For the conversion of motorcycle into bezakkumulyatornyh I purchased: alternator 43.3701 (from motorcycles “Minsk” or “Sunrise”), two thyristor switch, CAT-1, the unit BKS-261.3764, inductive sensor and lamp and a sound signal of 12 V. you Can also make a 12 volt generator two generators Г427 from the old models of motorcycles: one to use as a base along with a section of the lighting (she wound a thick wire), and from another — only section of lighting. For this first generator need to remove three sections, wound with thinner wire (without touching the coil plug which is covered with a metal plate), and put instead of them the lighting coil removed from another generator. Then the two sections be connected in series. If the subsequent verification of the generator on the bike will determine that the voltage generated by the generator is not increased, but decreased, you need to reverse the connection of one of the sections on the opposite.
Steel any brand you need to carve the transition flange, install it into the counterbore of crankcase and attach with screws М6хЗО mm. When marking the holes on the flange as a template to use the generator stator. To put the rotor on the trunnion of the crankshaft, you should use the drill appropriate diameter and needle file to make a new recess for the dowel (pin). I do not recommend to do the recess for the pin at another point, as in this case violated the optimal location of the generator inside the case. Since the new generator small size, right crankcase cover requires almost no alteration. It is only necessary to remove part of the septum, as shown, and attach an additional partition made of aluminium with a thickness of 5-6 mm (sizes to clarify the place). The crankcase is also required to paste a partition, a hermetic compartment of the generator. It is best to use epoxy glue to add the small aluminum filings.
Now you can do by the generator. The most time-consuming operation — fixing on it the inductive sensor to the second cylinder. Note on the accuracy of this operation depends on the coincidence of the ignition timing in the right and left cylinders. Space for mounting the second sensor on the generator is not provided, so we’ll have to rearrange the terminals of the windings on some other places. For the first marking position generator must be installed on the engine. Using the indicator to find top dead center (TDC) of one of the pistons and to Orient the generator so that the slot magnet on the rotor was exactly against the ledge of the sensor core, and then the screws on the alternator to tighten. Next, inspect the crankshaft to find TDC for the other piston. Attaching the sensor to the generator, it is possible to note its location. Unfortunately, the points of attachment of the sensor detected the existing holes from the terminal screws, so the inside of the generator have to priklopiti two small steel plates 3 mm thick where to drill holes and cut thread M4 for fastening screws of the sensor. Since the holes are drilled on the place, we must try not to damage the drill bit, the coil of ignition.