I hope someone might be able to point me in the right direction here. When I start my MP# i have no issue but the revs hover between 1700-2000 then drop and cuts out. I can give it some throttle and it revs up but thats intermittently and with not move or jerks in movement. seems to happen every couple of months and when I leave it for a few days its right as rain. I have changed the oil and replaced the air filter. Was think the Carb but I have no idea.