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Carb Diaphragms

  • Thread starter Thread starter Johnny Drummond
  • Start date Start date
J

Johnny Drummond

Guest
Hello all, just wondered if anyone stateside can reccomend a business that does replacement carb diaphragms & pistons -I have Mikuni BS34SS's fitted and the only company that do replacements here in the UK have shafted me for the last time(I sent mine off and paid for "express" return 3-5 working days-HA) on the 14th of this month and they still aren't back!,I've had trouble with them over main jets before but as I said they have a monopoly on this work here. Any help is greatly recieved.Johnny
 
Are you looking for replacement parts or someone to work on your carbs, also, what bike are these from.
 
Most places list the bike?

Most places list the bike?

Hey Johnny,
Looks like most places reference the bike make and model.
If you've salvaged those for your bike, look up the make and model of the bike they came from.
We got some OEM suppliers over here.
Bill
 
Also, alot of people sell replacement parts on ebay or whole carb setups sometimes for what it would cost for just the diaphrams, just have to be mindful of the condition of used parts or back to where you started.
 
OOPS, sorry guys,was up too early to function properly!. they are fitted to a 1984 GSX1100EZ,but are the same as GS1000E post 1980,GS1000G & 1100G,1100 Katana,GSX1100 ET & EX or GS1100EX/ET and to you and the GSX1100EZ or again GS1100EZ for those in the US,does that help??? Heres a photo of the bike,the engine is in a '79 GS1000 frame(not that it really matters)
 
If you find anything you like, but they won't ship international, you can send it to me in the states, and for postage I'll forward it to you!

p.s. nice looking bike, even though I prefer the stock airbox look, still very nice!!
 
Thanks for the link Bill,and to you for your kind offer OldSchool.It might be a while before I take you up on it as in the last 6 weeks I've had to pay out about $850US on vet bills,auto parts and the diaphragms those SOB's have at the minute,this is about all the "rainy day" money we have,but when I get a bit put back together again I'll PM you but I'm guessing that it will take $200(if I read the list on the link correctly) for the parts and I've just checked, it works out just over ?126 plus whatever we decide between us for shipping, so it will be at least 6-7 weeks before I can get that amount together.As for the bike, thanks for the comment,the filters behind the rain shield were not for fashion but because the wrecker that I bought the engine from was basically a badly shaved monkey who didn't know or couldn't remember if it had an airbox after the original bike went on fire(due to badly routed rubber oil cooler lines),I mean when I asked for the carbs he just pointed under a table and said "if you recognise them-go for it" and when I tried to use the only box I had-which was for the VM slide carbs I only had something like 2.88mm between the back of the carb casting and the airbox, and that was with no rubbers fitted to the box:eek: so pods and re-jetting it was.If the chance of a proper GSX airbox ever happens(and I can make it fit into the 1000 frame) I'd love to go back to standard as I kept the 107.5 mains the carbs came with,I'm running 117.5's with the pods.Johnny
 
roughly $47 to ireland from me using a flat rate box big enough to hold the parts.
usps.jpg
 
Thanks for the info Old School, as I said it will take me a few weeks to raise the money.They don't need replaced-yet, but you know how it goes,2 split and the others aren't too far behind! so I would rather have them sitting ready if I notice any deterioration in performance/running when the bike begins to be used regurlary for going to watch the races here as the season starts at the end of next month.Johnny
 
there is a company out of uk that sells them ,not to bad on price, you might be able to get a set of old carbs off ebay with good diaphragms, or change carbs to mic round or flat slides, those diaphragm carbs suck when the go bad , wayyyyy to expencive
mine were like 100 each! i got lucky on ebay, some bikes they are discontinued:eek:
 
johnbb71 said:
US $20 each and ships international with a tutorial on how to replace them.
http://jbmindustries.com/Yamaha650.html says yamaha but they are for bs carbs universal,just sayin, and a whole lot cheaper, check em out
Click to expand...

I've seen those before, I've heard a few use them with good results, he mentioned wanting the slide/cylinders as well, are they damaged or missing, why do you need the entire slide?
 
Thanks guys

Thanks guys

Okay hopefully in the correct order:D,Old Skool(sorry for misspelling your tag before!),I think he is talking about the mechanical slide type used mainly on 2 strokes ie.round slide or Mikuni RS34 flatside which are also mechanicaly operated with an arm the same as the GS550,750DB(wire wheel and rear drum braked at least in the UK) '76-79 and the GS1000HC,N and E '77-79, I thought that you had to buy the whole piston/diaphragm as a complete part because any microfische or online diagram I've ever seen has them that way.Hampshire-yup it was NRP, didn't want to name them in case they used this forum or had friends who do as I don't like to cause embarrasment if I don't have to-except to myself in which case I don't really care:p,also I didn't have my parts back!!!!.Johnbb, those look to be fantastic value!,will definatlet invest in 4 when funds allow-thanks.Anyway got the parts this morning, warmed them and fitted them.Hit the starter and we had life-until I let the choke off kuga,kuga,stall-oh ***k, what now? turned out that pillock here had put the drain pipe from the BOTTOM of the carbs onto the fuel tap instead of the damn vaccum pipe from the TOP:o:o, it technically shouldn't have started at all but with that fixed started fine and a quick spin up the road confirmed that if I nail it in 4th I'd better hook my feet under the footpegs-and no I'm not going to say just how fast I was going,but acceleration was enough to make me slide backwards on the seat.Once again thanks to everyone who posted for your help. Johnny
 
looks like I was hasty

looks like I was hasty

It appears after talking with the boss from NRP that the fault in not delivering the diaphragms was with the driver who picked up the package from the company!, according to their records(and my invoice) they were sent out on the next days collection but thrown into the bloody drivers cab and left for a week:mad:,Andy the boss of NRP was very apologetic when he phoned and is now trying to get compensation from Royal Mail-if you pay for special delivery(which the company charged me for after I asked for quick turn around) and the package is not at it's destination by 1pm next day they are fined.We shall see.Johnny
 
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