Join Date: Mar 2009
Location: João Pessoa - Paraíba
Finally ressurrecting my vn750 after three and a half years frustration
First, some history, then, some issues I hope this community can help me with.
I bought my vn750 in 2008, it´s a 1995 model. As this is not a common bike in Brazil, mechanics do not know much about it and tend to walk away from it. Mine had been mistreated for a while: carbs were dirty, the bike had been stalled outside in sun and rain, it wasn't starting very well. I bought it cheap and thought I could improve it´s performance over time.
The first year I rode it on and off. It always had difficulty starting up, no matter what I tried. When it ran, however, I really liked it, lots of power and kind of a no-nonsense robust bike. So I decided to invest a bit more.
I found a mech that said that he knew about it and could wrench on it. He took it apart and started working on it. Painted the engine, painted the wheels. Then stopped working on it. That is more than 3 years ago. All this time the bike stood there, dismantled.
Only recently did I discover a mechanic with a good workspace that seems to know how to deal with the bike. I brought it over to him, he´s putting it together. So far he´s checked the engine (says internally it´s in tiptop shape, only has 29k miles on it), mounted it in the frame, connnected the drive shaft, and is now starting on the supporting systems (cooling, electrical, brakes, etc.).
I doesn´t have to be beautiful for me, but I want the bike to be reliable and safe. If it proves to be so, I´ll invest in it over time and personalize it with my son, who has shown growing interest. He´s 16 and it would be a nice project to embrace together.
I have some questions that maybe you can help me with:
- The mechanic discovered that the ignition of the rear cilinder was one point off. Could that explain the difficulty in starting it up? What other consequences could it have for engine and riding behaviour?
- Here in Brazil, gas comes with 30 percent ethanol. What does this do to the bike? Would it be better to ride it on premium gas (avaliable, but a lot more expensive and higher octane)?
- I recall that the rear cilinder, on starting up, had white fumes coming out that disappeared after running for a while. What could this be?
I have said it before and I´ll say it again now: this is a great site and my learning curve has been steep here. Theoretically, I could finish the bike myself now, but for lack of workspace, tools and time I prefer it this way until it runs again. Then we´ll see where it goes.
Thank you all for your patience and all the best from Brazil.