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...

With the clutch cover removed I noticed a mis-match of .012" between the upper and lower case halve, only at one place. Now the question is since the upper half has no engine number stamping, were they even a matched pair? :oops: Uneven Case5.JPG At this point I will just try to blend the surfa...

Yep, the spring showed up after dragging a magnet all over the floor. I'm glad because the petcock was dripping. Problem solved. The motor wouldn't fire up without a battery booster. The voltage draw due to all the lights is just too much for the battery I have. This calls for a hi-performance batte...