Single carb dilema

[elwilliams13]

Hello everyone. Got a little situation. Got a cascade intake that is like the trinity design, 35mm PWK EEJ needle, 195 main, 48 pilot. I live at sea level 80 to 95 degrees. recreational port, fatty pipes, 19cc coolhead, 185 comp. run VP Red for fuel. The problem is at idle. I set my float to 11mm on the float seam opposite of the needle and seat, At idle it is running rich as hell I got the idle set screw turned in all the way and still need to crack the throttle to keep it going. plugs are all wet and black, smoke pours out of the pipes. I also found that the choke plunger lets carb cleaner and air through when I sprayed it even when shut. Think that may be it, air screw out 1.5 turns. also when I got the carb it had the main and pilot casting that is held with the 2 screws inside the carb removed. although it says not to tear it down past that point, it was and I checked the oring and it looked good so I put it back together. Other than that it runs good mid and top end. Any other suggestions?

Edited April 8, 2008 by elwilliams13

[Snopczynski]

Hello everyone. Got a little situation. Got a cascade intake that is like the trinity design, 35mm PWK EEJ needle, 195 main, 48 pilot. I live at sea level 80 to 95 degrees. recreational port, fatty pipes, 19cc coolhead, 185 comp. run VP Red for fuel. The problem is at idle. I set my float to 11mm on the float seam opposite of the needle and seat, At idle it is running rich as hell I got the idle set screw turned in all the way and still need to crack the throttle to keep it going. plugs are all wet and black, smoke pours out of the pipes. I also found that the choke plunger lets carb cleaner and air through when I sprayed it even when shut. Think that may be it, air screw out 1.5 turns. also when I got the carb it had the main and pilot casting that is held with the 2 screws inside the carb removed. although it says not to tear it down past that point, it was and I checked the oring and it looked good so I put it back together. Other than that it runs good mid and top end. Any other suggestions?

 

The more you turn the screw out, the leaner it will make the a/f mixture for idle. You can also try a 45 or 42 pilot jet. You need to make sure your choke circuit is working properly.

[elwilliams13]

Yeah I ordered a new choke plunger because mine lets air through it when I sprayed it with carb cleaner, took it out and the rubber disk at the tip of the piston was hard and had the imprint of the orifice on it. I think it is letting fuel through at idle because when I sprayed it from the filter side alot of fluid came out the other end. there is alot of residual fuel in the carb throat and the intake when I remove it. I will put on the replacement parts and get back to you guys.