Gas/Oil Mix in carb box

ankdworak · Post by **ankdworak** » Thu Mar 27, 2014 3:21 pm

I know this has probably been covered on this forum on multiple occasions, but I have oily black residue coating the engine side of my 2008 2T Stella. When I open the carb box there is gas/oil mix in the bottom/back of the carb. From there it leaks out of the back bolt (which I believe is the mixture screw) and ends up all over the engine area. It picks up dirt and debree from the road and just plain looks nasty. I have a carb gasket kit, new float, and new needle that I ordered to rebuild the carb. I thought I remember reading somewhere on this or MV that a bad needle (or perhaps float bowl) can lead to fuel escaping the carb system. I may be off on that. But I was wondering if anyone can point me to a thread and/or video that will show the intricacies and steps of disassembling and rebuilding the carb, as well as reassembly and tuning. Or also, if my uneducated assessment seems way off to you, please feel free to correct me. Any help would be much appreciated.

climbamt · Post by **climbamt** » Fri Mar 28, 2014 12:26 am

I am about to rebuild mine. I watched this video and it looks pretty manageable.

https://www.youtube.com/watch?v=wZ7eaFzQPSs

There are 5 parts.

Cheers,

~climbamt

Tipper · Post by **Tipper** » Fri Mar 28, 2014 10:31 pm

Sounds like 'spit back' to me,small amounts of unburnt mixture is being spat back out of the carb and pooling in the carb box.

It's nothing to worry about.

Rev_83 · Post by **Rev_83** » Sat Mar 29, 2014 7:11 am

I had the same problem. It typically is caused by blow back from the cylinder. I would check your reed.