I have run about 10 tanks through my engine on my Miss Bud. About 2 days ago the engine started acting funny. When I start it, idles fine, runs fine till I get about 3/4 way through the trottle then it wants to die and really bogs down. I have leaned it out, richened it, cleaned the needle valve, replaced glow plug without any progress. Does anyone have any ideas????
Thanks

Jeremy