07 hard start with occasional back fire and wont idle

07 hard start with occasional back fire while trying to start it and wont idle once it gets going. It is easier to start once it gets warmed up but it still wont idle. Any Ideas?

Whens the last time you checked the valves? or the last time you replaced the timing chain?

does it run ok otherwise?

If it's been a while, check the valves and have a look at the timing. If the bike has been sitting, you probably have a varnish build up in your pilot jet, making it act a couple sizes smaller, or just plain stale gas.

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