29-11-2014, 12:59 PM
It sounds like it's misfiring? That'll give you a rough noise and a lack of power. It could be due to many things though!
Has it had a service recently, especially spark plugs?
If its idling at the right speed (800rpm ish when warm) and doesn't stall then the idle valve is probably ok.
Has it had a service recently, especially spark plugs?
If its idling at the right speed (800rpm ish when warm) and doesn't stall then the idle valve is probably ok.