jackcobb Posted August 17, 2003 Posted August 17, 2003 I was trimming around the house, where the 720 can't get close to and hit a stone about the size of half a baseball. The mower 3HP Briggs launched it good, but died. Pulled and pulled, wouldn't refire. There is no spark at the plug. I pulled the flywheel cover, and took the nut off the crank. The key isn't sheared but the flywheel keyway is about an 1/8" from being centered with the crank keyway. Would just this much throw the timing off enough not to fire? No spark? Thanks-------Jack
PatRarick Posted August 17, 2003 Posted August 17, 2003 If the flywheel keyway is 1/8" off, that is more than enough to prevent spark on a point type ignition system. The flywheel key must be at least partially sheared, since a good key will require the keyways to be lined up for installation. Pat
jackcobb Posted August 17, 2003 Author Posted August 17, 2003 Thanks!!!!!! I'll stop at the "Briggs" house after work and get a new key.
Dadsy98 Posted August 17, 2003 Posted August 17, 2003 A new key will fix you right up. Now, where the H did the rock come from? I'm always a little nervous when I mow, never know what the kids or dogs dropped in the yard. Always scanning ahead...
Agricola Posted August 17, 2003 Posted August 17, 2003 This sounds like something my 80 year old uncle would do when he is mowing. He tried to climb up a 300 boulder once with my Landlord. Thank heaven he didn't hit the rock.
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