Reply To: Wheel Horse Starting…Choke

[stuart]

I have a parts list for a 1974 “A.800 RANGER” model and it has a vertical crank 8hp Lauson engine fitted.The carburettor will have an adjustable needle valve (main jet) and an adjustable idle mixture screw which would need setting up.I would suggest one and a half turns each as a starting point.Due to the age of the engine,general wear and tear and how well its been serviced etc will have a huge effect on its running and reliability !!.
If the engine dies when the throttle is opened this would suggest a lean mixture.
Also make certain the contact breakers and condensor are in good condition and correctly set.