Needle jets are not interchangeable between models of amal carbs. The feed from the float chamber to the main jet can be seen, the latter jet limiting the total amount of fuel that can pass under full throttle opening and full suction. The carburetor proportions and atomizes the correct amount of petrol with the air that is drawn in. Amal carburettors, spares and associated products aimed at anyone with a classic motorcycle. To access slide needle, unscrew top cap of carburettor and withdraw entire.
We are the worlds sole manufacturer of genuine amal carburettors and spares. Youll also want a gallon bucket of carburetor cleaner with a parts. And the main carburetor which takes you from very low throttle openings right up through wide open throttle wot. All genuine amal parts are now individually packaged and sealed for easier identification and are carry a 12 month warranty from the date of purchase. Amal carburettor needle information type 4 type 5 5 grooves 2 58 type 6 type 7 type 8 type 9 type 26 type 27 type 28 type 89 29 5 grooves 3 316. The idle carburetor handles starting, idle and very low throttle opening. With amal, and most mikuni carburetors, you are dealing with. Concentric carburetter tuning hints and tips scanned booklet originally supplied with amal concentric carbs dear customer. We stock amal monobloc, concentric mki and mkii carbs and a full line of parts. It is made up of the pilot jet equivalent to the main jet in the main carb. Carburetters without internal main emulsion air are 76 and 89 series 0.
Notes on rebuilding the amal mark 1 concentric carburetor. Simply follow the simple step by step instructions and use the wheel following steps 1 4 checking the reverse for the corrective action needed. Although whenever possible, we supply carburetters that are set up to original specifications, variations in supply or in the requirements of a particular engine may cause the settings to be incorrect. Having installed the engine as per our instruction manual, we would suggest you. The amal tuning guide has been designed to explain and simplify the procedures needed to tune your amal carburetter. Pre monobloc carburetter type numbers 276 and 289 are followed by a designation to identify its application.
The carburetter proportions and atomises the right amount of petrol with the air. Inside the genuine amal premier concentric carburetor. Designed for 4stroke motorcycles, comes fitted with a 3. Completely dismantle them to last screw and soak in carb cleaner. Amal 37531 monobloc 78 inch carburettor bsa bantam d5, d7 175cc and other models suitable for bsa bantam d5 175cc 1958, bsa d7. Use stiff bristle brush, bottle cleaners, probes etc. If your bike is fitted with one or more amal carburettors and has seen a lot of mileage on the street, trail or dirt youll find that refitting with an allnew amal carburetion system will bring that sharp new machine performance you first experienced your first time out of your dealers showroom. Amal concentric carburetor overhaul mc howto motorcycle. Old britts amal concentrics, how they work and tuning. Amal 37540 monobloc 78 inch carburettor bsa bantam d7. Concentric carburetter tuning hints and tips british cycle supply. The factory metal works custom vintage triumph motorcycle brake clutch lever adjuster duration.