General B&S Question

[Deere2me]

Not being a B&S dealer, I don't have access to power portal, however, I suspect that rpm is what the factory sets all the boxed engines at, no? If I bought that motor, pulled it out of the box and fired it up, it would have the top speed already set at 2900, correct? It's up to the mfg to set the top speed for whatever the motor will power. http://www.briggsandstratton.com/us/en/engines/push-mower-engines

[bgsengine]

Actually the top no load speed is set to the engine's spec number *as specified by the manufacturer* - So, an exactly identical engine that is used on a 20" pushmower will have a *different spec number* than one used on a 22" mower, because top no load speed will be different - Sometimes that *IS* all the difference between any two engines - so the engine spec's top no load is set by Briggs according to the equipment manufacturer's requirements.

Factory flunkies at the manufacturer don't have the skill or wherewithal to set top no load - they just slap 'em together and every xx (insert number, it varies) mowers is pulled off the line for QC checks by a manufacturer technician.

Manufacturer engineers the top no load, and Briggs builds to that spec. top no load gets set at the engine factory, and only *checked and verified* by QC techs at the equipment manufacturer.

Final validation is *supposed* to be done at the dealer during equipment set up, which is another reason buying equipment by mail order can suck - if you get a "bad" unit or one that you don't know how to set up, you end up with a "lemon".

It is why we *ALWAYS* recommend buying your machines from an equipment DEALER with a service department that knows what the hell they are doing. Box store flunkies just know how to slap a machine together, but most have no idea how to check them over and make sure everything works right. Most of the regulars on here could do a better job of set up than those minimum wage summer workers.

[Deere2me]

Good explanation! Thanks.