DEREEL Posted January 28, 2013 Report Share Posted January 28, 2013 Rebuilt my stock carbs this weekend. I have 340 main jets in them. I remember seeing a white plastic insert over the main jet years ago. Just wondering if its necessary to have those inserts in the carb or can you run without them? Quote Link to comment Share on other sites More sharing options...
Paul M Posted January 28, 2013 Report Share Posted January 28, 2013 oh man your fooked ! it will be fine with out it, Quote Link to comment Share on other sites More sharing options...
ric-ross1 Posted January 28, 2013 Report Share Posted January 28, 2013 Mine never had them and it runs fine. Quote Link to comment Share on other sites More sharing options...
Jereme6655 Posted January 29, 2013 Report Share Posted January 29, 2013 they run without those in place.....if I remember correctly I believe it was an anti splash or anti foaming device.... Quote Link to comment Share on other sites More sharing options...
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