The gas leak is in your tank seam near the seat due to rust. Trust me I know. Had the same thing happen to me in April. I had to completely restore my tank and rebuild the carbs. The gas seeps into the air box. The engine vent exits into the air box at it´s lowest point. When the engine is running, the positive pressure from the engine blows the gas fumes out of the air intake making the leak smell even worse. If your tank is not too far gone, I suggest you remove the rust from the tank correctly and seal the tank. Do Not use Kreem TM, to seal your tank. It does not work. Use either Red=kote or Craswell 2 part sealer.
You can post your question, answer or comment as a guest. Or
enter your e-mail to join the forum and get notifcations of new messages.
More 1981 Yamaha XJ 750 Seca information
Our discussion forums are intended for short messages. We also welcome more extensive motorcycle reviews.
Bikez also recommends that you check out the technical
data and the riders' rating for the 81 Yamaha XJ 750 Seca.
You can also rate it yourself. Use our efficient motorcycle
classifieds to sell or
buy
this bike. Your motorbike gets a high quality presentation. Ads are free.