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Post by kickstart on Oct 11, 2023 18:07:25 GMT
When I use my bike regularly I have no problem starting but on the rare occasion the bike has’nt been used for a week the battery is sluggish to turn the bike over , could something be draining the battery , the battery is a gel type around a year old ??
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Post by BritPete on Oct 11, 2023 18:20:23 GMT
Have you tried disconnecting the connector that comes from the solenoid to the wiring harness and putting an ammeter between them
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Post by kickstart on Oct 11, 2023 19:14:00 GMT
Have you tried disconnecting the connector that comes from the solenoid to the wiring harness and putting an ammeter between them No I’m fishing for ideas hoping to have a look this weekend as I’m no electrician |
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Post by McLellan on Oct 11, 2023 20:01:09 GMT
Is it a decent battery? I've been bitten with a fake Yuasa recently.
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Post by BritPete on Oct 11, 2023 20:02:10 GMT
Have you tried disconnecting the connector that comes from the solenoid to the wiring harness and putting an ammeter between them No I’m fishing for ideas hoping to have a look this weekend as I’m no electrician Have you got a multimeter - if so will rig up test on my SD and post some photos |
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Post by kickstart on Oct 12, 2023 11:37:19 GMT
Yes I have such a device and Thankyou very much 👍
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Post by BritPete on Oct 12, 2023 16:06:32 GMT
Before you start check the parking light is working on the parking light position on the ignition key With ignition at the off position Connect your probes to the multimeter - black to common - and set DC amps to the highest setting, in my case 10 amps, the red wire goes into the 10 amp meter socket  disconnect the +ve supply connector which goes from the solenoid connection to the wiring harness this has 2 spade connectors I have a couple of crocodile clips I have altered to slip onto the end of my probes plug a spare spade into the connector nearest the clip then side and connect the probes red to the battery side and then black to the wiring harness side  it will look like this  Test switch on the ignition key to the parking light position The amp meter will show a reading If the meter goes the wrong way then swap the connections  If there is no reading swap down a range Continued |
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Post by BritPete on Oct 12, 2023 16:12:04 GMT
Switch the parking light off and remove ignition key First Check Now reduce the amp reading stage by stage, you should be able to get to the lowest amp setting in my case 50 micro amps without the meter moving Note to do this I have moved the +ve connection on the meter to the lower ampage plug position  Second Check Reset the meter to the highest setting Now swap the crocodile clips to the other spade connection on the connector (the one furthest from the clip) Gradually move the amp setting on the meter down You should get no reading, on the lowest setting you may get a very slight fluctuation Meter on higher setting  Meter on lowest setting with a minute fluctuation 
I will PM you my phone number if you have any more questions |
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Post by andy1kenobe on Oct 12, 2023 16:42:58 GMT
Just a quick one Pete, and not trying to be ars*y, but with your meter set to 10A, the red lead should be plugged into the socket marked +DC 10A.
There is an internal shunt inside the meter to enable it to work with these currents. With your red lead in the socket you have pictured, it will not read anything as the selector switch at 10A will be routed to go through the shunt.
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Post by BritPete on Oct 12, 2023 17:27:23 GMT
Just a quick one Pete, and not trying to be ars*y, but with your meter set to 10A, the red lead should be plugged into the socket marked +DC 10A. There is an internal shunt inside the meter to enable it to work with these currents. With your red lead in the socket you have pictured, it will not read anything as the selector switch at 10A will be routed to go through the shunt. Your not being ars*y - you are quite right on the 10 Amp I will edit the post Post edited and it makes the current run on the 10 amp setting - well spotted |
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Post by duffer on Oct 12, 2023 19:22:55 GMT
Now THAT little exchange is why I love this forum. 👍
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Post by buster on Oct 12, 2023 21:15:37 GMT
and BP thinks I bamboozle people  |
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Post by buster on Oct 14, 2023 13:13:27 GMT
just a quick thought while I was refitting some carbs, is this connector from the rectifier nice and clean? the red and white wire is the charging wire and will show up as live with the ignition on or off but theres also an earth wire in there. dirty/corroded connectors could lead to the battery discharging  |
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Post by kickstart on Oct 15, 2023 18:22:41 GMT
Before you start check the parking light is working on the parking light position on the ignition key With ignition at the off position Connect your probes to the multimeter - black to common - and set DC amps to the highest setting, in my case 10 amps, the red wire goes into the 10 amp meter socket disconnect the +ve supply connector which goes from the solenoid connection to the wiring harness this has 2 spade connectors I have a couple of crocodile clips I have altered to slip onto the end of my probes plug a spare spade into the connector nearest the clip then side and connect the probes red to the battery side and then black to the wiring harness side it will look like this Test switch on the ignition key to the parking light position The amp meter will show a reading If the meter goes the wrong way then swap the connections If there is no reading swap down a range Continued Thankyou so much for this all I’ve managed to do so far due to family commitments is charge the battery and check this is reading around 12.88 going down to around 10.5 when I press the starter to start bike and reading around 13.5 - 13.8 when revving around 5000rpm so I believe battery to be ok and system charging , I’m going to check standing voltage tomorrow after work to see if it’s gone down any which I believe it will then hopefully get into checking the diode and rectifier and clean up the connections |
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Post by kickstart on Oct 17, 2023 18:12:59 GMT
So I’ve checked the battery tonight and still around 12.88 when standing not running I’ve cleaned the contacts on the red connector coming out of the rectifier they were a little green and grubby and when revving bike 6000rpm getting a reading between 14 to14.10 so I believe this to be ok , when I switch dipped beam light on dropping to around 13.40 ?? I believe this should be adequate to charge battery ??
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