Re: Harley davidson myth\Farmall sound????

Posted by NEsota on January 23, 2005 at 22:16:23 from (4.159.166.31):

In Reply to: Harley davidson myth\Farmall sound???? posted by farmallkid From ONT. on January 23, 2005 at 15:36:58:

Have never owned a Harley but there was a time I thought that I understood the reason for; POTATO...POTATO...POTATO..., after reading the posts I'm not sure that I did. Here is the way I thought it was, when either plug fires the other one does too. With the 4 & 6 cylinder GM engines useing 2 & 3 coils respectivly, each coil connects to two cylinders and fires these plugs simultanously. Each plug fires twice during its' four cycles. Firing, both on the start of the power and intake strokes. They sound like other fours and sixes because firing at the start of the input stroke there is nothing there to explode. On a Harley because the cylinders are not on the same plane when either cylinder fires on the power stroke the other one may contain combustables and fireing them causes a disrution.

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