Interesting afternoon
 

Well it was to me anyway. This afternoon I R been mostly cleaning carbs.

GruntyGiggles' ninja is going up for sale real soon so I am going to give it a service, change the fork oil and clean the carbs for the new owner.

Anyway, got the carbs off and doing them one by one to clean them and the jets/pilot needles and so on and I found that on each chamber, the person before me has managed to trap the edges of every single diaphragm.

http://i76.photobucket.com/albums/j1...g/DSCF3275.jpg


http://i76.photobucket.com/albums/j1...g/DSCF3277.jpg

So been ringing around to try and get some and find out that there are £23.50 +VAT EACH... EACH..

Oh my life, so that's over £100 for a full set.

Now, the bike had obviously been working fine with them like this, I'm sure many of you saw the bike flying passed on the AR as Grunty was a marker but I just couldn't put them back together as above with a clear conscience, they have been stressed and stretched in those areas, you can see it when you try to pull it straight, and they won't go back in to the correct shape.

Oh well, it needs doing now but £23.50+VAT EACH. What are they lined with magnesium or something?????

Re: Interesting afternoon
 

Caveat Emptor would have saved you £100 :p

Re: Interesting afternoon
 

a certain organ mentioned to me that by placing rubber in a sock and boiling it up in a pan it generally reforms to its manufactured shape... might be worth a shot if it saves you £100

Re: Interesting afternoon
 

recycling condoms again? ;)

Re: Interesting afternoon
 

hence the expected child ;)

Re: Interesting afternoon
 

Having worked in plastics, what owenski said is true, a lot of plastic moulded parts will 'remember' their shape.
Problem you might get is boiling water probably won't get them warm enough, a lot of PP and PVC stuff start to go pliable at around 104 degrees, so salt in the water will help you get the temp towards that figure.

The diaphragms will defo go back to their original shape if heated gently and there not creased or anything.

Personally I would get a heat gun on a low setting and heat them up away from the carbs obviously.
Keep the gun moving, not too close and not in one place and it will be fine.

Re: Interesting afternoon
 

If it's running alright, just put them back as they are. You'll know about it if they're leaking, and the rubber is flexible enough that if they're working they're unlikely to split in use.

Trick owenski describes can work on stretched and mullered brake seals.

Re: Interesting afternoon
 

I are sad that Chez is selling the bike :(

Re: Interesting afternoon
 

I told you not to open them up...

Re: Interesting afternoon
 

Cheers guys but I shelled out for the new ones, where the crease is on each, if you pull it and try to straighten it out they are very creased and not too happy about using them again.

Will give the heat a go now though just to see what it does.