davecmu 
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« on: August 12, 2010, 09:00:18 AM » |
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I will update my other thread: http://nighthawk-forums.com/index.php/topic,6303.0.html in a second, but I have another question to ask. Now that I'm running on both cylinders, I've had the occasion to put it into 6th gear. Each time I've done so, regardless of speed (did it at 45mph the first time and have been able to repeat at 25mph and at a stop), the oil light comes on. Scared me to death the first time, but after some experimentation last night, I've determined it happens any time I engage 6th gear. Running Rotella T 15w40 and is properly filled. Excuse my ignorance, in case this is normal, as I don't have an owner's manual (just a Clymer's on PDF), so I don't know if it's supposed to do that. I know on some of the bigger bikes, there is an overdrive indicator light. On mine, there are only the Oil, High Beam, Neutral, and turn signal lights. Any thoughts? |
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detdrbuzzard
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« Reply #1 on: August 12, 2010, 09:37:15 AM » |
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the oil light should not come on in any gear unless the engine is idling soo low its about to stall
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ariwhiteboy
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« Reply #2 on: August 12, 2010, 09:40:46 AM » |
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Maybe your oil level is low and the low RPMs in 6th gear is causing low oil pressure?  |
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What is good Phaedrus, what is not good? Need we ask anyone this?
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jerjohn
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« Reply #3 on: August 12, 2010, 06:11:51 PM » |
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you do have an overdrive indicator light. Its blue and in the center between the turn signal indicators. Sounds like a previous owner may have messed with the harness and switched the connections. Get a clymers and check.
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Munkey
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« Reply #4 on: August 12, 2010, 06:35:41 PM » |
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Sounds like a previous owner may have messed with the harness and switched the connections. Get a clymers and check.
That's easy enough to test. Does the blue light come on when the key is turned on but the engine is not running? |
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davecmu
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« Reply #5 on: August 12, 2010, 08:47:53 PM » |
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you do have an overdrive indicator light. Its blue and in the center between the turn signal indicators. Sounds like a previous owner may have messed with the harness and switched the connections. Get a clymers and check.
JerJohn, you're right. I never noticed because the OD etching is totally faded, but there certainly is a light there. It doesn't light up at any time (ignition on, bike off), so I believe you might be right about the crossed up wiring. Guess that means I also don't have a functioning oil light, so that makes this a "fix before drive" kind of deal for me. Whoever owned this bike before me obviously didn't love it, as just about every mixed up thing has been wrong with it. Let's not tell my wife, agreed? She still thinks $500 was expensive enough, so I'm not about to tell her I need to trace down an electrical misconnection.  |
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jerjohn
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« Reply #6 on: August 13, 2010, 04:55:58 AM » |
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I could be wrong about the wiring...my o.d. light works but it does not come on when I first turn the iginition key. Is your oil light lighting up when you turn on the ignition key? I believe the neutral light(if in neutral) the oil light, and the high beam light(if selected) should turn on with the key...
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detdrbuzzard
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« Reply #7 on: August 13, 2010, 06:17:05 AM » |
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you do have an overdrive indicator light. Its blue and in the center between the turn signal indicators. Sounds like a previous owner may have messed with the harness and switched the connections. Get a clymers and check.
no the blue light is for high beam, there is no OD indicate light on a 450sc |
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'75CB750k, '79CB750 super K,
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« Reply #8 on: August 13, 2010, 08:00:47 AM » |
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no the blue light is for high beam, there is no OD indicate light on a 450sc
You sure about that? Check the top left.  (Click for full size) |
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It's not what it is, it's what it does.
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detdrbuzzard
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« Reply #9 on: August 13, 2010, 08:26:06 AM » |
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i have an '85 cb450sc, there is no od light
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'75CB750k, '79CB750 super K,
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« Reply #10 on: August 13, 2010, 08:46:50 AM » |
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The Clymer's wiring diagram lists one for your bike. What colors are the wires coming from your neutral switch?
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ariwhiteboy
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« Reply #11 on: August 13, 2010, 09:26:27 AM » |
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Maybe the 82 had one and the 85 didn't? |
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detdrbuzzard
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« Reply #12 on: August 13, 2010, 09:47:22 AM » |
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keep lookin then
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'75CB750k, '79CB750 super K,
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'79cb750f, '8
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« Reply #13 on: August 13, 2010, 10:17:34 AM » |
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Maybe the 82 had one and the 85 didn't? Clymer's manual has it listed for both years. But I trust a Clymer's manual to be accurate about as much as I trust a used car salesman to be honest. |
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ariwhiteboy
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« Reply #14 on: August 13, 2010, 10:43:10 AM » |
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Maybe the 82 had one and the 85 didn't? Clymer's manual has it listed for both years. But I trust a Clymer's manual to be accurate about as much as I trust a used car salesman to be honest.  Truer words were never spoken! |
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Lurfadur
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« Reply #15 on: August 13, 2010, 04:31:04 PM » |
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My 1983 has an OD light, but I honestly can't remember if I've ever seen it lit up  Hard to see but it's directly above the ignition and in between the turn signals. Going for a ride tomorrow and I'll make sure to get it in 6th to see if it lights up. |
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jerjohn
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« Reply #16 on: August 13, 2010, 05:34:55 PM » |
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Mine works intermittently but it does come on occasionaly. Is it possible that the neutral/od switch works only at certain speeds? I know that sounds crazy but I have seen mine work. Or maybe we are all driveing around with bad Bulbs! |
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jerjohn
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« Reply #17 on: August 13, 2010, 06:18:43 PM » |
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With all this speculation I decided to check and ya know with out pics it didnt happen so here ya go, the elusive OD light!
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ariwhiteboy
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« Reply #18 on: August 14, 2010, 12:31:34 AM » |
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Interesting...now what's that little toggle by the key for?  |
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jerjohn
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« Reply #19 on: August 14, 2010, 02:28:53 AM » |
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Its for my L.E.Ds  |
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ariwhiteboy
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« Reply #20 on: August 14, 2010, 07:30:47 AM » |
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Very well then, John. Looks like a very clean mount job too. |
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