I love my Supertigres...

The problem with them ( at least in my Experience ) is NOT the break in procedure, but the slight weirdness to their carb setup.

Some throttle barrels leak air like a sieve from the sides, throwing off the mixture.

Supertigre includes a rubber seal to try to help this, but the seal itself lets in a lot of air.

Couple this with the mid range to idle interaction and tuning them up initially is a PITA.

However once you have them set up well, you can practically forget about any re-adjustments.


On a couple of ST's I've had to file out a small half moon ( I posted this on another thread with full explanations ) to help the low end idle.

Richen the low end needle due to the slightly increased amount of air intake at idle, which makes the mid range transitions rock solid.

Others have not needed this fix... so it all may be due to poor intake sizing.