Hi!
I need your help
I can normally fix engines but this time I can't find the cause.
My sons scoter stopped during driving.
Viarelli Monztro BN139QMB Euro4 Dellorto
- carburetor cleaned
- diaphragm carburettor replaced
- Fuelpump replaced
- temp sensor checked and OK
- airvalves x 2 checked and OK
- TPS checked and OK
- spark plug provides sparks
It now starts but dies after a few seconds
It dies when you increase the throttle
It is possible to restart after it dies.
Sparkplugg does not look wet
Reading other threads I now understand that the Euro4 Dellorto (ECS?) is not the best system but that knowledge seems to exist on this forum.
What to check now?
Can it be the ECU?
Thanks for the help in advance
// Tony from Sweden
I need your help
I can normally fix engines but this time I can't find the cause.
My sons scoter stopped during driving.
Viarelli Monztro BN139QMB Euro4 Dellorto
- carburetor cleaned
- diaphragm carburettor replaced
- Fuelpump replaced
- temp sensor checked and OK
- airvalves x 2 checked and OK
- TPS checked and OK
- spark plug provides sparks
It now starts but dies after a few seconds
It dies when you increase the throttle
It is possible to restart after it dies.
Sparkplugg does not look wet
Reading other threads I now understand that the Euro4 Dellorto (ECS?) is not the best system but that knowledge seems to exist on this forum.
What to check now?
Can it be the ECU?
Thanks for the help in advance
// Tony from Sweden