i have had intermittent problems with the motor running WOT, feeling like its not getting fuel and thought i had fuel line issues. i have worked on the fuel line and thought i had it fixed until today. Normal top speed is about 26 MPH today to problem occured again and could not get above 8 MPH, unless i choked it and then it ran full speed. Is this a fuel pump issue, carborator or what? even when it bogs down it sounds ok - does not smoke