my problem is after 2-3 weeks i cant start my 912 ul eaven with a primer :blink: and if it start it will restart 1/4 turn and it run smooth eaven after 2 days it will start 1/4 turn but if i wait 2-3 weeks man it wont start .after 20-30 mins of starting it will start. in my mind its a fuel problem maybe the fuel pump is not as strong as before :huh: the carbs,the gearbox ,the synchronise is perfect ,i dont think the electronic is the problem because after 20-30 mins of starting there is no gas on the plugs there are dry :blink: i check the sparks they look realy thinn i close the gap but no change. by the way the engine is second generation not with the aluminium box ignition
anybody can help
stephan from montreal,quebec,canada :unsure: