If you want something cheap you can use a compressor with a regulator to adjust the high pressure to low pressure.
Blood pressure bulb may work as a pump for low pressure, you can use a syringe for a vacuum pump ,there are a few how to youtube clips on making them.
I usually just use BP ultimate fuel to clean a carby out but the main jet must be cleared out first otherwise the motor won't run ,just have to use fuse wire up the main jet to clear it.
