testing

A bored out 500 ?

A carb slide 'hung up', needle clip come off or main/needle jet fallen out ? I'd remove the airbox/carb rubbers, check the slides are seating and if that doesn't show anything obvious block off the inlet of each carb to see which one is causing the engine to race. Might point you in the right direct...

Well my new output shaft turned up and as a matter of curiosity I compared the two. The old one (with signs of the shaft fretting in the bearing) is some 0.015 mm thinner than the new 'un. That'll explain why the old bearing could slide on and off by hand and the new shaft/bearing combo looks like i...

Ta Zorded you were on the money with Debben. One bearing ordered.

Oh Poo. Mea Culpa :| I should have checked harder; must have clicked on the J. Doing some more digging it's a 92045-1024 for the Z1000J-R and GPz1100. The 900's and Z1000A-D are a 92045-021. I'll ring Legend in the morning and see if they have a later style bearing. If not, anyone know where I could...

To answer my own bearing question... A browse through CMSnl's parts diagrams shows that the 1100 Unitrak and Z1000 share all of the same gearbox bearing part numbers. The Z1 and A4 have different numbers for the cup shaped bush on the input shaft and the big output bearing on the drive shaft but no ...

TVM. At that price it makes sense to bung a set in and find sommat else to tinker with over the Bank Holiday. Offhand, do you know if the bearings are the same for the Z1000 they list and the ones I need for my GPz1100A (Unitrak) engine? Whilst typing and tapping in to your experience.... is it 'nor...

Two steps forward, three steps back :( I'd got the bottom half of the engine back together and reached the point of fitting the outer gearbox cover. I'd noticed that the spacer on the output shaft (the large one between the big bearing and the sprocket) was a bit marked where it runs in the oil seal...

Presumably the tacho feed is from one coil? You could feed from both coils which will double the pulses to the tacho. You'd obviously need to put a diode in each feed line to stop the coils being powered through the common tacho connection. WARNING this advice is from someone who's electronics train...

Steve & Lester Harris made just that point to me today. They said they're seeing a new wave of Harris owners who are putting the bikes back to 'standard' instead of turning them into street fighters. Don't get me wrong; I deeply admire some of the specials (Piggies, and the Manx style one that P...

Well the frame's now in the hands of Steve Harris. While he's working on that, I started on the engine rebuild by fitting the lower crankcase into the engine holder that I've just treated myself to. http://ruffle.me.uk/pics/harris/stand.jpg It's not a bad bit of kit (made by Tag-Z in Wales) but they...

The only way you're going to see full battery voltage when connecting between the battery positive and the positive feed wire is for something on that wire to be connected to the bikes frame (negative). Battery -----------||||||++++++++++++++ | | Frame Voltmeter | | ------------------------------ If...

As always seems to be the way of such things, this project stalled with w*rk and other stuff. However the deluge seems to have slowed to a steady stream so I've found a teeny bit of time to get back on to it again. The frame is all stripped down and due to take a trip to Harris to get the battery bo...

this made me think - has anyone used one of those kits (e.g. Caswell) you can buy to do your own BZP plating ? any good ? I've used the Gateros kits and had good results. If you're doing a whole bike's worth then, unless you have loads of time on your hands, it'd be a PITA as each nut or bolt has t...