Hi all,
I have just joined this forum. I have a Sun Sport with a Mariner 55 on the back. It has had some issues in the past with a sheared woodruff key and battered prop but since rebuild has run fine(on land) Used this week it had some starting issues. When it did run it raced on of its own acord then dropped then raced etc etc. Carbs wer dismantled and cleaned (very basic) and fuel pump diaphragm checked. Some rubbish in one carb but no fuel being forced out of induction hole on pump. It did leak out the side gasket but this sealed wioth vaseline and when replaced and primed, the fuel ball was staying hard. Got it running and ran fine for hour or so then parked up. When used again, wouldnt start easily and engine ran on approx 1/2 throttle but no more, just chugged. Found impeller blockage so may be the cause. Cleared this but wont start now. I have removed flywheel as found advance mechanism stiff cos of tight fitting ring under flywheel, some washers freed this. Dont know if they were missing originally or some sort of wear or distortion. The previous has obviously timed and tightened flywheel but no woodruff key location possible so does anyone know how to time and what the settings are BTDC. Thanks and regards Tony
I have just joined this forum. I have a Sun Sport with a Mariner 55 on the back. It has had some issues in the past with a sheared woodruff key and battered prop but since rebuild has run fine(on land) Used this week it had some starting issues. When it did run it raced on of its own acord then dropped then raced etc etc. Carbs wer dismantled and cleaned (very basic) and fuel pump diaphragm checked. Some rubbish in one carb but no fuel being forced out of induction hole on pump. It did leak out the side gasket but this sealed wioth vaseline and when replaced and primed, the fuel ball was staying hard. Got it running and ran fine for hour or so then parked up. When used again, wouldnt start easily and engine ran on approx 1/2 throttle but no more, just chugged. Found impeller blockage so may be the cause. Cleared this but wont start now. I have removed flywheel as found advance mechanism stiff cos of tight fitting ring under flywheel, some washers freed this. Dont know if they were missing originally or some sort of wear or distortion. The previous has obviously timed and tightened flywheel but no woodruff key location possible so does anyone know how to time and what the settings are BTDC. Thanks and regards Tony