Turning but no start
#1
05-06-2023 | 09:09 PM
Thread Starter
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Junior Member
Joined: May 2023
Posts: 2
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Turning but no start
Hello folks,
CBR250R 2012, nephew had troubles with the bike after winter.
The bike had a dead battery so it has been replaced. The battery is charged, good voltage (both cranking and resting).
It is turning, but not starting.
Does anyone have any advice? I am suspecting electrical just because he tried fixing it (replaced main fuse)
Thank you in advance!
CBR250R 2012, nephew had troubles with the bike after winter.
The bike had a dead battery so it has been replaced. The battery is charged, good voltage (both cranking and resting).
It is turning, but not starting.
Does anyone have any advice? I am suspecting electrical just because he tried fixing it (replaced main fuse)
Thank you in advance!
#2
05-06-2023 | 09:40 PM
Senior Member
Joined: May 2011
Posts: 1,987
Likes: 434
From: Mesa, AZ
Greetings & Salutations! 
Let's see if we can't fix this for you easily...
When was last time bike worked perfectly?
What happened between then and now?
Do you hear fuel-pump prime for 3-sec when you turn key ON, set start/stop = RUN?
Do you have multimeter and know how to use it to measure voltage and resistance (ohms)?
This is 5-minute fix with multimeter, or less in many cases... There's something wrong with electronics, can find easily with meter...
Let's see if we can't fix this for you easily...
When was last time bike worked perfectly?
What happened between then and now?
Do you hear fuel-pump prime for 3-sec when you turn key ON, set start/stop = RUN?
Do you have multimeter and know how to use it to measure voltage and resistance (ohms)?
This is 5-minute fix with multimeter, or less in many cases... There's something wrong with electronics, can find easily with meter...
#3
05-06-2023 | 09:56 PM
Thread Starter
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Junior Member
Joined: May 2023
Posts: 2
Likes: 0
Hello dannoxyz and thank you for getting back so fast!
I do have one.
initially the bike was dead from the winter (no tender). Charged the battery, hit ignition the bike died with a click sound.
Dash wouldn’t even light up.
Battery replaced and charged (main fuse was replaced before the battery). Dash is on, all lights on, it is turning but won’t start I know he did touch the fuses, everything is plugged ok (30Amp and 10Amps). Said did not touch anything beside that. Mentioned it was difficult to remove the plug attached to solenoid (hoping no wires damaged).
I will be at his place tomorrow to see what else I could test.
I do have one.
initially the bike was dead from the winter (no tender). Charged the battery, hit ignition the bike died with a click sound.
Dash wouldn’t even light up.
Battery replaced and charged (main fuse was replaced before the battery). Dash is on, all lights on, it is turning but won’t start I know he did touch the fuses, everything is plugged ok (30Amp and 10Amps). Said did not touch anything beside that. Mentioned it was difficult to remove the plug attached to solenoid (hoping no wires damaged).
I will be at his place tomorrow to see what else I could test.
Greetings & Salutations!
Let's see if we can't fix this for you easily...
When was last time bike worked perfectly?
What happened between then and now?
Do you hear fuel-pump prime for 3-sec when you turn key ON, set start/stop = RUN?
Do you have multimeter and know how to use it to measure voltage and resistance (ohms)?
This is 5-minute fix with multimeter, or less in many cases... There's something wrong with electronics, can find easily with meter...
Let's see if we can't fix this for you easily...
When was last time bike worked perfectly?
What happened between then and now?
Do you hear fuel-pump prime for 3-sec when you turn key ON, set start/stop = RUN?
Do you have multimeter and know how to use it to measure voltage and resistance (ohms)?
This is 5-minute fix with multimeter, or less in many cases... There's something wrong with electronics, can find easily with meter...
#4
05-07-2023 | 04:51 PM
Senior Member
Joined: May 2011
Posts: 1,987
Likes: 434
From: Mesa, AZ
Most likely you won't get fuel-pump prime. Something may be damaged in red starter-solenoid connector. Son may have yanked on wires in desperation rather than unclipping connector.
1st test is pull all fuses and measure them. I'd be trillionaire if I had penny for every time I heard, "Fuse looks OK!", but actually didn't conduct electricity at all.
Then measure voltage at various point with key on/start=RUN:
1. power input red/wht wire going into ignition-switch, volts=?
2. power output blk/red wire leaving ignition-switch, volts= ???
3. pink wire leaving ignition switch, volts = ???
4. power input to kill-switch, blk/grn wire, volts = ???
5. power output from kill-switch blk/blu wire, volts = ??
6. power input at fuel-pump relay, blk/blu wires, both of them, volts = ??
7. power output from fuel-pump relay when cranking, brn/red wire, volts = ?
1st test is pull all fuses and measure them. I'd be trillionaire if I had penny for every time I heard, "Fuse looks OK!", but actually didn't conduct electricity at all.
Then measure voltage at various point with key on/start=RUN:
1. power input red/wht wire going into ignition-switch, volts=?
2. power output blk/red wire leaving ignition-switch, volts= ???
3. pink wire leaving ignition switch, volts = ???
4. power input to kill-switch, blk/grn wire, volts = ???
5. power output from kill-switch blk/blu wire, volts = ??
6. power input at fuel-pump relay, blk/blu wires, both of them, volts = ??
7. power output from fuel-pump relay when cranking, brn/red wire, volts = ?
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