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2 x 29mm Mikuni BS34 carburettor slides fitted with new diaphragms. These slides are in good condition and were refurbished with brand new diaphragms. They were from a Yamaha XS650 but will fit a number of other bikes which have BS34s with 29mm slides. Note that these diaphragms do not have the...

Thanks, I'll check it out. I might be able to get some locally.

How much do you want for them and is it possible to get an estimate on postage? Happy to pay provided the cost is not off the planet....

Bars wanted the same as the ones in the attached picture. Must be in good condition. I live in Tasmania, Australia but willing to pay freight from overseas if necessary.

The only place to be!

Thanks for the tip. I'd tried searching fork oil, etc but didn't think of fork tools. The tip with the 17mm nut on the end of a couple of extension bars did the trick first time! Going to make a more permanent tool now for future use.

During transport my 81SH recently popped the gasket under the allen bolt in the bottom of the RH fork. I currently have the fork partially dismantled as the Allen screw will not undo. The assembly inside which the allen bolt screws in to is just turning. I tried with the fork in the bike and as...

The original springs on my bike were totally stuffed! No tension whatsoever. I got my new ones from MikesXS. Is there a better source?

Thanks for the tips. I was trying to point out all the things I had already looked at in the hope there was something obvious I had missed. It now seems clear that I have to go back and start from scratch. I do have BS34s and the idle air jets are fixed but the fuel jets are adjustable. They...

Thanks, Skull and everyone else. You're right, it is 5A9.*****. I'll certainly try the leads and caps. Peanut, your full message doesn't appear here but believe me advice is exactly what I'm looking for. Apologies if I gave you a different impression.

Inlet rubbers are brand new, I have a non-vacuum petcock. The colour of the plugs indicates mixture is fairly good - perhaps a little rich!

No, as I said in the post it's a 4M4, i.e. the Australian model. It still has points, unfortunately.

Have recently rebuilt my 81 SH (4M4). Timing is perfect, points and tappets are pretty much spot on, Float levels are perfect and carbs have been fully overhauled. Plugs are new. When I start the bike it only starts on the right cylinder (full choke). Once I give it a bit of a rev the left fires...

Thanks everyone. I eventually found our local oil manufacturer's recommendation on their website. The oil selection computer in the store didn't go back far enough for my bike. Penrite MC4T 20W50 mineral oil. That's what I'll be using from now on.

Thanks, Bob. Also had some tips from Paul, as you can see. I'll stay away from fully synthetic.

Thanks for the advice Paul. I had a semi-synth in but had to drain it as the starter motor seal is leaking. Will replace with the same stuff once repairs are done.

Anyone know of any reason why I shouldn't use fully synthetic MA rated oil in my '81 XS?

Thanks for checking. That's pretty much the same as mine is but mine is quite bad. Have found a new one from the UK, but horribly expensive. Guess I'll just have to grin and bear it!

Thanks. Wll wait to hear....

The one on my 81 Special has been damaged, presumably by a drop, at some time.Happy to buy a whole assembly if necessary.