First of all, welcome to the T family. When you get the chance, tell us more about yourself.

According to the manual, you should check the synchronization of the carbs 1st, then turn the pilot screws in until lightly seated, and then turn each pilot screw out by 3.25 to 3.5 turns each. Re-check the synchronization again.

The backfiring and sputtering sounds more like a synchronization issue.

Stan

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Current love; 2004 GL1800 CSC Cobra trike (silver/white).
Past love; 1999 Ace Tourer (Silver over Black)

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Edited 1 time by bamaTrider Nov 29 08 12:57 AM.