I'm guessing that they're not supposed to be very baggy when in position?
What, if any, running problems would this give?

The Viagra revs fine on a partially open throttle but isn't keen on full
throttle when it will bog down so I'm trying to find likely causes.

--
Si - XV535 with baggy diaphragms.

"Mungo "Two Sheds" Toadfoot" <(E-Mail Removed)> wrote in message
news:WPKdnR7-(E-Mail Removed)...
> I'm guessing that they're not supposed to be very baggy when in position?
> What, if any, running problems would this give?
>
> The Viagra revs fine on a partially open throttle but isn't keen on full
> throttle when it will bog down so I'm trying to find likely causes.
>
Hold them up to the light. If you can see splits, holes (even pinprick
holes), replace them.
When the slides are closed, the diaphragms will appear creased or 'baggy'.
This is normal.

JB

JB wrote:
> "Mungo "Two Sheds" Toadfoot" <(E-Mail Removed)> wrote in
> message news:WPKdnR7-(E-Mail Removed)...
>> I'm guessing that they're not supposed to be very baggy when in
>> position? What, if any, running problems would this give?
>>
>> The Viagra revs fine on a partially open throttle but isn't keen on
>> full throttle when it will bog down so I'm trying to find likely
>> causes.
> Hold them up to the light. If you can see splits, holes (even
> pinprick holes), replace them.

They were 'fraying' in a couple of places around the edge but I've sorted
that. I did look for obvious splits but not tiny ones so I'll whip them out
again and have a closer look.

> When the slides are closed, the diaphragms will appear creased or
> 'baggy'. This is normal.
>

That's good then. Thanks.

--
Si - XV535

On Wed, 28 Feb 2007 18:08:14 -0000, "Mungo \"Two Sheds\" Toadfoot"
<(E-Mail Removed)> wrote:

>JB wrote:
>> "Mungo "Two Sheds" Toadfoot" <(E-Mail Removed)> wrote in
>> message news:WPKdnR7-(E-Mail Removed)...
>>> I'm guessing that they're not supposed to be very baggy when in
>>> position? What, if any, running problems would this give?
>>>
>>> The Viagra revs fine on a partially open throttle but isn't keen on
>>> full throttle when it will bog down so I'm trying to find likely
>>> causes.
>> Hold them up to the light. If you can see splits, holes (even
>> pinprick holes), replace them.
>
>They were 'fraying' in a couple of places around the edge but I've sorted
>that. I did look for obvious splits but not tiny ones so I'll whip them out
>again and have a closer look.

these are the people to go to when you want new ones

http://www.nrp-carbs.co.uk/index.htm

--
Adie
(replace spam with nickname to reply)

UKRM FAQ: http://www.ukrm.net/faq/

YZF-R1 : ZX9R-E1
keeper of the FAQ for my sins
MRO#11 BOTAFOF#7 BOTAFOT#130 DIAABTCOD#17 MIB#24 YTC#16 BOB#15 ex-UKRMMA#22 BOMB#11

Adie wrote:
>
> these are the people to go to when you want new ones
>
> http://www.nrp-carbs.co.uk/index.htm

£32 each? Bargain! I'm sure I saw some on eBay for around £90 each fairly
recently. Appreciated, thanks.

--
Si - XV535

On Wed, 28 Feb 2007 20:10:43 -0000, "Mungo \"Two Sheds\" Toadfoot"
<(E-Mail Removed)> wrote:

>Adie wrote:
>>
>> these are the people to go to when you want new ones
>>
>> http://www.nrp-carbs.co.uk/index.htm
>
>£32 each? Bargain! I'm sure I saw some on eBay for around £90 each fairly
>recently. Appreciated, thanks.

lovely bloke too. just don't get into a vodka drinking competition
with him.

cos you'll lose big stylee.
--
Adie
(replace spam with nickname to reply)

UKRM FAQ: http://www.ukrm.net/faq/

YZF-R1 : ZX9R-E1
keeper of the FAQ for my sins
MRO#11 BOTAFOF#7 BOTAFOT#130 DIAABTCOD#17 MIB#24 YTC#16 BOB#15 ex-UKRMMA#22 BOMB#11

In article <WPKdnR7-(E-Mail Removed)>,
(E-Mail Removed) says...
> I'm guessing that they're not supposed to be very baggy when in position?
> What, if any, running problems would this give?
>
> The Viagra revs fine on a partially open throttle but isn't keen on full
> throttle when it will bog down so I'm trying to find likely causes.

No2 son had this problem recently. Investigation revealed that one
diaphragm was no longer held properly at the end of the piston by the
inner sleeve and washers - so much so that the whole lot fell out in
bits when the cover was taken off.

A single drop of superglue became his friend :-)
Do take care you get the piston the right way up - comparison with
the other is advised!

Chris D
--
The Deuchars BBB#40 COFF#14
Suzuki GS550t, Yamaha XV750SE
http://www.Deuchars.org.uk
Tel(work):0115 951 6264

Chris N Deuchar wrote:
> In article <WPKdnR7-(E-Mail Removed)>,
> (E-Mail Removed) says...
>> I'm guessing that they're not supposed to be very baggy when in
>> position? What, if any, running problems would this give?
>>
>> The Viagra revs fine on a partially open throttle but isn't keen on
>> full throttle when it will bog down so I'm trying to find likely
>> causes.
>
> No2 son had this problem recently. Investigation revealed that one
> diaphragm was no longer held properly at the end of the piston by the
> inner sleeve and washers - so much so that the whole lot fell out in
> bits when the cover was taken off.
>
> A single drop of superglue became his friend :-)
> Do take care you get the piston the right way up - comparison with
> the other is advised!
>

Noted, thanks.

--
Si - XV535