She Gots The Hiccups - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 20 (permalink) Old 04-06-2014, 10:22 AM Thread Starter
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She Gots The Hiccups

recently had an accident and got the bike back on the road only to have the battery die the next day. replaced the battery and now as i am riding she will "hiccup" randomly. the red FI light will illuminate and the engine will cut out for a split second. now i know loose batt terminals can cause this so i double checked that those puppies are on tight.

i also remember that you can diagnose trouble codes by popping a couple wires into a sensor under the seat does anyone have the steps for that?

any ideas?

Thanks!

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post #2 of 20 (permalink) Old 04-06-2014, 04:49 PM
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On the SP2, look for a green 2-pole connector near the battery cover. That's the service connector.
For the SP1, I believe the connector is at the rear and is black. It too is a 2-pole connector.

Jumper the connector and switch the key on.
You should then see a series of blinks if a fault code is stored.

Short 1/2 second blinks are 1's, longer blinks are 10's.
For instance, 1 long followed by 2 short is a fault code 12.
Two long followed by 1 short is 21, and so on.

There may be a longer 1.2 second pause between sets of blinks for multiple faults stored.

One thing to be aware of, the ECM will store all fault codes over time unless cleared.
Therefore, if the bike had a fault years ago, and nobody cleared the stored fault, you could be getting a false reading.

It's best to clear the stored faults and what current faults the system is detecting.

To do this, refer to the service manual on clearing stored fault codes.

Last edited by SubSailor; 04-06-2014 at 04:51 PM.
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post #3 of 20 (permalink) Old 04-06-2014, 05:44 PM Thread Starter
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I knew sub sailer would know!

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post #4 of 20 (permalink) Old 04-06-2014, 07:19 PM Thread Starter
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Ok so I have noticed that it only happens when I am giving throttle and hit any size bump in the road and if I'm holding clutch w/o throttle it shuts off completely. Makes me think the lean sensor is haywire?! Make since?

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post #5 of 20 (permalink) Old 04-06-2014, 08:44 PM Thread Starter
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Ok no error codes so it's gotta be something else? Would the kickstand sensor be the issue?

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post #6 of 20 (permalink) Old 04-07-2014, 11:29 AM
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1. Check your battery connections again. If I had a dollar for every time I have checked someone's battery connection and found them to be loose after they told me they already checked I could buy a happy meal...

2. Check for chafed wires. All it takes is one strand of bare metal on any wire on the entire bike to ground out and you get instant spark kill to the engine. I've seen one little wire exposed by an exhaust hanger that pinched it cause an electrical gremlin that took months to discover.

3. What is your exact idle speed at 184° engine temp?

4. Do you blip the throttle at stop lights?
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post #7 of 20 (permalink) Old 04-07-2014, 01:05 PM Thread Starter
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I double checked the battery leads last night and they are tight as can be. They are making good contact.

Idle speed is about 1500-2000 same as it always has been.

Only thing to do is look around for pinched wires. On a short 4 mile ride to work today this hiccup issue happened about 6 times. Every time it happens it's when I hit any bumps in the road. Sometimes just the road reflector is enough to cause it.

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post #8 of 20 (permalink) Old 04-07-2014, 01:06 PM
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Bank Angle Sensor
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post #9 of 20 (permalink) Old 04-07-2014, 01:47 PM Thread Starter
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Is that something I need to replace or can I repair or disable it?

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post #10 of 20 (permalink) Old 04-07-2014, 01:48 PM
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It can be disabled, but I would highly suggest you replace it as it is responsible for turning off the engine & fuel pump when you crash. Verify it is the problem first though
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