![]() ![]() It won't have to be done again if you need a new coil and if the bike runs great after adjustment you may not need one. I suggest setting the dwell (points gap) and timing before going much further. (advance degrees references to TDC, not the already advanced T mark) Using a dial-back timing light you have to line up the T mark, not the F mark. If there are more thorough tests I can perform or I did something wrong, please let me know. ![]() Perhaps some of you regs with your infinite wisdom can take a look at my data and tell me just how seriously out of whack my timing and electrical system is. After performing these continuity tests I think this more or less confirmed. With the simple light test with the timing light, I was suspecting that the 1.4 coil was on it's way out. What I found interesting was that where the soldering points were, the wax was built up and extended about 1/4" off the coil on both ends respectively. Upon close inspection of the 1.4 coil it became apearent to me that there was some kind of waxy residue on it, as if someone had melted a candle on it. 2.3 coil lead A to power source = 0 OhmsĬoil Voltage at input was 10.8V with battery reading 12.1V (bike system power turned off). I checked these things in this order (please refer to diagram):ġ) Continuity between both small wires relative to the center conducter feeding the coils juice.Ģ) Continuity between both plug wires relative to their coils (with out the spark plug caps).ģ) Continuity between any small wire to the spark plug wires relative to their coils.Ĥ) Continuity between both small wires per coil (Should read 5 Ohms +/- 1 Ohm).ġ) 1.4 coil lead A to power source = 5.87 Ohms Tests were performed with the power to the bike turned off. I used a Fluke Digital Mulitimeter 189 for these tests. Before checking, I researched this site and found that by using the 8cyl scale, the dwell should read between 23 and 24.5.Īfter checking the dwell, I pulled the tank and checked the spark plug wires and coils looking for continuity and no continuity respectively. The dwell meter is an Actron Meter #CD7605 and I took my readings off of the 8cyl scale. I was curious to see how close the last owner got too with using feeler gauges. I was still getting spuratic light pulses with the new timing light with it hooked up to both #1 and #4 spark plug wires. How did I come to these numbers? I used the advance dial on the back of the timing light and slowly adjusted the light pulse until the F marks lined up with the static line on the 333 plate. #4 = 11.5 degrees - fluctuating 2-3 degrees ![]() #1 = 16.5 degrees - fluctuating 2-3 degrees Tappet Clearance: I have not checked it since my ownership = eight months Spark Plugs: D8EA gapped too 0.8mm - Four days old Using a Craftsman Professional Advanced Inductive Timing Light #21023 I checked the timing marks 1.4 and 2.3. Upon getting home, I pulled the timing cover and started logging data. Sitting next to the timing lights were Dwell meters, so I purchased both and rode home. Today, I rode the bike to Sears (about 40 miles round trip) to pick up a new timing light so I could get a better idea of what was going on. This pause would coenside with a slight hestiation that I could hear as the bike would idle. As in the light would have even flashes then a random subtle pause. ![]() However, I did notice that when I had the timing light on spark plug wires 1 or 4, I would get an uneven flash. Unable to get a reading that I was comfortable with because of the spinning knob, I really didn't know what my ignition was doing. Last Saturday, I didn't have my own timing light so I borrowed a neighbors which had an advanced ignition knob on it that was broken and spun freely. Once to check the condition of the internals, give them a cleaning and the second time to bench sync the carbs using Too Tired's light method, which works quite well BTW. Since I've owned the bike, I really haven't done anything to the ignition system or carbs. Last Saturday, I thought I'd pull the timing cover off the 400 Four and see how the timing was. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |