Back to the Z finally. There wasn't any problem with the borrowed carbs. While the tank was removed, I removed the petcock to find the filter screen had a film of light rust on it. The tank was flushed again to be sure no rust remained. My carbs looked good but at this point I decided to replace the...

That is very clever.. makes finding TDC much easier. Probably a right-hand thread on the crank so was a good idea to remove the spark plug.

Thanks for doing that. Today I borrowed a set of VM29's off a friend's 78 Z1R. They have been modified by Yoshimura for racing. Changed the plugs to B7ES and took it for a ride. It ran like a scalded cat and the plug check looks good. As I came back to the shop, it stalled, started up then stalled a...

Still not pleased with the performance. The occasional spitting/popping is still there at 1/8 throttle and some bogging at full throttle. Coils have been changed and non resistor spark plug caps have been added. A small improvement. With the airbox removed now and velocity stacks added the spitting/...

Have you had time to install the Vape and try it out? I may have to get one for my DBD 34 as the old mag is in pretty bad condition.

The Vape on my Bul came directly from the mfg in Czech Republic. George just received one for a Husky. Shipping was about $35.00 and the price was much cheaper than from US/UK dealers.

Is the new ignition a 'Wassell Vape' unit or strictly a Vape? Seems to be two different units.

Took the bike out for a quick blast to see if I could get the rings seated better. The plugs did look some better so I won't worry about that anymore. Plug Ck.JPG The motor has had enough heat cycles to retorque the head, and check valve clearance again. Surprised to find 3 at .001" clearance a...

While waiting on the new spark plug caps to arrive I decided to dissect the the old ones. As I recall, the Goldwing caps were such that you could replace the resistors. I was able to pull the end that retains the plug wire out and the resistor dropped out along with the spring. I tested the resistor...

Well it runs, but not that smooth. It won't idle and does the crackle and pop in both the intake and the exhaust. Set the air screws at 1-1/4 but no help. A leak down check was in range with intake and exhaust silent so the crankcase vent sound was clear. Compression was 90#, not unexpected. A short...