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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 28947
Experience:  Service manager and technician for all brands of engines with 40 + years of experience.
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Briggs & stratton key start. brand new fully charged battery

Resolved Question:

briggs & stratton key start. brand new fully charged battery will hardly turn engine over,
remove spark plug have plenty of power. would welcome ideas. model : 12s800 to 12s899
Vic.
Submitted: 1 year ago.
Category: Small Engine
Expert:  Curtis B. replied 1 year ago.
With new battery, and not enough torque to spin engine with the spark plug installed. The starter is bad, and will not pull the load of the compression. Engine is not hard to crank and there are many problems with the small starter motor. I thnk you will find only fix will be to replace the starter. Sorry.
Expert:  Curtis B. replied 1 year ago.
https://www.jackssmallengines.com/Jacks-Parts-Lookup/Model-Diagram/briggs-stratton/159426/70696
Customer: replied 1 year ago.
Hi Curtis B,
Could not reply to your advice until tried a remedy ( new starter)which arrived today, duly fitted with fully charged battery. Result, same as before, with s, plug out will spin like a top, plug in will hardly turn let alone start. Am starting a crashing Migraine, and will have to negotiate a second mortgage what would you suggest I do now to rectify.
Best regards
Vic.
Expert:  Curtis B. replied 1 year ago.
Engine should not be hard to crank! Unless it is out of time. You haven't hit object with blade that could have sheared the flywheel timing key?
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Expert:  Curtis B. replied 1 year ago.
http://outdoorpowerinfo.com/repairs/flywheel_key.asp