I have this exact issue - wondering if the OP was able to find a fix?
Sounded like he was missing the diaphragm needle seat on his carb...kind of hard to see in his vid, it does kind of look like its not there...I have this exact issue - wondering if the OP was able to find a fix?
Thanks for the reply! The previous owner replace the carb. I opened it up and checked it over (all good) and then tested it - same thing. The only thing I noticed was that the main jet was a 43 and according to the manual it should be 33.5 main jet. Tired of screwing with it I ordered a complete new carb. I took the float bowl off of it before installing and the new main jet is smaller but not numbered... I installed the new carb and tested it - better but not great. I don't know what jet is in the new carb tho? I've ordered a new dynojet kit for it so I can be sure it has the proper jet and setup. Hopefully I get it soon.and this solves my issues but its been a real pain in the butt...Sounded like he was missing the diaphragm needle seat on his carb...kind of hard to see in his vid, it does kind of look like its not there...
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This is my spare carb you can clearly see its there...
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Thats not a normal thing that happens but it does happen.
Id recommend watching conleys carb vids, give it a good cleaning -especially- the screen under the float needle.
Another common thing with flooding like that is the float level adjustment and theres another smaller diaphragm other than the main one thatll do it.
First thing I would try is pull the bowl off the bottom, remove the float and float needle and clean the screen. Then make sure the float is adjusted properly.
Those two dont work you'll have to diagnose deeper.
Best of luck
I installed the Dynojet kit and re-installed the carb and it was the same Issue... Re-installed the air filter housing just for the heck of it and it's running good now? lol - not sure what caused that...Yeah carb issues can be a pain.
Good move on the dynojet kit, highly recommend it.
I ended up moving the diaphragm clip to position #4 with a 128 main and a 32.5 pilot and 80 secondary. The fuel screw ended up just between 2 1/2 and 2 3/4 turns out if that helps
My cheap chinese amazon spare carb has unmarked jets. It runs ok with that on but if the po replaced yours with another bsr 33-49 carb its worth rebuilding and keeping.
They are extremely hard to find. Made for the 400 👍
It should be stamped on the housing...
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