Same carb/injector spacing on all the aircooled 900 to 1100 zeds.

From the factory both cams should be at 110 degree lobe centres so go with that if you want to keep it to std specs.
You can close up that figure to around 107/108 deg if you want to perk it up a bit.
Take the degree readings at 1mm lift.
It doesn't matter what valve clearance you use.

If using std studs, Just screw them in up to the shoulder, lightly nip them up with some Loctite applied. If using APE studs etc with no shoulder you need to apply Loctite and screw them in to the required heights. Use a spare head nut with a ball bearing inside to nip up the studs , it's quicker an...

:?? Ok, valve clearances quoted are 2 - 4 thou, or 0.05mm to 0.1mm I have minus 12 thou - or 0.3mm, so if I go for a 205, instead of the existing 245, I will have an extra 0.4mm, less the 0.3 open valve, which leaves 0.1mm Correct? I am just trying to ensure that I don't make any silly mistakes as ...

the shims are metric ....just sayin :oops: oh dear OK - the gap under the valves is still 10 thou, and the clearance needs to be 2 to 4 thou? is this correct? Cheers for that :D You need to start by taking those clearance measurements in metric . Take them on the base circle with the lobe pointing ...

Rob, what temperature should engine paint be cured to? Local powder coater says 200 degrees? How long for? ~Jay. When doing my own engines with simoniz tough black or similar the temp is around 200 deg but the length of time varies with the size of the component as larger items take longer to get u...

Stove enamelling won't effect it. Just thrash as normal. And if the paint is black the barrels will actually run up to 50 degs cooler than bare alloy anyway. Not wanting to cause a bun fight but I'm happy to accept certain coating can give better heat dissipation but as stove enameling is mainly fo...

Stove enamelling won't effect it.
Just thrash as normal.
And if the paint is black the barrels will actually run up to 50 degs cooler than bare alloy anyway.

As you know that hole leads directly into the exhaust port so just tap a thread partial way down and Loctite a grub screw in it. ( bit of threaded bar offcut with a slot in the end to take a screwdriver will do the trick. Make sure the corresponding ex valve is closed so the swarf doesn't get in the...

I purchased mine from http://www.suzukiperformancespares.co.uk/spares/viton-valve-stem-seals/155/ Had thoses on me ebay watchlist, but decided to buy PMC ones, I could be wrong, I could be right, but the PMC ones do look nicer to me, it's more than likely the madness of King George Syndrome in my D...

Those seals are just normal "Viton" and no different to others. Fluorine is a std component in the chemical make up of Viton rubber which is a Fluoroelastomer Viton is also a trade mark of the DuPont rubber company and has become the generic term for that type of rubber. Much the same as ...

Those seals are just normal "Viton" and no different to others. Fluorine is a std component in the chemical make up of Viton rubber which is a Fluoroelastomer Viton is also a trade mark of the DuPont rubber company and has become the generic term for that type of rubber. Much the same as H...

I have Kibblewhite bronze guides in my Z1R - No problems. Only design difference to the later valves are the round keepers and the guides are cast iron as opposed to the 900's bronze ones which wore out quick due to the poor quality of their composition. Thanks & yeh I did state I know the diff...

Carefully drill up the centre, tap them M5 and draw them out using a 5mm bolt and a spacer or two. Just screw in the bolt with a spacer tube between the head and bolt ( M8 nut will do the trick) and keep tightening and they will pull out. They are only a light press fit, about 10mm long and come out...

The needle JETS are the small brass insert that are a snug press fit in the venturi floor. These are held in place by the immulsion tube also know as main jet holder. Which parts do you need ? as all these are available from NRP Keyster and are accurately made in my experience. It is the needle jet ...