First I would put the bike in any gear and rock back and forth just to make sure the engine isn't seized. Then I would pull the green wire off the starter solenoid to see if the hissing goes away. If it goes away pull the starter and troubleshoot it. The noise could be arcing that your hearing from a possible locked up starter.Have a 2007 K9 Chopper. Put a new battery in the bike. When I turn the key the lights and speedo light up. When I try to start it makes a light hissing noise and will not turn over. Any ideas what the issue may be?
Unfortunately that's not the issue. But I appreciate it SlimThis bike had a hissing issue too
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