My son-in-law has recently got his "P's" and is really enjoying riding. He's had the bike (ZZR350) serviced and it starts first time now which is a vast improvement. However, the last 2 times we've been for a ride, the bike has spluttered to a halt after about 8 kms of riding for no apparent reason. If you leave it for a few minutes then start it, it starts and runs again. Tonight it got about 10 k's from home and died again. It refused to restart altogether so we tried pushing it, still no go. Waited a few minutes, choke on, and it started and ran fine. I took it for a quick ride and really revved it (10-11000 rpm) and it went like a shell. So, is he not using the revs peoperly and "babying" it which causes it to "load up"?? He's a new rider and probably thinks that he should get the thing into top gear as soon as possible, like you'd do in a car. Any suggestions??