I can't get my Saxonette running right! I'm pretty sure it's a carb problem.
The carb is a Bing 1/12/1670. I have a repro manual for the Sachs, but nothing for the bing specifically. The Sachs manual isn't very detailed with carb info.
The piston and bore are clean. The exhaust is new and unobstructed. New gaskets were installed on the base, intake, and reed block. I have a good spark. Timing was unchanged. In fact the engine has not been restored and looked almost new.
Problem:
I have no idea how this type of carb works. Not like the kart carbs I'm used to.
It will start only at full throttle. The engine responds nicely to throttle control, but only for a 5 seconds. I swear bubbles are coming up the fuel line! Then it dies and is hard to start again.
I have disassembled the carb and cleaned out the jets and passages with solvent and air. Nothing looks bent or strange. I'm pretty sure it ran before the restoration.
I have also tried starting with a NOS carb and the same thing happens.
Is there a basic setup I'm missing when starting fresh? What is with the black button next to the fuel inlet? Any suggestions would help.
The carb is a Bing 1/12/1670. I have a repro manual for the Sachs, but nothing for the bing specifically. The Sachs manual isn't very detailed with carb info.
The piston and bore are clean. The exhaust is new and unobstructed. New gaskets were installed on the base, intake, and reed block. I have a good spark. Timing was unchanged. In fact the engine has not been restored and looked almost new.
Problem:
I have no idea how this type of carb works. Not like the kart carbs I'm used to.
It will start only at full throttle. The engine responds nicely to throttle control, but only for a 5 seconds. I swear bubbles are coming up the fuel line! Then it dies and is hard to start again.
I have disassembled the carb and cleaned out the jets and passages with solvent and air. Nothing looks bent or strange. I'm pretty sure it ran before the restoration.
I have also tried starting with a NOS carb and the same thing happens.
Is there a basic setup I'm missing when starting fresh? What is with the black button next to the fuel inlet? Any suggestions would help.