stomp 140, wont start, poor compression, wont tickover

[boya]

any idea's on what it could be? When kicking the bike over it feels more like a 110 than a 140 and it wont start from kicking it, you have to bump it and it will fire straight away, i have to do it like this all the time until the bike is warm then it will start off the kicker first time but still feels like there's hardly any compression there, the bike wont tickover at all either unless i turn it right up then it will. When the bike is going it keeps up with 3 other stomp 140's without any problems? Any idea's anyone?