Скачать с ютуб Yamaha Star 650 Carburetor Test & Adjustments - Floats, TPS, Heaters, Solenoids, PMS, Leaks Part 2 в хорошем качестве

Yamaha Star 650 Carburetor Test & Adjustments - Floats, TPS, Heaters, Solenoids, PMS, Leaks Part 2

We continue with the second video in this two part series. Here we will look at the carbs as if all sorts of problems were found so each issue can be addressed. The first step being to drain out the whole system through the bowls back into a gas can so that the fuel line can be detached and the bowl cover removed. The first step will be the replacement of the float needle and seat from the carb with the ones from the kit. My kit required swapping the screen from the old one after cleaning to the new seat before installing. I further take this opportunity to demonstrate float level height adjustment before reintroducing the float into the carb. I then assume that the bowl cover seal is also bad, though it probably isn't far off from bad anyway, and demonstrate replacing that as well before closing up the float cover. This would be the time to do float measurements and leak rechecks. Having moved past the floats I move onto the heaters and their resistance testing, though noting that the readings off of the cable can be deceiving as two are in parallel, so its best to check each one for about 8 ohms, and then continuity through the harness. The solenoids should be about 12 ohms. When they break, put a 12 ohm resistor off the cable connection to ground and forget about them. TPS is just a spring loaded pot. The first measurement across is the total resistance, the next measurement tests the sweep. It will never start at 0 ohms installed in the bike. So long as its between 650 and 750 ohms in the closed position its ok. A requirement for a deep ultrasonic cleaning allows for a demonstration of TPS removal as well as the drilling out of the PMS needle plug. An account is made of the turns of the PMS needle to full seat and recorded. The carb is submerged in solution to about 60degC simple green and distilled water until it comes to temperature and then two sessions of twenty minutes with the oscillation. After this the carb is cleaned in distilled water, blown out with compressed air and reassembled. The PMS needle is screwed in to full seat and then dialed out to the appropriate turns. This is followed by the TPS which is installed and then calibrated to 700ohms at closed plates with the meter as shown in the video. Having completed all tasks, the other pieces for idle are re-added to the carb. Also the wire looms are added for the cables. This carb is now tested and ready for installation into the bike.