Engine dies!

[chris_psmith]

My kids KTM Pro Senior 50cc is driving me mad. Bike will start fine from cold and run for about 15 to 20mins then die, will re-start first kick and run for about 5 mins, re-start first kick run for a couple of mins and get worse and worse.
Each time it just dies, no incrase in speed or slow loss of power, it just dies, then starts first kick.
Getting petrol, cleaned carb and now stuck.
I thought if it was the coil it wouldn't start again when warm not start then die, anyone got any ideas? :bang:
Regards
Chris
PS also tried pulling out choke to see if it was too lean but made no difference.

 

[dezryder]

Gas cap not venting maybe?

 

[chris_psmith]

Good suggestion, just tried it, all vents fine and plenty of flow. Any other thoughts?

 

[dezryder]

Ya got me...I don't know enough about the little scoots to offer any good answers. Another poster here suggested that another person here with similar problems try ktmtalk.com. You might get a lot of good answers there. I'll bet your kids more bummed than you are. Good luck!

 

[MC73]

Is it overheating? You may have to adjust the clutch.

 

[chris_psmith]

It seems to be getting hotter than I would expect, hadn't thought about he clutch, I will check it next. Thanks. chris