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You are watching: Briggs and stratton ignition coil gap

I"ve got a B & S 10A902-2072 lawn mower, freshly pulled the magneto turn off ... Yes, ns know, not a an excellent idea - i didn"t think the space would be too crucial.But it won"t start now, it started OK before dismantling.Anyone recognize what the gap from the magneto armature to the rotor have to be on these machines?I"ve looked at the parts list and owners hands-on from, nothing to help there.tia, Peter
put the coil on, obtain the bolts simply tight sufficient so you deserve to still slip it closer come the flywheel (turning the flywheel so the magnets room away makes things easier) take a disagreement bill, slip it in between the coil and also the flywheel, till it slides out through a tiny force, yet doesn"t tear, climate spin the flywheel by hand, come make sure it doesn"t rub until you acquire it right. Then tighten the one bolt the doesn"t hold the windvane on tight, the various other one simply tight sufficient to not make the vane stick.
The gap should it is in .006 to .010" at the magnets.I collection the magneto earlier and snug it up. Then turn the flywheel so the magnets are directly listed below the coil, and put a .010 feeler gage in between the magneto legs and the magnets. Loosen up the magneto bolts to allow the magnets to traction it down onto the flywheel through the feeler gage in between them. Tighten up the magneto bolts, climate pull the feeler gage out by rotating the flywheel.
thanks guys (and Tranny ~ above, it worked a charm. It"s amazing just how much grief you deserve to put these little engines through and they still save chugging along. I just mowed the prior lawn - around a metre high, largely weeds - partly since the maker was set up, partly due to the fact that I was placing it off - and also it walk a charm.Cut out midway and also I had to let that cool down, my theory is that the wait filter bolt is loose, wherein it threads right into the carb is stripped, for this reason too lot air is getting in, also lean a mix, to run to hot, having actually to take breaks occasionally.The next job is to discover a slightly oversized bolt for the air filter.Thanks again for your advice, Peter
so the bolt going right into the carb is stripped, that holds the wait filter on? wouldn"t operation it long without solving that first. Dirt acquiring in isn"t good. She"ll still last you a quite little bit more....... Briggs deserve to take punishment, and also keep going..... Use nothing but briggs

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