I mowed a brick the other day and mower came to a screeching halt. wouldn't restart. very hard to pull chord, fuel came out of exhaust. checked flywheel key, its good. checked cam and crank timing. slightly off, reset it. cranks easier but wont start. what did i miss?
I you don't have a blade on it they will not run either
SOURCE: the flywheel pin needs replacing on 3.5hp briggs and strat.engine
Take off the top sheet metal , there should be a nut & spring washer that will have to come off, they will be tight. Put the nut back on a few threads, use a prybar to put some upward pressure on the flywheel at the keyway side, while hitting down on the nut with a block of wood & large hammer. This should pop the flywheel loose from the taper shaft, replace drive key with ALUMINUM key!!
An impact wrench is sometimes necessary to get the nut loose.
SOURCE: MOWER WONT START
make sure that you have oil and that the airflow is not blocked,,,take the cover and tank off and look underneath, the flywheel is designed to have fins that circulate the airflow, sounds like the piston has welded itself(from lack of oil or airflow) to the cylinder wall. good luck
SOURCE: Briggs & Stratton 4.5 hp running rough...too much fuel
Hi did you squeze excess oil from filter so it can **** air in??
SOURCE: my lawn mower cranks but wont start I have
The magnets are fitted in the flywheel under the pullstart engine cover but i dont think thats your problem. It sounds more like fuel trouble. Remove and clean out the carb. and maybe renew the diaphram.
SOURCE: Cleaned the Briggs & Stratton Riding Lawn
kehmahcliff:
It looks like that your valves need to be maintenanced. This can be
done by small engine repair shops. They should have the proper tools.
Also the "timing" of the spark and the fuel injection could be a problem. I hope this helped you.
Greetings Joe
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