Hey guys...I have a ground-up project I'm finally getting running and am struggling to get it running right. I'm 90% sure it's a carb issue. I fully rebuild the engine (split the cases) so I feel confident in the valve train. It has good compression for what that is worth. B38 carbs, and the symptoms are these:
Thanks in advance!
- will only run on choke; as soon as I turn choke off it dies, even after having been warmed up
- lots of popping out of the left carb; if I look down into the carb from the back I can see it firing/popping (pre-ignition?)
- even on choke, if I crack the throttle even a little it will die; won't take any throttle whatsoever
- uneven idle when it runs on choke...rpm wanders up and down
- sprayed starter fluid around the boots and there is no change in the rpm; so I don't think there is any vacuum leak
- as I said, fresh engine rebuild, so I'm confident the valves are set correctly
- cleaned the carbs...twice; if its dirty carbs or carb passages, then I've done all I can
- adjusted air/idle screws and no change
- standard/stock jet sizes, I realize I probably need bigger jets due to running pods, but would it be this bad? (unable to run on anything but choke)
Thanks in advance!
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