it started). When I do start it the throttle has to be wide open. It usually takes a couple of tried to do this. It picks and chooses what day it wants to start up. Today i got it started (first time in 2 days) and I had alot of white smoke for about 10 minutes and it started back firing. I have tried carb cleaner but it hasn't worked after 2 cans. :blah:. Now I am desperate. I love riding but I can not right now with the problems I am having. Please help.