Code 86/ 86-1

[The Gecko_imp]

Same experience here. On our CB a week battery may be enough to start the engine, but it has already caused the FI light come to come ON on my bike. You put a new battery in (they usually come fully charged), start the engine (! the FI light will stay ON !), ride half a mile and the light will go OFF). Just reving the engine is not enough. The code your bike has thrown and the FI light both have the same cause.
Good luck, I hope my problem is your problem.