the red choke button that i pump 3-4 times before i crank up the mower as lost its suction so now the mower wont start can that be fixed i already replaced the o-ring but that didnt solve my problem it a briggs and stratten engine

Jim, June 2007

This should perhaps be another question I have the same fault But mine will fire up for a few seconds ,so this could be fuel starvation so how do I unblock if this is the case?

Derik (Very tired non electric starter), June 2007

Hi Jim
That little rubber button is the primer. It shoots in a few mls of petrol into the carburettor to start the engine. If it has lost its suction, the rubber is broken and needs to be replaced. can be got readilly at any lawnmower repairer. Easy to replace also. When you get a new one you will know better how to replace it.
If you need to keep it going till then you can always take off the air filter ( usually 1 screw through it) and put in some petrol straight into the carburettor. (Only about a teaspoon full). Then start engine and replace air filter. Hope this helps.

Diarmuid Horgan, June 2007