my piaggio zip 50 (2002) has a great spark and clean petrol going into but wont start weve tried kick and staryer motor but neither work weve even tried running down the road with the starter on but still no joy
running doen the road pressing the button will just wear you out mate :D you need to get the compression looked at i think it may have a damaged piston and the compression is just too low to start it.its dead easy to do on these just undo the exhaust pipe and take it off then take the panel off from behind your heels as you sit on the bike and then take the black cover off the top of the engine and undo the 4 10mm hex nuts then the head will pull off and so will the barrel ,have a good look for any damage and replace any bad bits a rebore may well be needed as well as an oversized matching piston kit.
adam bike doctor(of milton keynes motorcycle centre)
January 2011
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