Spare parts for Carb Teikei (MZ/XTZ/XT)

[Hoke]

Who sells parts for the Baghira carbs?
Me and my friends have not found the "Throttle"-shaft as an spare part and both ours are worn and makes the Baggy to pop and have a bad ideling (airleak).
To bad since our carbs (after some work + Tunebike-kit) makes the engine go really nice!

It is the shaft on the secondary carb....

[Sourcer]

Eurospeed is the Swedish distributor (as you probably already know).

http://www.eurospeed.nu

Try a Yamaha dealer near you.

http://www.yamahacenter.com/

http://www.yamaha-motor.se/index.jsp

I asked Yamaha Center where i live and they said that there is no problem to get parts for the XTZ 660 Tenere engine.

Try Kedo in Germany if you have problem to find spare parts in Sweden.

http://www.kedo.de/

[Hoke]

No one of these have it, have been speaking to Yamaha and they do not sell this spare part... (Thats is why I am asking... )
They what to sell me a new carb.. My have been on the road for only 20 000 km...

[Sourcer]

I'm surpriced that the shaft is worned out pretty bad after only 20 000 km. What are the shaft made of? Brass?

[Hoke]

That is right, problably becase so it will wear before the alu carb.
I hade the same symptoms on my xtz660, but did not know why..

But this is after ca 10 000km (some hardcore) offroad use, same with my old XTZ and my friends XTZ now... I got 40 000km on my XTZ before the real offroad adventures begun and these problem started.
They still sell the carb, but they do not sell this (wear)spare part... Greate -NOT..

This is really crappy!

[Sourcer]

Is this the same carburetor?


http://cgi.ebay.co.uk/SZR-660-CARB-CARB ... dZViewItem

[Hoke]

Yes -thanks
To bad that it problably will hold only 10000km before next change the way i use it

Just fyi, the problems started and become a problem very fast this time for me (two days). It begun after i synced the carbs...


This symptoms seems to be a common problem with this carbs, but none seems to know why (not even the "pro"s) -untill now

[cat]

Yes -thanks
To bad that it problably will hold only 10000km before next change the way i use it
P

?

what about putting some moly.... Honda Moly grease, the stuff specified for GS driveshaft splines. somehow, get some moly coating on the shaft ends.

[Hoke]

Thanks, i did test that at first -but it does not work that good (vacuum)
We changed to a larger sealing, but that did not work very well eather. :-/

[phlat65]

2 things, I have seen repair kits for auto carbs thas fit an o-ring/washer/spring/washer in that order between the housing and the shaft plate to seal a worn housing.

2nd, many auto carb rebuilders will bore the housing and install a bushing to repair air leaks. starting to be very common on throttle bodys now.

there is no reason an o-ring on the shaft would cause any problems.

[phlat65]

http://www.corvair.com/user-cgi/catalog ... IN&page=62

scroll down to the carb shaft seaal kit to see what I mean. did this to one of my corvairs, lasted for years on a daily driver.

[Hoke]

Nice thinking!
But i do not thinkt that this solution will work in this vaccum carb.. Even with just a drop off grease will "jam" the shaft from moving easy enough to open or return ok.
If you have dismounted the carbs and tried -you will understand i think...
If it would be a "normal" setup of controlling the shaft -it would probably work ok

Another problem is that the worn shaft will displaces the throttle(the plate) = trouble -this will probably be fixed on one side with the plate in this "kits" althow.

[cat]

The bushing is the best way; you just need to find the right person to do the job. It wouldn't have to be Teflon - nylon or any of those plastic bushing materials would be good.

The grease I was talking about is not actually grease; it could never cause the shaft to stick. Honda Moly 60 (I think it's '60') is used for lubing the driveshaft splines on BMW R100/R80GS. "Moly" (molybdenum sulphide) forms a good coating on - and in - the metal surfaces. You would be using only a very thin film of it. What is happening there is that the wear is accelerated by abrasive dirt. Some sort of o-ring arrangement on the outside would help to reduce that.

[Hoke]

I think there is a reason that there is "reparingkits" to fix this problem on other carbs -but not on this one......
If someone have successfully fixed this problem on THIS CARB -PLEASE TELL ME!

[cat]

You need to get a bushing made.
Get dimensions - the shaft diameter for bushing ID, the carb body 'hole' for bushing OD (slightly bigger - like 0.1 - 0.2mm - than it is now), and the length the bushing should be. If you are going to use a drill to bore out the hole to take the bushing, the bushing OD should be exactly the same as the drill size, or 0.0x bigger. Otherwise, bore it out by hand, slowly, using some sort of abrasive like abrasive paper wrapped around a drill held in a pin vice. The bushing ID / the shaft diameter should be determined after the shaft has been cleaned up. The bushing length will have to be short enough so that it does not interfere with... anything and cause the shaft to stick.