I had been running at very low rpm waiting my turn to line up....engine prob been running for 20 mins waiting my turn,
I get my self lined up open the throttle and the engine stumbles and would not increase its RPM and quite lumpy with it...I abandon my idea of taking off and need to clear the runway,
I just about manage to get clear of the runway as there is a queue behind me...I think I then closed the throttle completely and opened it again and it was back to normal,
After a ground run of 5 mins and trying to keep the revs up....not easy as my single nose wheel brake is not that effective...all seem fine on both mags so I get airborne with without further probs,
I suspect some kind of flooding...what do you think guys....just to add...it was a very warm day at around 24c 73f...dew point was around 8c 46f.
Nick.