I have an ORION LAWNMOWER with a VANTAGE 35 TECUMSEH
engine model no. OR 464 A.........it starts up really well but as the engine warms up it loses power and stops
I manage to start it agaig but it keeps stopping
have fitted new plug and cleaned filter but still the same
ANY IDEAS PLEASE
i'M UP TO MY WAIST IN LONG GRASS

TONY RUSSELL..........tonyrussella@aol.co.uk, September 2007

Check/Replace the primer bulb by the carb it may have a small nick or split. Will not allow fuel in with to much air.

Bruce, April 2012

the problem you have is under the primer button, there is a small brass like cup where the petrol runs through, it sounds like you have a hole in it, or air is getting into your line somewhere, i have just experienced the same problem

brendan, February 2008