transom
New Member
I have a 20hp Beta driving a 3 blade prop through a TMC 40 gearbox via an aquadrive. If I rapidly go from forward drive at 2500 revs to neutral I get a distinctive 'clunk' from the engine /transmission which has on occasions stopped the engine. If I reduce revs smoothly I do not get this propblem. Is somthing broken or about to break or is this clunking normal