Hello. I acquired this machine as payment for a debt, so I don't know a lot about it.
First, I had no no electrical functions at all. Battery would not take a charge. New battery and reconnect a grey connector at the front of the machine took care of that. Now it starts, idles fine, but misses and backfires as soon as throttle is opened, with parking brake engaged.
An acquaintance who claims to be a motorcycle mechanic recommends changing the air filter and spark plug. I don't have a dealer close, but a local auto parts store is ordering them for me.