Join Date: May 2010
Location: Oklahoma City, Oklahoma
The rear cylinder only runs with the choke on.
Got a problem.
I pulled the carbs, disassembled them, cleaned them with boiling lemon juice, and berrymans carb cleaner.
I noticed that the pilot jet in one of the carbs had been sheared where the flat blade would screw it out. It was split in a couple places but still open. I left it in there and hoped for the best.
I also noticed that the float on one of the carbs seemed to have more free-play and less resistance than the other float.
However, the "U-pins" that hold the floats in the float bowls were stuck beyond my frustration thresh-hold. So I left them in there and hoped for the best as well.
Before I pulled the carbs, the rear cylinder would only run on full choke and some throttle. After cleaning the carbs the rear cylinder still only runs on full choke and some throttle.
This is an '86 VN750A2. It has straight pipes with eyelets added for a little back-pressure. I am running the stock air filter boxes with K&N filters. I am also running a AGM sealed battery. The EPA stuff is pulled with the appropriate air intakes and vacuum lines plugged.
Somebody please give me some advice... I know I should have replaced the pilot jet and bulldogged the float bowl pins. I suppose I need someone that knows more than me to say so and throw in any additional ideas.
Thank you for your help!!