206 singles. Is it spark plugs?

while lifting the car (it doesn't matter in 1st or 2nd gear) the vehicle kicks in a series by hitting enormously as "stupidly stupid". inevitably the person is pushing the clutch but I tried to get up at idle, no problem or by pressing very light gas. & nbsp;

I haven't changed the oil or water for 6 months. In my opinion a little neglected. Parts need some cleaning (catalyst manifold throttle etc.) Could it be from

or spark plugs? Should I try to renew the spark plugs? / div> EErgul 2013-02-17 01:54:42