I was out in my rib suddenly engine changed tune .rattled for a bit and stopped .wouldnt start.towed home.trying to start sounds like it is jamed. Put in to gear and turned prop 1/4turn into neutural turn key engine turns3/4 and stops again.engine is a yamaha 80 autolube any advice would be greatly recieved thanks simon
Does the prop rotate freely in neutral?
Does the engine rotate freely with the plugs removed?
Although you don't have a pull start cord fitted permanently your engine will be able to fit a rope round the flywheel for emergency starting.
That should at least help you split the problem into three different parts - gearbox/transmission, powerhead, starting system.
Thanks for all your help just give engine to engineer to have a look for me .i worried i would just make things worse and trying to stay optimistic that i will get out on the water before the end of summer!!!!!"!!!!'!!!!?