Author Topic: F1 Light issue  (Read 379 times)

Offline jf3000

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F1 Light issue
« on: March 14, 2019, 08:14:43 PM »
"When accelerating above 100kph the F1 light comes on solid and doesn't flash a code.
 It will clear once the bike is switched off and on again.
This issue will occur every time I accelerate quickly to just above 100 but if I accelerate slowly to just above 100 sometimes it won't come on.

Does anyone have any idea what could be causing this? "
 

Online Brock

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Re: F1 Light issue
« Reply #1 on: March 14, 2019, 09:48:50 PM »
Knock sensor wiring maybe, or perhaps a blocked 5 way connector??
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Offline cravenhaven

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Re: F1 Light issue
« Reply #2 on: March 15, 2019, 10:06:22 AM »
Is it 100kph or 120kph?. The ST1300 computer will monitor the knock sensor and flag an error (if detected) by lighting the F1 light if the engine revs are held over 4200rpm (120kph+) for more than a few seconds.
If the light has come on at any stage you will be able to read it out by following the appropriate procedure as shown in the workshop manual.
 

Online Williamson

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Re: F1 Light issue
« Reply #3 on: November 24, 2019, 11:38:58 AM »
The FI light has been coming on intermittently since Southport TAS.  If engine is turned off, light goes off, bike runs normally for an undetermined time, if FI light comes on again, repeat above.

Problem start with the GIpro (gear indicator) playing up, not working, working intermittently and finally, not work at all.  Same time, speed started playing up, working intermittently and finally, now not work at all.   I isolated GIpro (white four pin plug coonector under pillion seat), everthing worked okay for a short time, but now no speedo, no odometer, and FI light coming on intermittently.

I have diconnected all leads from the battery and will leave for a day or two, hopefully this will allow ECU and / or other items to reset themselves.

In the meantime, I'm reviewing other information I can find via the internet, but if the combined wisdom within OzSTOC and ST-Owners has any words of wisdom, they would be appreciated.

Cheers,  Williamson (AKA Michael)

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Offline cravenhaven

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Online Williamson

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Re: F1 Light issue
« Reply #5 on: November 24, 2019, 01:09:49 PM »
some pointers here: https://www.st-owners.com/forums/threads/gipro-ds-gear-indicator-installation-on-st1300-2010-model.100076/page-2

Thanks for the link, I hadn't found that one.  Had found another thread on ST-owners, have asked a similar question there.
Cheers,  Williamson (AKA Michael)

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Online Brock

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Re: F1 Light issue
« Reply #6 on: November 24, 2019, 03:09:35 PM »
Sounds like the speed sensor may have failed, seeing it affects all the items mentioned. I believe its not a hard fix.
Brock
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Online Langers

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Re: F1 Light issue
« Reply #7 on: November 25, 2019, 07:26:12 AM »
If it is the speed sensor it is a really easy fix (I could do it). The only really important thing to remenber is to tie a piece of string to the existing wiring conector on the sensor so when you pull the old sensor out you can tie the string to the new sensor and pull it back up to connect it to the bike wiring. It would be a real pain to put it back together without the string.
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Online Williamson

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Re: F1 Light issue
« Reply #8 on: December 01, 2019, 12:13:45 PM »
Bike sitting idle with battery disconnected for best part of the week, battery on full charge, took time to isolate the add-ons (heated grips, battery charger lead, lead for heated hand grip for pillion, GPS & 12 volt accessory socket - all had been added at different times and looked a bit messy - so consolidated all of them), then everthing reassembled, short ride, no speedometer.

Sounds like the speed sensor may have failed, seeing it affects all the items mentioned. I believe its not a hard fix.

Okay, where do I start on that one.  New one, or just remove, clean, re-fit?

If it is the speed sensor it is a really easy fix (I could do it). The only really important thing to remenber is to tie a piece of string to the existing wiring conector on the sensor so when you pull the old sensor out you can tie the string to the new sensor and pull it back up to connect it to the bike wiring. It would be a real pain to put it back together without the string.

Sound like some words of experience, any guidance will be welcomed.  I would like to have a layman's attempt before I need to take it to a Honda dealer, I'm guessing they'll know how to charge on supply and fitting.  Might even cost more that a Tassie trip.
« Last Edit: December 01, 2019, 02:43:10 PM by Williamson »
Cheers,  Williamson (AKA Michael)

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Re: F1 Light issue
« Reply #9 on: December 03, 2019, 11:45:45 AM »
Hi Michael, sorry for the delayed response I only got back from port Melbourne to Glenalta on Sunday in some fairly poxy weather. The following is the post I put up earlier when I replaced my VSS:

I ended up purchasing the VSS through Partzilla (including the "O" ring) and had it delivered after around 10 days and saved a bit over $50. (I reckon it was around $150 Aus $)
Using the info from the US ST site I decided to do the job myself. It required the removal of the right hand cowl. The tricky bit was made easier by tying string to the old part at the electrical connector for use in bringing the new connector up to where it plugs in. The only other tricky part is screwing the new sensor bolts (2) in and not cross threading them as you are working by feel. The upshot is, if i can instal a vss, pretty much anyone can. It was a good feeling to see the speedo working again and i gave it a good test the week before last by riding from Adelaide to Sydney and back over 5 days and the bike didn't miss a beat.

I reckon it took me 1/2 hour all up. If I remember correctly the FI light threw error code 11

Cheers ... Mark
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Online Williamson

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Re: F1 Light issue
« Reply #10 on: December 03, 2019, 11:56:29 AM »
Hi Michael, sorry for the delayed response I only got back from port Melbourne to Glenalta on Sunday in some fairly poxy weather. The following is the post I put up earlier when I replaced my VSS:

I ended up purchasing the VSS through Partzilla (including the "O" ring) and had it delivered after around 10 days and saved a bit over $50. (I reckon it was around $150 Aus $)
Using the info from the US ST site I decided to do the job myself. It required the removal of the right hand cowl. The tricky bit was made easier by tying string to the old part at the electrical connector for use in bringing the new connector up to where it plugs in. The only other tricky part is screwing the new sensor bolts (2) in and not cross threading them as you are working by feel. The upshot is, if i can instal a vss, pretty much anyone can. It was a good feeling to see the speedo working again and i gave it a good test the week before last by riding from Adelaide to Sydney and back over 5 days and the bike didn't miss a beat.

I reckon it took me 1/2 hour all up. If I remember correctly the FI light threw error code 11

Cheers ... Mark

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Cheers,  Williamson (AKA Michael)

Motorcycling - the best time you can have with your clothes on ...........

Afterlife - up there for the climate, down there for the company.