Hi, iv been running about all day now with the overflow line at the bottom of my carb caped, As well as the vacuum line it normaly connects to caped.
Runs fine! I don't really think you need the overflow line unless you are actualy racing, and then it should go right down to drain overflow from the carb out of the carb, to prevent flooding, keeping the fuel/air mix ideal (well, as tuned anyway), Racers don't care about a little lost fuel if its lowering proformance.
For our usage, We want to save that gas, Throwing it back into the intake isent saving it, its flooding the engine/soaking the intake and making the mixture rich. So I think its better to just cap it. My carb did'nt flood to the point of proformance loss on any of the steep hills I road, Even ended up waiting 20 seconds at a light on a 30 degree hill.
And I think for just crusing, if it did flood, you'd want to just adjust the float insted.
So, the only uncaped line on my carb is the one float bowl vent. Works great for me.
Runs fine! I don't really think you need the overflow line unless you are actualy racing, and then it should go right down to drain overflow from the carb out of the carb, to prevent flooding, keeping the fuel/air mix ideal (well, as tuned anyway), Racers don't care about a little lost fuel if its lowering proformance.
For our usage, We want to save that gas, Throwing it back into the intake isent saving it, its flooding the engine/soaking the intake and making the mixture rich. So I think its better to just cap it. My carb did'nt flood to the point of proformance loss on any of the steep hills I road, Even ended up waiting 20 seconds at a light on a 30 degree hill.
And I think for just crusing, if it did flood, you'd want to just adjust the float insted.
So, the only uncaped line on my carb is the one float bowl vent. Works great for me.
... And another is the vent for the bowl.
