It's a 668 with a different metering system, supposed to give it better mid range fuel metering. Smaller bore then an 1107
Unless they started using 1107? walbros sight lists the 1191 as the carb for 36cc and up, it specs nearly identical to an 1107. The 1107 is listed as a husqvarna/zenoah carb. There has to be some difference for them to make 2 carbs, with 2 different model numbers. I would also go out on a limb, that either, or are genuine walbro carbs.
Doesn't really matter any more to me. That engine isn't in the baja anymore anyways .
