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Post by skunkhome on Jul 25, 2014 5:43:13 GMT -6
I went out to find my new battery dead yesterday. After charging it back up from 6.4 volts I decided to run a test to see how much drain I had on the battery sitting with the ignition off. The manual says zero but I know the clock in the electronic dash draws something along with other functions preserving memory. I found that the bike had a parasitic draw of 50mA. Is that excessive?
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Post by skunkhome on Jul 23, 2014 20:03:14 GMT -6
I still have not had the opportunity to trace out my wiring as I have been going from can to can't everyday. I went out this evening and found my new battery "flat" after being hooked up for 10-12 days. I disconnected the negative side and hooked it up for charge. It read something like 6 volts. I let it charge at 1.5A for about 1.5 hr and it is up to about 12.4 with charger off. I tested off the negative pole to negative lead and I have a draw of 50mA DC with the ignition off and the rectifier unplugged. I realize that there is some parasitic draw by the clock but does that figure sound excessive?
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Post by skunkhome on Jul 15, 2014 17:57:11 GMT -6
Ok guys, thanks for the help. Please bear with me as I will get on this again as soon as possible. I have to admit, Bashan, that the photo of the wiring harness is intimidating.
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Post by skunkhome on Jul 14, 2014 16:41:45 GMT -6
Thanks for the info. Sorry I woke you with this foolishness. I oft wake up thinking about projects. I've been thinking about this all day but am swamped with work so sorting through this may take some time. I already took off the plastic from around the key switch but have not touched the tunnel. My little shed is cramped with the new scooter and all my other stuff but daily thunderbumpers are keeping me from taking it outside.
As I see it right now the 4p connected with the three wires.
Black wire is hot with ignition on. Green is ground. Yellow that occupies the same position as your R:/w should be hot all the time but is never hot on my bike. If it is fused as it should it may have a blown fuse from PO 's tinkering.
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Post by skunkhome on Jul 13, 2014 23:08:40 GMT -6
I am pretty certain the PO bought the wrong rectifier. I figure the alternator is putting out as the headlight burns when hooked up. We will get it sorted out somehow.
Thanks again you guys.
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Post by skunkhome on Jul 13, 2014 21:43:29 GMT -6
I do know the the engine does start and run with the 4p connector separated. The instrument panel and all seems to work but the headlight does not burn. Plug it back in and the headlight burns. I haven't a clue where the CDI is. I have searched all over but don't see. I truly appreciate all the help but don't feel pressured to get me answers in a hurry. I'm going to keep tinkering. I may call the PO and ask him if he has the original rectifier that supposedly Cooke the old battery.
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Post by skunkhome on Jul 13, 2014 21:25:47 GMT -6
Bear with me a bit more.....so yellow on the ignition switch side, switch off.....voltage? 12v DC? By the way, search CF 250 items because it's a CF Moto clone of the Honda Helix engine which is CN 250. No voltage on yellow in 4p connector with or without switch on. |
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Post by skunkhome on Jul 13, 2014 21:22:33 GMT -6
Believe it or not this is the wiring diagram on the back page of the owners manual that was in the trunk of the scooter. It bears no resemblance to what I see on the bike.  . It is horrid to read but looks far better after copying and cleaning up. |
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Post by skunkhome on Jul 13, 2014 20:55:03 GMT -6
I don't have a diode.
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Post by skunkhome on Jul 13, 2014 20:48:26 GMT -6
I left eft the ignition off and checked ohms across each of the points on the lead from the wiring harness. From ground to yellow is 50 ohms, ground to green is 2 ohms and ground to black is 10 ohms. Black to yellow is 43ohms, black to green 8 ohms and green to yellow is 43 ohms. None carry voltage unless ignition is on. That just does not look like the diagram.
it is infinity on the rectifier side.
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Post by skunkhome on Jul 13, 2014 19:40:44 GMT -6
The ignition side connector is black, green and yellow instead of black, green and red white. The readings work out fine if you substitute yellow for R/W. The issue I see is that the rectifier is a 5 wire rectifier where apparently it should be 6 wire.
the three yellow Leads in the p3 connector lead from the stator to the rectifier.... The red and green wire lead from the rectifier to the p4 connector to the wiring harness going to the battery and ignition switch. It appears I am missing a black wire running from the p4 connector to the rectifier. When I do a search for cn250 rectifiers I find both 6 and 5 wire units.
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Post by skunkhome on Jul 13, 2014 19:11:41 GMT -6
I found a few Honda Helix rectifiers on eBay and all the ones I have seen Have three leads Red, green and black in the p4 connector.  |
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Post by skunkhome on Jul 13, 2014 17:49:07 GMT -6
Still trying to sort out my electrical issues. I finally put a quality ohmmeter on the three yellow leads going to the stator and got readings across each lead at 0.80 Ohm. That falls within the specified range of .1 to 1. Ohms. I also started and tested it for voltage and it put out 15-20 volts at idle and just above. Couldn't check it at 5k because the center stand is screwed up. I appear to be getting in excess of 15v at idle at battery. The PO stated that he replaced the rectifier so I am now concerned that it might be wrong. This is a diagram of the harness shown in the honda helix manual:   and this is what I have on the scooter: This is ignition side:  It reads 12v across the green and black and yellow and black with ignition on. Black is the positive this is the rectifier side:  and as you can note there are only two leads the positive lead ends in the ignition side if the p4 connector. Now I'm puzzled. Can anyone clarify this for me. |
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Post by skunkhome on Jul 6, 2014 11:34:41 GMT -6
Oh access is no issue. I installed a slave cable the first day i got the bike and the battery has a built in voltmeter.
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Post by skunkhome on Jul 5, 2014 23:13:32 GMT -6
I intend to check the charging just got sidetracked by the battery holding its charge and wanted to get it settled that is is or isn't good since it is brand new and I really have not had the time to run the tests or take the side panel off.
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