With only 18 ft/lbs and a keyway broached in that original hub there should be zero chance of the hub getting taper lock on the crank nose. That should make the extracter threads redundant and a basic three (long bolt) puller like mine tapped into inboard holes on the flange more than adequate i wou...

I made a three bolt extractor for mine but as you know i have the std. fully flanged hub from the original kit. If it wernt for the fact that weld is so hard to drill and tap, i'd suggest building up the three stubs between the mounting 'arms' and machining back, then drill and tap. I would not have...

Hi Felix, Robs' experience is more up to date than mine but it looks like nothings' changed. There should be everything in this thread to allow it to work for you though. If you get stuck.............
AL

Here is a viable way out of youre situation. I know its a full engine but by the time you buy; head, cam cover, barrels and a set of pistons that will cost you more. You will also end up with a load of good useable spares going forward and they do say make an offer so might get it a bit cheaper than...

Heres' an 1100 head. Its the 'bispherical domes' version and looks to be good condition and complete apart from cams and a good price for one of this type. AL https://www.ebay.co.uk/itm/335131705308?hash=item4e0767ffdc:g:alEAAOSwCI9lXjYR&amdata=enc%3AAQAIAAAA0KCMEr6XAQbVVu%2BzLD0FPf6jK8N9u9e59dB...

April Fri 12 and Sat 13 Castle Combe, CBT May Sat 25 and Sun 26 Anglesey Welsh Classic Motorcycle Festival, CBT June 12 - 16 Punks Peak (Wheels and Waves) Biarritz June Sat 22 and Sun 23 suzuki live Cadwell Park, CBT (suzuki only) June 28th Retro Classic Cadwell Park MSV July Fri 26th Donnington Pa...

One here if youve had a recent lottery win :!: AL https://www.ebay.co.uk/itm/166444634591?hash=item26c0df91df:g:wDIAAOSwVJJlWAI-&amdata=enc%3AAQAIAAAAwN3gL5yJDn8LUj7fIbFzW46dEj0LW%2B66cdM%2F1BaAihfn%2FW%2FvdQ2mmgg9YFnq17BqNol%2FkIJQo7XNhvqZr1%2BfDHlVaR4WWyvqIP120rZokaB7XPtmY2uNO3bILkvgioXvhxPOBw...

https://www.ebay.co.uk/itm/165700214861?hash=item269480a04d:g:IDYAAOSwPu1kHtN7&amdata=enc%3AAQAIAAAA0NLcyNxRz%2B2L4B65mqz4%2BM8GYh26vJPXnyJhIkjU9v%2Fs6HNdhRnkdXqDSY8NOShDXWHo9Ky7Cv0mrM2krGKOUClN8zgPSSgVArkWwYjGZJqKhLhoieyoirBVV4%2FrSujrixBr5xvf6z37NtHJp%2BUVCkg2q3B5MtP6dUFrU7aUGA15KVGNg2UhkwDE2o...

I might be talking out of my hat here because i dont know the early engines but the Z900 manual shows a differnt 'bolt' (two stage bolt with spring and ball) in the aluminium boss you have pictured. This 'two stage bolt' appears to have a fine thread and the bolt (single head you have pictured) appe...

Hi Phil, SAE is a range rather than an actual number. 15 is probably from 12.5 to 17.5 for example. Not all producers use SAE, or use it the same way so its a bit of a lottery. Cst is the correct way to assess fork oil and you wont get that on the bottle. Safest to change it all since you need to bu...

https://www.z-power.co.uk/pin-auto-advancer-z-series
AL

Are they similar to the Z1R?

https://www.ebay.co.uk/itm/385619935693 ... XQjq5Q~c9D

AL

How about a hollow shaft with a shoulder on the inboard end. Shoulder detail is a mimic of the base of the advance and retard unit so uses the pin and slot to locate it. Longer bolt through the middle and away you go.
AL

Pin is available new from ZPower etc and is about £3. Just measured the inner track on the LHS of my J crank here and it is 32mm for information only. I would have a word with Ray at Debben Performance in Ringwood. He's been repairing / re-building Zed cranks for donkeys years, perhaps he can help w...

This has come up on here quite a bit in the past but not seen it recently. I dont know if its the same because you dont give details but i think it was generally accepted that it was frequently caused by poor repairs to cam cap threads particularly the J heads which are made from drop forged peanut ...