mpescatori
Serious Thumper
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Romanum Thumperium Cavalco, yeaaah !!!
Posts: 3547
Rome, Italy
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Sorry, misread ...
When I got my 1988 Savage she was on the OEM muffler and the OEM carb settnig, would bang and pop like crazy but yes, she would "light up" the muffler every now and then.
That's because of the "wasted spark" principle, i.e., the spark plug will go off both at combustion TDC and at exhaust TDC. This cuts down emission levels considerably, but may make the bike bang.
When she bangs, she's on fire (no pun intended)
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Maurizio Pescatori, Esq. Gentleman Rider
Mikuni BST40, K&N filter, Stage2 cam, Verslagen tensioner, Sportster muff, 120 proof moonshine, Pirelli MT 66 tourers... and a chain conversion too !
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