Leaderboard

No Ps, those are for welding tips and they are like tiny files. Don't use those. If jets are dirty it's nearly always a lump of dirt or bit of fluff and you can see it if you hold the jet to the light. Most things can be blown out easily. Sometimes the jets get a build up of verdigris which doesn't blow out, and people use chemicals, but I just use any small bit of hardwood whittled down to a fine point to ream then out, and then give them a blow through and reinspect against the light. It's important to take out the emulsion tube, which is the brass tube the slide needle drops into. A few taps from the top with the handle of a small screwdriver and it comes out the bottom. It has several tiny holes halfway up the tube that need a good blow out because they are too small even for a whittled down bit of wood. Don't try cleaning them with a pin, a single wire from a wire brush some times fits nicely but they mustn't be enlarged or distorted.. or blocked with a tiny point of whittled down wood !! The holes in the tube are arranged on opposite sides of the tube, so you can look right through if you are very careful, and you will see light if they are all clear. The drilling in the carb body that the emulsion tube fits into, is a precise diameter and volume and needs to be cleaned out of it has a build up of chalky or gummy crud.. Apart from the fuel jets there are air jets near the air-cleaner end and some of those can not be removed, and even the ones that can be removed don't really need to be taken out. They are so big you can see and blow straight through them. Blow every passage you can in the carb body, in the opposite direction to normal fuel or air flow, as much as possible. Blow a little one way to see where it comes out before blasting it through from the other way. The idle discharge holes are the smallest passages in the carb body.. Try not to force any fluff or dirt up towards them by blowing from below. It's awkward, but best to open the butterfly or take the slide out, and blow down through the idle discharge holes as best you can, before blowing back the other way from below. If you have compressed air it's a good thing to make a long tipped air nozzle out of four mill steel brake pipe. It's handy for getting down the hole where the slide drops in, and blowing the drillings there or under the butterfly.