Hello Revo7617, let me start off by saying thank you for picking up our engines. I've read through your comments and unfortunately I do not think that I'm understanding you properly. Can you please clarify what you mean when you say that it came with a carb adjuster with the o-ring broke? What exactly is a carb adjuster? We're you referring to the needle and if so as the o-rings around the needles can not be seen unless the needles are actually completely removed from the carburetor did you notice that an o-ring was broken after you took the carb apart?

Then you mentioned a second issue with the carb sitting flush and something about the second case not having any tolerance for the carb. There are no special tolerances made to the case for the 2010 carb, the cases are all machined exactly the same so I'm not sure that I understand what you are talking about here. You went on to say that you removed the insulation material from the bottom of the carb to make it fit right. On the carbs the insulation material is machined flush with the end of the alloy carb neck (as in it does not extend past the bottom of the alloy carb neck) so they both have exactly the same length so trimming this will have no affect in how far you can extend the carb into the body. There is an o-ring that sits in the case about 4-5mm from the bottom of the opening in the case that the carb neck fits into, this is what seals the carb/case when they are joined. Is it possible that you simply did not push hard enough to seat the o-ring so that the carb neck slides past it lol? Please let me know...

Regards,

Ron