990 carb

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Having a choke is more convenient, allows me to start the engine in 5 seconds, 2 pulls, one choke on, second choke off, all the time, which is something Im yet to see with any non-choked carb…
And yes, the 990 works and is an upgrade over the 668 carbs. Although if your engine comes with an 1107/1191 the performance level is on par, so not really an upgrade (unless your carb broke)
 
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