AlanB wrote:Thanks guys - How long would you normally need to keep petcock on PRI to fill carbs before moving to ON ?

Assuming the vac tap is working as it should you can switch to ON as soon as the engine is running.

Prime is just a bypass (like a normal manual tap) for the vac operated tap.
You need it on prime for initial cold starting to fill the carb float bowls.
Once running the tap can be moved to ON and the engine vac should keep it open and long as the tap diaphragm is ok.

garyd wrote:I've got a MKII crank but I think the teeth for the cam chain are different.

Can anyone be definitive on this?

Yes, 16 teeth instead of 15 and also a fatter alt taper.

1962royp wrote:I need a uk cam cover if you have one.

I have a UK cam cover which I want to exchange for a US emissions one.

Can fit a digital speedo to almost anything. Basic needs are usually a switched power source and speed sensor for the front wheel.. Some aftermarket digi speedos have internal power ( watch battery) which lasts around a year. Speed sensor is usually a magnet fixed to a disc bolt and a hall sensor on...

M10.
The bolt pitch is either 1.0mm or 1.25mm depending on the calipers used.

Don't use heat. it wont help.
Rubber mallet applied fore and aft of the head on the plain casting bulges for the cam sprockets and rock the head whilst pulling up.
Threads of the studs usually get grabbed by the gunked up head nut washers, especially the distorted copper ones if not already removed.

Redbeard wrote:Bollocks. Yet another variation between these two. Would there be any issues if I had the coils on their sides?

No, Put them anywhere you can.
Upside down, back to front. Doesn't matter.

RALPHARAMA wrote: Obviously if anyone's building something not using the original badges it will be looking for a new home providing an alternative can be found.

First dibs on that tank please if you get a replacement

Don't think those std tyres will last long.
They will be toast before you get to the bingo.
Might be a good idea to fit some wide go cart wheels.

Z650/Z750 and All 1000J/GPZ1100 type engines have low breathers.
GPZ750 turbo one also has bigger breather hole.

79 Gs1000-S and 79/80 us spec MK2's and Z1R etc with mk2 engines.

Rev counter is triggered by the coils so most likely a duff coil.

Do not use coils of a lower resistance than recommended otherwise they will run hot, overheat and fail.
Higher is ok though.

Or get (or make) one of these. Also great for holding clutch hubs. http://www.ebay.co.uk/itm/Sealey-Motorcycle-Bike-Locking-Pulley-Flywheel-Clutch-Holder-Tool-MS036/311267010784?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3Dadf8d8...