justin_o_guy2
Serious Thumper
Offline
What happened?
Posts: 55279
East Texas, 1/2 dallas/la.
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Being as its a 4 stroke engine,, it fires twice per cycle, one cycle being all 4 strokes. TDC, always sparks it.. Its cheaper & easier to do it that way. Building it so that it only fires TDC compression would be a pain,
How do they do it on multi cylinder engines? A twin could fire tdc comp & ex, as long as the pistons ran in synch, but what happens when ya have 3?
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