"Swarup" and "Tisson" carb spacers/inserts

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Ray O'Donohue
Parallel Twin
Posts: 119
Joined: Tue Oct 13, 2009 8:11 am

"Swarup" and "Tisson" carb spacers/inserts

Post by Ray O'Donohue »

Older members may remember the little ads in the motorcycle magazines for these inexpensive little sheet metal gadgets,advertised in the late 70's as giving miraculous performance improvement for nearly any bike. The ads were pretty much incoherent. The devices were apparently meant to provide some sort of swirl adhancement and/or anti-reversion. Everybody in our shop though the ads were hilarious,but I wasn't so sure. I never did see one,or know anybody that tried one out. Anybody ever tried them? It always seemed to me that a Ducati bevel might well benefit.
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