I've been battling these DA50's for 6 mths. Between the rod and crank replacements and the new pulse line mod. it's driving me crazy. I know how to adjust carbs, and I've been chasing the needles on these continuously. Get it set just right, then the next day it's either rich in midrange or lean and won't start. [:@] We finally crank my buddies DA50 for the first time today, and it's a different animal than mine. We set his needles like mine, and it was so rich, top end was only 5500. That really got me thinking. My high needle has been at 2 1/2 turns. It sounds pretty well peaked out in the air, but not sagging on long full throttle up lines. I opened my HS needle to 4 turns, and no difference. It's peaked out at 1 1/2 turns out or 4 turns. I CAN NOT get it rich. You should be able to peak one at say 7,000 and drop it to 6500 with the HS needle, I can't. Got two to the DA50's and they are both the same.

I pulled the needles to see it they were in backwards and they were not. Physically can't do it, different thread size. Blew the ports out, screen is clean, even pulled the line off the fuel tank and stuck it in my gallon jug, no difference..........

Can I go in and bend the lever arm in the carb to allow more fuel through?????

I'll be calling DA in the morning to see what they say. I got a hunch I'm not the only one out there with carbs like this, and this may explain the rod bearing problem.......running to lean......

TIA