Motorcycle Questions? Ask a Mechanic.
Hi and welcome to JustAnswer, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.Initially, please confirm that the positive terminal is accessible.
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Let's try first charging the battery; battery charger to accessible battery's positive terminal. Then use the engine as the ground/- connection.
The battery may have "expanded" hence the "...Wont come out..."
Was the "...rubber hose thing..." attached to the battery?
That particular hose may just be a drain / vent hose for the battery.
That may be more to your advantage considering "...sat for a year..."
Great! Good to hear that the battery charging issue has been resolved, congratulations.
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