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laminator
Joined: 27 Oct 2007 Posts: 320 Location: Midlands
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Posted: Tue May 15, 2018 4:40 pm Post subject: |
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I have had a look at quite a few latching red LED's but not found one that is the same. Although I have found some I'd be happy with, anyway....
I dug out the old set of clocks from a YB7 and they have the reserve light push-button on them. I believe its the same as the original, if not the original itself.
The reference on it is DS-700 although I couldn't find a match online.
If you have no joy finding one, PM me your address and I'll unsolder this one to get it out, then send it to you. I have put a 12v supply onto it and the LED is working
_________________ Bimotas, Yamaha FZR 2TK, Honda NC30, MV Agusta F3 800, Aprilia RS250 |
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Bud977
Joined: 03 Mar 2013 Posts: 525 Location: Sydney
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Posted: Tue May 15, 2018 8:22 pm Post subject: |
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I had assumed this part was taken from the donor FZR1000. Does anyone know how the reserve light is reset on a stock FZR1000? I had a look at the parts list but couldn't find anything similar in the instrument cluster or electrical sections. BTW the FZR fuel level sensor is still available. |
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Tirefriar
Joined: 18 Dec 2014 Posts: 659 Location: USA
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Posted: Wed May 16, 2018 5:10 am Post subject: |
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My YB10 arrived with the reserve switch and mechanism deleted. I went on to install Acerbis petcocks opened to reserve. Key is to keep keen eye on the odometer. I don't let it go past 150km, or just under 100 miles between fill ups. The 100 mi marker has been my rule of thumbs on pretty much all my bikes.
I know this is sort of a "chicken sh!t" approach to resolving the problem with the reserve switch and it doesn't add to originality of the bike, but its sure is cost effective and much more trouble free, unless of course one forgets to keep track of miles between fill ups... _________________ 1991 Bimota YB10
2001 MV F4
2003 Aprilia RSV Mille CE Replica
2004 BMW R11S BCR
2010 Ducati Streetfighter 1098 S |
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Admin Site Admin
Joined: 22 Oct 2007 Posts: 508 Location: Stafford, UK
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Posted: Wed May 16, 2018 10:59 am Post subject: |
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Hi
I have a very non standard switch wired in, cable tied to the fairing subframe at the moment! I would like to replace it with a standard style one, and like a source of a few of them.
The original Yamaha system is quite different. Think it is the same as the FZ750, and as such uses a sensor in the tank. When the fuel level drops to a certain level the fuel pump cuts out. The reserve switch just forces the pump to run even when the fuel level is below the sensor.
I have a suspicion my fuel petcock is playing up now. Seems to flow when on or off. Found this out when it ran out of petrol when pulling on to the drive .
All the best
Katy |
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Jonny B Bad
Joined: 05 Dec 2009 Posts: 555 Location: NE London
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Posted: Wed May 16, 2018 12:00 pm Post subject: YB Reserve switch |
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There is so much scope for fuelling woes on these bikes - carbs difficult to set up and difficult to get on and off and prone to wear - main fuel cock which seems to flow (or not!) what ever position it's in - tendency for fuel tank to crush pipe/s supplying the pump, once the motor is warm and has softened the fuel hose - failure of cheap and cheerful reserve switch - failure of points in the pump - inaccessible idle screw - inaccessible mixture screws.
Fortunately, they make up for all this when they're running properly - or at least I think they do - it's been so long since mine did _________________ What, Jonny's gone! |
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laminator
Joined: 27 Oct 2007 Posts: 320 Location: Midlands
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Bud977
Joined: 03 Mar 2013 Posts: 525 Location: Sydney
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Posted: Wed May 16, 2018 9:29 pm Post subject: |
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Admin wrote: |
The original Yamaha system is quite different. Think it is the same as the FZ750, and as such uses a sensor in the tank. When the fuel level drops to a certain level the fuel pump cuts out. The reserve switch just forces the pump to run even when the fuel level is below the sensor.
Katy |
On the FZR1000, the low fuel level triggers one cylinder to cut out. The push button is an acknowlegement of low fuel and re-starts that cylinder. |
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Bud977
Joined: 03 Mar 2013 Posts: 525 Location: Sydney
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Posted: Wed May 16, 2018 9:35 pm Post subject: Re: YB Reserve switch |
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Jonny B Bad wrote: |
There is so much scope for fuelling woes on these bikes - carbs difficult to set up and difficult to get on and off and prone to wear - main fuel cock which seems to flow (or not!) what ever position it's in - tendency for fuel tank to crush pipe/s supplying the pump, once the motor is warm and has softened the fuel hose - failure of cheap and cheerful reserve switch - failure of points in the pump - inaccessible idle screw - inaccessible mixture screws.
Fortunately, they make up for all this when they're running properly - or at least I think they do - it's been so long since mine did |
So true. On my race YB8, I have made sure I've kept the original Yamaha fuel hose to stop kinking. It's a heavy duty hose with a braided cloth cover and very resistant to kinking. I use one outlet with a high flow TZ250 fuel tap so no blockage problems. |
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Jonny B Bad
Joined: 05 Dec 2009 Posts: 555 Location: NE London
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Posted: Thu May 17, 2018 9:13 am Post subject: YB Reserve switch |
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Oh, and did I mention how critical float height is and how far it can end up from the 12-14mm recommended by Mr Yamaha! _________________ What, Jonny's gone! |
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