My 2.1 motor has recently started getting difficult to start cranking for up to 20 seconds. It does start eventually then runs rough for 30 seconds. It idles fine. When I take off it loses power and I have to give it more revs to stop this happening. Once warmed up it doesn't miss a beat, I can stop and start it no problems.
All this started getting worse when the battery went completely flat if that helps.
Does anyone have any ideas for my issue?
Thanks Greg N