- 3 Sep 2015
Thanks for all replies! I am thinking it is starting backwards as it is only starting from cold when you stop the pressure on ignition key spring. As it loses turning momentum and almost comes to a halt, it seems to start and reeks smoke out of engine compartment. Sound rough as. Killing engine and then trying again it will spin up on key and if you keep going 10 seconds, it might fire reluctantly and then it is smoke free and running. Always spin it up with decomp to get oil up initially. The trick of spinning up and dropping decomp, only encourages the rough starting, as it starts at the end of flywheel rotation. It seems to bang against the compression as flywheel nears stop of rotation..........then rough as hell running and smoke.
Get it started and fine all day. I better check oil levels and see if they are raised with fuel dilution.
One thing I have realised now I may have been doing wrong, is I am not giving any throttle on start up. This is my second full season with this engine and all last year it started from neutral in tickover speed. Will try in 3/4 throttle along with the other things. Water impeller was first thing I feared for as I know how easy they get fins broken. I thought of oil pump gear too. The speed it is spinning at on the starter motor should start it I think..........sounds about same as last year.
More thought. What changed between last year and this year? If it worked last year, starting in idle position as mine has done for over twenty years. something must have changed. Do you have two batteries? if so, if you pair them to start the engine does this make any difference?