Mate of mine has a yonks old Yamaha Genesis. The fuel pump stopped working
and he assumed it had something to do with the relay.

Yesterday I took the pump apart and the contacts were a bit shite, so I
cleaned them up, adjusted the spring a bit, sprayed the whole lot with
switch cleaner and tested it. The solenoid activates, pushing the contacts
apart, but the solenoid stays activated. I can clearly see the gap between
the contacts. I don't know how many bikes have this type of non-return pump,
maybe someone here knows if there is a pump available these days to replace
it? I'm assuming that either the insulation around the contacts is no longer
insulating, or something is wrong inside the pump body, leaving the solenoid
permanently connected.

What say those that know?

--
Paul.
CBR1100XX SuperBlackbird (Buen mueble de patio), Orbea Dakar
BOTAFOT #4 BOTAFOF #30 MRO #24 OMF #15 UKRMMA #30
http://paulcarmichael.org/ (content pending)

On 22/03/2010 12:25, Paul Carmichael wrote:
> Mate of mine has a yonks old Yamaha Genesis. The fuel pump stopped working
> and he assumed it had something to do with the relay.
>
> Yesterday I took the pump apart and the contacts were a bit shite, so I
> cleaned them up, adjusted the spring a bit, sprayed the whole lot with
> switch cleaner and tested it. The solenoid activates, pushing the contacts
> apart, but the solenoid stays activated. I can clearly see the gap between
> the contacts. I don't know how many bikes have this type of non-return pump,
> maybe someone here knows if there is a pump available these days to replace
> it? I'm assuming that either the insulation around the contacts is no longer
> insulating, or something is wrong inside the pump body, leaving the solenoid
> permanently connected.
>
> What say those that know?
>

Make an offer on http://cgi.ebay.co.uk/360239910658?

--
/Simon

Simon Wilson wrote:
>
> Make an offer on http://cgi.ebay.co.uk/360239910658?
>

Thanks.

Some cheeky folks about. Wants 40 quid second hand. I've emailed him about
shipping to Spain.

--
Paul.
CBR1100XX SuperBlackbird (Buen mueble de patio), Orbea Dakar
BOTAFOT #4 BOTAFOF #30 MRO #24 OMF #15 UKRMMA #30
http://paulcarmichael.org/ (content pending)

Mark Olson wrote:

> Can you clarify what you mean by:
>
> "The solenoid activates, pushing the contacts apart, but the solenoid
> stays activated. I can clearly see the gap between the contacts."
>
> I don't understand how the coil can be drawing current, which is what I
> understand "solenoid stays activated" to mean, yet there is a "gap
> between the contacts".


That was the whole point, hence:

>>I'm assuming that either the insulation around the contacts is no longer
>>insulating, or something is wrong inside the pump body, leaving the
>>solenoid permanently connected.

> The pump should cycle until pressure builds up, when enough back pressure
> exists the contacts will stay open.

Yup, figured that.

> Maybe there is a busted spring inside.

No, the solenoid is pushing hard.

--
Paul.
CBR1100XX SuperBlackbird (Buen mueble de patio), Orbea Dakar
BOTAFOT #4 BOTAFOF #30 MRO #24 OMF #15 UKRMMA #30
http://paulcarmichael.org/ (content pending)

On 22/03/2010 13:09, Paul Carmichael wrote:
> Simon Wilson wrote:
>>
>> Make an offer on http://cgi.ebay.co.uk/360239910658?
>>
>
> Thanks.
>
> Some cheeky folks about. Wants 40 quid second hand. I've emailed him about
> shipping to Spain.
>

Yebbut that's only about three Euro at today's rate.

Happy to forward it on if you want to get it sent to me.

--
/Simon

Simon Wilson wrote:

> On 22/03/2010 13:09, Paul Carmichael wrote:
>> Simon Wilson wrote:
>>>
>>> Make an offer on http://cgi.ebay.co.uk/360239910658?
>>>
>>
>> Thanks.
>>
>> Some cheeky folks about. Wants 40 quid second hand. I've emailed him
>> about shipping to Spain.
>>
>
> Yebbut that's only about three Euro at today's rate.

All my hoard is in pounds sterling. I'm a little unhappy.

> Happy to forward it on if you want to get it sent to me.
>

Cheers.

--
Paul.
CBR1100XX SuperBlackbird (Buen mueble de patio), Orbea Dakar
BOTAFOT #4 BOTAFOF #30 MRO #24 OMF #15 UKRMMA #30
http://paulcarmichael.org/ (content pending)

Paul Carmichael wrote:
> Mark Olson wrote:
>
>> Can you clarify what you mean by:
>>
>> "The solenoid activates, pushing the contacts apart, but the solenoid
>> stays activated. I can clearly see the gap between the contacts."
>>
>> I don't understand how the coil can be drawing current, which is
>> what I understand "solenoid stays activated" to mean, yet there is a
>> "gap between the contacts".
>
>
> That was the whole point, hence:
>
>>> I'm assuming that either the insulation around the contacts is no
>>> longer insulating, or something is wrong inside the pump body,
>>> leaving the solenoid permanently connected.
>
>> The pump should cycle until pressure builds up, when enough back
>> pressure exists the contacts will stay open.
>
> Yup, figured that.
>
>> Maybe there is a busted spring inside.
>
> No, the solenoid is pushing hard.

Guessing a bit here, but I've come across some electromagnetic brakes in my
line of work that effectively have a bit of an over centre operation. Once
operated they don't like to spring back. It may just be a case of fine
tuning the spring slightly.

--
Malc

Rusted and ropy.
Dog-eared old copy.
Vintage and classic,
or just plain Jurassic:
all words to describe me.

Simon Wilson wrote:

> On 22/03/2010 13:09, Paul Carmichael wrote:
>> Simon Wilson wrote:
>>>
>>> Make an offer on http://cgi.ebay.co.uk/360239910658?
>>>
>>
>> Thanks.
>>
>> Some cheeky folks about. Wants 40 quid second hand. I've emailed him
>> about shipping to Spain.
>>
>
> Yebbut that's only about three Euro at today's rate.
>
> Happy to forward it on if you want to get it sent to me.
>

Thanks. I bought it with GBP8 delivery to Spain. I think it was GBP5 to
Blighty, so not too bad.

I made an offer of GBP30, which was automatically rejected. So how does this
offer thing work then, if offers are automatically rejected? If it had been
for me, I might have made more of an effort to knock him down, but my mate
just said to get him a pump.

--
Paul.
CBR1100XX SuperBlackbird (Buen mueble de patio), Orbea Dakar
BOTAFOT #4 BOTAFOF #30 MRO #24 OMF #15 UKRMMA #30
http://paulcarmichael.org/ (content pending)

On 25/03/2010 15:47, Paul Carmichael wrote:
> Simon Wilson wrote:
>
>> On 22/03/2010 13:09, Paul Carmichael wrote:
>>> Simon Wilson wrote:
>>>>
>>>> Make an offer on http://cgi.ebay.co.uk/360239910658?
>>>>
>>>
>>> Thanks.
>>>
>>> Some cheeky folks about. Wants 40 quid second hand. I've emailed him
>>> about shipping to Spain.
>>>
>>
>> Yebbut that's only about three Euro at today's rate.
>>
>> Happy to forward it on if you want to get it sent to me.
>>
>
> Thanks. I bought it with GBP8 delivery to Spain. I think it was GBP5 to
> Blighty, so not too bad.
>
> I made an offer of GBP30, which was automatically rejected. So how does this
> offer thing work then, if offers are automatically rejected? If it had been
> for me, I might have made more of an effort to knock him down, but my mate
> just said to get him a pump.
>

If there's a best offer, you know they'll take a lower price, so worth a
try. If they have it set up automatically, you get three chances to
guess what they've set the number at, after that you can't make any more
offers.

--
/Simon